記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：ISMNT  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：Japan Society of Mechanical Engineers  

DOI： 10.1299/jmsesdm.2017.9.a202

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：Combustion Institute  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：Combustion Institute  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.tca.2016.05.005

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：日本機械学会  

<p>Heat flux measurement method with thin film resistance sensor in a premixed gas combustion field has been studied to develop an accurate heat flux sensor, and to grasp and improve a heat transfer loss of the engine in SIP (Cross-ministerial <u>S</u>trategic <u>I</u>nnovation Promotion <u>P</u>rogram) innovative combustion technology project. The MEMS technology was introduced to satisfy the requirement of the accurate heat flux measurement with high temporal, spatial and heat flux resolution for a turbulent heat transfer in the engine. The thin film resistance sensors of 250 to 1000 micron scale were fabricated on the Si substrate, and then a calibration method, measurement characteristics and response to the combustion were studied. Since the heat flux was measured through the surface temperature measurement and the transient heat conduction analysis of the sensor, accurate data and an exact thermal model are required. The heat flux calibration using self-heating showed a good agreement between the excited heat flux of 400 kW/m² level and measured one with an error less than 10 kW/m² for the wide frequency range from 200 Hz to 8 kHz by introducing an interfacial thermal resistance in the thermal model. The developed measurement system showed heat flux peak of 250 kW/m² level with noise of 10 kW/m² level against a butane-air premixed gas combustion in an open chamber. Heat transfer analysis showed that the heat flux trend after the peak can be explained by heat conduction between the burnt gas and the sensor wall. It was also demonstrated that the developed system can measure heat flux down to 10 kW/m² and up to 5 kHz frequency range. Good prospect of the heat flux sensor for the engine application was obtained with the sufficient accuracy and the resolutions.</p>

DOI： 10.1299/transjsme.16-00083

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1299/jtst.2016jtst0038

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.expthermflusci.2015.02.002

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1166/jnn.2015.9665

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.ijheatmasstransfer.2014.04.012

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：日本伝熱学会  

DOI： 10.11368/tse.22.47

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：日本伝熱学会  

DOI： 10.11368/tse.22.11

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1299/jtst.7.463

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1299/kikaib.78.1870

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Japan Society of Mechanical Engineers  

DOI： 10.1299/kikaic.76.1945

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1299/kikaib.76.771_1932

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1299/kikaib.76.764_634

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Japan Society of Mechanical Engineers  

DOI： 10.1299/kikaic.76.1931

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1299/kikaib.72.2524

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：社団法人 日本伝熱学会  

Cells and living tissue slightly but always generate metabolic heat as long as they are alive. Thus, biological activity can be measured through the observation of metabolic heat, which has been developed as &ldquo;bio-calorimetry&rdquo;. On the other hand, further improvements in thermal sensing ability can be expected with use of the MEMS (Micro Electro Mechanical System) technology. The purpose of this study is to develop the monitoring technique of the metabolic heat of cells in as small number as possible with the MEMS technology. If the monitoring technique of metabolism of a few cells or even a single cell is made available, it plays very important rolls in bio- and medical- engineering, pharmaceutical sciences, and so on. In this study, a bio-calorimeter with a MEMS thermopile sensor was made, and its performance and metabolism monitoring of Yeast were tested. The thermopile sensor consisted of 350 thin film thermocouples of Cr and Ni strips of 20 &mu;m width on a 150 &mu;m thick glass plate. The thermopile sensor composed a calorimetric cell as a bottom plate with thick aluminum frame. The calorimetric cell was placed in a triple thermostatic chamber which employs a proportional control with a Peltier device and PID control with heater. The calorimeter showed a sensitivity of 0.62 V/W under the condition of including culture solution, time constant of the calorimetric cell of 90 sec, and a noise equivalent power of 60 nW, which corresponds to metabolic heat of 3 &times; 10³ cells of Yeast. In the growth experiments of Yeast, growth thermograms for 10⁵&sim;10⁷ cells can be measured with reasonable generation times. It was demonstrated that the detectable number of Yeast cells of the MEMS calorimeter is much smaller than that for the traditional bio-calorimeter.

DOI： 10.11368/tse.14.115

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：一般社団法人日本機械学会  

Local temperature variation beneath boiling bubble was measured with a MEMS (Micro Electro-Mechanical Systems) integrated sensor to investigate a boiling heat transfer mechanism. The sensor consisting two trigger heaters and six thin film thermocouples across the heaters within 880 μm region on a silicon or glass substrate can measure temperature distribution of heating surface with less than 0.1 ms temporal resolution. As a result, measured temperature variations can be brought into correspondence with the bubble behavior taken by a synchronized high-speed video. The temperature variations also show a formation of micro layer, extension of a local dryout region and rewetting with bubble departure. Based on the measurement, a state transition chart of the heating wall beneath the bubble in temporal and spatial domain can be drawn. This study presents a new approach method to the heat transfer mechanism of mucleate boiling.

DOI： 10.1299/kikaib.72.2532

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Heat Transfer Society of Japan  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1541/ieejsmas.124.453

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1299/kikaib.70.1285

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：日本機械学会  

Gas absorption and pressure drop characteristics of a slug flow in a microchannel were studied experimentally with a CO_2 and water system. The slug flow provides advantages of a large specific interface area, a toroidal flow in the slug, and high heat transfer capability of the microchannel. The absorption rate was measured by optically detecting volume change of bubbles along the channel; then an absorption time constant was formulated as a function of inner diameter, bubble velocity, and slug length. The pressure drop was also formulated by fitting experimental data to an equation modeled as a sum of the Poiseuille flow part and the toroidal flow part. The formulas demonstrated high mass transfer performance and compactness of the proposed system. Simulation of the microchannel gas absorber, of which channel length was set to keep outlet liquid concentration at a specified value, showed high performance by reducing the channel diameter with a slight increase of pressure drop.

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：The Visualization Society of Japan  

DOI： 10.3154/jvs.23.151

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）   出版者・発行元：日本機械学会  

Measurement of temperature and thermal property distributions with a nanometer scale spatial resolution is important in various fields such as micro- and nano-electronics, material research, and so on. Scanning Thermal Microscope (SThM) provides topological and thermal images with a spatial resolution of several tens of nanometers by a cantilever with a thermocouple or resistance temperature device. Usually, the SThM passively measures temperature or thermal properties by detecting thermal information through a cantilever tip on a sample and converting it with a calibration curve. However, the passive method has an important issue on accuracy of temperature measurement because measured values are influenced by various factors such as surface temperature, thermal properties, unevenness of sample surface, shapes of the tip, contact force, adsorption layer, and so on. Therefore, we have developed a novel active method for quantitative temperature imaging regardless of variations in thermal conductance at the contact point. In the active method, a thermal feedback control step maintains the cantilever at the same temperature as the sample surface by detecting heat flow along the cantilever and feeding power proportional to it to the cantilever; then cantilever temperature is measured by another sensor on it. The passive method has the advantages of systemic simplicity and rapid response. On the other hand, the active method affords accuracy in temperature measurement : it can measure real temperature in principle as long as the thermal conductance has a finite value, no matter how it changes. We experimentally examined the active method by producing multi-function cantilevers and a feedback circuit. The cantilevers have a heat flow sensor, electric heater and a temperature sensor on their small silicon dioxide bodies, as shown in Fig. A1. The active system with sufficient heat flow detection sensitivity demonstrated good performance in real temperature measurement regardless of thermal conductivity differences among samples. The measurement system showed a thermal response of about 50Hz when the cantilever contacts on a tiny thin film resistor on the SThM under a vacuum condition. Furthermore, imaging tests demonstrated performance of the active method. Figure A2 shows a result of topological and thermal images of chromium strips by passive and active methods. Maximum temperature in the active method agreed well with strip temperature measured from electric resistance. It shows that the feedback system compensates variation of contact conductance. Now, we have two thermal imaging modes in the SThM with nano-scale spatial resolution : one is the passive mode with a fast and easy thermal imaging capability, the other is the active mode with quantitative temperature imaging capability.[figure]

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：一般社団法人日本機械学会  

A novel radiation temperature measurement method was invented. In the traditional radiation thermometry, an emissivity data of a sample is necessary for converting the detected radiation intensity into temperature with a particular calibration curve. On the other hand, temperature of the sample can be decided by finding the sensor temperature at which the radiation intensity is null in our method. Introduction of the null method into radiation thermometry eliminates the need for the emissivity value. The principle of the method was verified with a measurement system where a heater-equipped commercial thermopile device was driven with a thermal feedback circuit. Quantitative temperature measurement was achieved for the flat brass surface with black paint or with plastic tape. Furthermore, a integrated radiation sensor having a cantilever type thermopile, electric heater and thermocouple was made by the silicon micro-fabrication technology. Measurement test with the sensor showed that the method absorbs the difference in emissivity, and that local temperature distribution in the sensor influences the detection of radiation intensity.

DOI： 10.1299/jsmeptec.2002.0_109

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：The Visualization Society of Japan  

Scanning Thermal Microscope takes topographic and thermal images with sub-micron spatial resolution. A real temperature measurement method on the SThM has been developed by using a thermal feedback system, where a cantilever is kept same temperature as sample by generating heat proportional to heat flow along it. The micro-fabricated cantilever having thermopile, heater and thermocouple showed good performance of temperature accuracy of below ±1K, contact size of less than 30nm, and thermal response of 50Hz. It is also demonstrated that the system takes qualitative thermal images by a passive operation and quantitative temperature images by the active operation regardless of variations in the contact condition and thermal properties.

DOI： 10.3154/jvs.22.1Supplement_171

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1023/A:1020683217466

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Japan Society of Calorimetry and Thermal Analysis  

原子間力顕微鏡や走査型トンネル顕微鏡に様々な手段で温度計測機能を付加することで,走査型熱顕微鏡が開発されてきた。SThMは100nm以下の空間分解能で試料表面の温度や物性値の分布を計測することが可能である。熱計測における空間分解能の大幅な向上は,例えば微小電子デバイスや集積回路,複合材料,局所的な触媒反応など,従来不可能であったサブミクロン構造物の熱的な直接観察を可能とするだろう。本稿では,様々な手法のSThMの特徴と現状を概説し,特に将来性の有望な熱電対型SThMについて詳しく説明する。さらに,高い空間分解能を持ちかつ正確に試料の実温度を計測する能動型計測法について紹介する。

DOI： 10.11311/jscta1974.28.18

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：一般社団法人日本機械学会  

A novel simple micropump driven by bubble generated by D.C. heating was developed and investigated. The pump consists of a glass tube narrowed in the middle and heater located at the conical region of tube. Observation of the bubble with a high speed video or by detecting displacement of laser passed working fluid near the heater showed that bubble generates, travels toward widening direction and collapses periodically. Pump performance of maximum pressure of 400Pa and maximum flow rate of 40μl/min was measured. The maximum pressure for various pumps was related to minimum diameter of the tube. It was shown from both experiment and numerical simulation using a simple model that driving force of the pump is made by surface tension effect. The simulation showed that taking evaporation and condensation of bubble into theoretical model is important for predicting the bubble behavior and the pump performance.

DOI： 10.1299/jsmemecjo.2000.1.0_715

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

CiNii Research

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1299/kikaib.64.463

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：一般社団法人日本機械学会  

Experimental study on microscale measurement of temperature and thermophysical properties using the Atomic Force Microscope was conducted. Thermal and topological images were taken by scanning a gold film on nickel wire type thermocouple probe on sample with constant contact load. Visualization of temperature distribution of thin film resistor of 20μm square and thermal conductance distribution of composite material called CFRP were attempted. With reducing ambient gas pressure, heat transfer mode between the probe and sample changes from gas conduction to solid conduction through contact point, thus contrast of temperature image becomes weaker and spatial resolution improves from 30 μm to less than 1 μm. In the properties measurement, it has been demonstrated that sub-micron scale visualization of thermal conductance is possible by this method and resultant image is affected by sample geometry and thermophysical properties distribution.

DOI： 10.1299/kikaib.64.549

CiNii Research

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

CiNii Research

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

Web of Science

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1299/kikaib.63.1412

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1299/kikaib.63.605_261

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：公益社団法人 日本冷凍空調学会  

The distribution of ice-rich layer in an ice storage tank is an important factor to estimate the thermal performance of a dynamic-type ice storage system. The ice-rich layer distribution and the water permeability were tested by using cylindrical tanks. The accumulation of ice-rich layer was predicted by a model analysis in which Darcy's law was applied. From the results of both experiments and analyses, the effect of water flow rate on the time history of the ice-rich layer formation were revealed. An average downward superficial velocity in the ice-rich layer is a dominant factor in the component design for an efficient use of an ice storage tank. This calculation model for the distribution of ice-rich layer can be considered to be applicable to realize the high thermal performance for large-scaled ice storage tanks.

DOI： 10.11322/tjsrae.14.87

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：The Japan Society of Mechanical Engineers  

A method of measuring temperature and thermal properties of nonconductive fluids was experimentally studied, where 1ω and 3ω components of the voltage drop across a thin metal wire probe heated with an AC current of frequency ω were measured. The temperature distribution of a weak natural convection plume from a horizontal wire in water was visualized by this method and it was shown that background noise and self-heating of the probe limit the measurement resolution. Thermal conductivity measurements were performed for air, water, ethanol, etc. using a 10μm-diameter platinum wire, with applied AC frequency ranging from 0.1 Hz-10 kHz. Since thermal conductivity is derived from the measured 3ω component by comparing with a thermal conduction model, the effect of natural convection from the probe itself was important and a restriction on applicability of the method was obtained in terms of the Rayleigh and Fourier numbers.

DOI： 10.1299/kikaib.62.2767

CiNii Research

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1115/1.2824027

Web of Science

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：一般社団法人日本機械学会  

A new technique, which uses the Atomic Force Microscope (AFM) coupled with a micro-thermocouple cantilever, for measurement of microscale temperature profile has been developed. Topological and thermal images of any solid sample can be obtained simultaneously by this technique. Using a handmade thin-wire thermocouple and a thin-film thermocouple deposited on a commercially available Si_3N_4 cantilever, some working small electric devices were measured in both air and vacuum. Since heat conduction through the air between the sample and the probe was dominant in air, clear but distorted thermal images were obtained. In vacuum, heat transfer through the contact point between them was so small that a signal to noise ration was low and the conventional signal amplifying technique was not helpful. The Lock-in technique was employed to detect such small signals and finally, a true temperature image of sample surface was acquired. Also, the thermal environment surrounding the cantilever in the AFM is discussed in this paper.

DOI： 10.1299/kikaib.62.284

CiNii Research

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1063/1.1145474

Web of Science

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

CiNii Research

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1063/1.114102

Web of Science

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：一般社団法人日本機械学会  

When a water-ethanol binary mixture condenses, one observes dropwise condensation on the liquid film even though either substance is completely soluble in the other. The phenomenon is not well understood. This paper discusses liquid film instability using perturbation theory as the drop growth mechanism. The results show that in drop growth, the Marangoni number (Ma, i.e. , the concentration dependence of the surface tension) plays a more important role than the absolute value of the surface tension. When a pure, single-component vapor condenses, dropwise condensation does not occur because Ma of a pure substance is always negative ; however, in a binary mixture, the surface tension may be different, and therefore the possibility exists that Ma is positive. If so, the mode of condensation may become dropwise. However, this will depend on the diffusive resistance which, if lowered, makes dropwise condensation more difficult.

DOI： 10.1299/kikaib.60.1337

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

Web of Science

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1115/1.2911440

Scopus

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1299/kikaib.60.2171

Scopus

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

Web of Science

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：一般社団法人日本機械学会  

Condensation in a horizontal tube initially of pure vapor which completely condenses at the outlet, is theoretically analyzed. The tube interior is divided into three regions : the first is entirely vapor, the second is a thin film region where Nusselt-type condensation occurs, and the last is the tube bottom region where condensate accumulates and flows to the outlet. It is important to estimate the height of the accumulated condensate region to predict the total heat transfer. Therefore, the inlet level of the condensate as variable parameters, as well as two opposite factors, shear stress and gravity, is considered in this third region. Compared with a previous analysis which neglected the gravitational force, the result of this analysis nearly matches the experimental data.

DOI： 10.1299/kikaib.59.255

CiNii Research

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：The Japan Society of Mechanical Engineers  

Based on extensive experimentation and observation of condensation on finned tubes with radial ridges on the fin surfaces, a model was developed to predict the condensation performance of that tube. Not only the overall condensation performance, but also the local condensation rates were predicted by this model. The predictions accurately coincide with the experimental data. The ridges on the fin surface play an important role in condensation heat transfer enhancement, because the ridges not only extend the thin condensate film area but also promote convective heat transfer in the film.

DOI： 10.1299/kikaib.57.1719

CiNii Research

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：The Japan Society of Mechanical Engineers  

Condensation heat transfer of a nonazeotropic binary R113-R114 vapor mixture in a vertical tube is investigated experimentally and theoretically, for cases of both constant and varying wall temperature along a flow direction. Experimental results show that a minimum temperature difference is required for complete condensation at an outlet of the condenser tube. This temperature difference and the heat transfer coefficients can be accurately predicted by a theory which assumes a well-mixed condition in the condensate, that is, a uniform concentration profile in the condensed liquid. When the fin height is 0.2 mm, augmentation of heat transfer by an inner finned surface occurrs in the liquid film but not in a vapor phase. For both cases of the constant and varying wall temperature, the heat transfer coefficients correlate well when an averaged temperature difference between the wall and the bulk flow is used as a characteristic temperature difference.

DOI： 10.1299/kikaib.55.3183

CiNii Research

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記述言語：日本語   著書種別：学術書

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記述言語：日本語   出版者・発行元：一般社団法人日本機械学会  

The purpose of the study is development of a heat flux sensor for measuring heat flux from burnt gas to engine inner wall to improve thermal efficiency of the engine in SIP innovative combustion technology project. The heat flux measurement method, where heat flux is derived through transient heat conduction analysis combining with surface temperature measured with MEMS thin film resistor sensor, was experimentally examined. Heat flux measurement experiment in a butane-air premixed combustion system in a open chamber with the MEMS sensor was conducted. It was confirmed that the sensor and the method can measure 100kW/m^2 level heat flux at 1ms level temporal resolution.

CiNii Research

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記述言語：日本語   出版者・発行元：一般社団法人日本機械学会  

Heat flux measurement method on engine inner wall is required to grasp and improve heat transfer loss of the engine in SIP (Cross-ministerial Strategic Innovation Promotion Program). The purpose of the study is to develop a heat flux sensor for the engine with high temporal, spatial and heat flux resolution by means of the MEMS technology. The heat flux measurement method using surface temperature measurement and transient heat conduction analysis was examined. MEMS thin film resistor temperature sensor was fabricated for preliminary test. Frequency characteristics evaluation of the sensor through numerical simulation showed that thicker substrate should be used to lower available frequency band. Premixed combustion test indicated that the method is usable to heat flux measurement to the combustion system with 1 ms temporal and 13kW/m^2 heat flux resolution.

CiNii Research

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記述言語：日本語   出版者・発行元：一般社団法人日本機械学会  

Recent progress in the nano technology increases the importance of removal of nano- and submicron- size SPM (Suspended particulate matter). We are studying a humidity swing air cleaning method that remove the SPM by humidifying and dehumidifying air. We observed the SPM captured on an thin metal film by electrostatic method with an SEM and an AFM. The observation showed a tendency in the shape, large particle has rugged shape and small particle has a spherical shape. It was found that the SPM a chemical reaction on the copper film, and reaction marks tell that the SPM is composed of solid particles and liquid particles by almost same ratio. Also we tried to increase removal ratio in humidity swing air cleaning method. The experimental result showed removal ratio was increased by putting a stack of thin horizontal plates after dehumidifier.

CiNii Research

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記述言語：日本語   出版者・発行元：一般社団法人日本機械学会  

This study has been investigated characteristics of phase change heat transfer at the liquid-vapor interface around a boiling bubble using laser interferometry. Initially, to evaluate measurement accuracy of the used interferometric temperature measurement technique, a temperature field of water around a heated fine wire was measured and the temperature data was compared to the result of a transient heat conduction simulation. It was indicated that laser interferometry was available for temperature measurement in fast and local heat transfer phenomena such as liquid phase heat transfer in boiling. In the boiling experiment, a temperature field around a spherical bubble growing in the superheated water was measured. Over 80% of heat flux calculated from temperature gradient was measured with an uncertainty of ±30%.

CiNii Research

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DOI： 10.1115/ICNMM2013-73211

Scopus

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記述言語：日本語   出版者・発行元：一般社団法人日本機械学会  

To evaluate liquid phase heat transfer, temperature field of the liquid phase around an isolated boiling bubble was measured using Mach-Zehnder type interferometer. As a result, macroscopic thermal flow field in boiling was observed. However, in the vicinity to the liquid-vapor interface, expected thermal boundary layer indicates evaporative heat transfer was not measured, and the lack of the spatial resolution of the used interferometer was shown. Thus the measurement system was improved to obtain temperature information of thin thermal boundary layer and spatial resolution was improved to 2.75μm/Pix. Finally, a temperature field around the bubble was captured using renewed measurement system, and the measurement of the evaporative heat transfer near the interface was successfully achieved.

CiNii Research

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記述言語：日本語   出版者・発行元：一般社団法人日本機械学会  

In the present study, we measured liquid phase temperature field during pool boiling with the laser interferometry, and tried to directly evaluate the heat transfer from the liquid to the bubble. The MEMS thermal sensor which can control the bubble generation was used as the heating surface, and the thermal field around the isolated bubble without bubble-bubble interaction was measured. The interferometric method successfully visualized macroscopic thermal field in the liquid phase such as swell of the thermal boundary layer with the bubble growth and the hot wake accompanied by the rising bubble. However the temperature gradient driving the evaporative heat transfer in the vicinity of the interface was not able to be measured due to shortage of the spatial resolution. Two-dimensional thermal fluid analysis demonstrated that the improvement in resolution by one order of magnitude will be required in the future work.

CiNii Research

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記述言語：日本語   出版者・発行元：一般社団法人日本機械学会  

Interferometric temperature measurement around an isolated boiling bubble was conducted for studying heat transfer from liquid phase to the bubble. Finite fringe interferogram was captured with Mach-Zehnder type interferometer and a high-speed camera. Brightness distribution in the interferogram was converted to series wrapped phase image and axisymmetric differential temperature image through wrapped phase image, differential phase image, unwrapped phase image, and differential refractive index image by the Hilbert transform and Abel inversion. The resulted differential temperature image shows that the superheated liquid layer on the heating surface is lifted up and stretched by the growing bubble, and that hot liquid flow is accompanied by departed bubble.

CiNii Research

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DOI： 10.1115/IHTC14-22794

Scopus

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記述言語：英語   会議種別：口頭発表（一般）  

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記述言語：英語   会議種別：口頭発表（一般）  

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記述言語：日本語   会議種別：口頭発表（一般）  

キャピラリ管を先鋭化し，先端部に微小ヒータを設置したメニスカスチップを開発し，先端部の濡れを制御することで微小物体の付着，分離をコントロールできることを示した．

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記述言語：日本語   会議種別：口頭発表（一般）  

微小なカンチレバー型熱分析プローブを開発し，微量物質の高速・高感度熱分析と微量質量分析に関して報告した．

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記述言語：日本語   会議種別：口頭発表（一般）  

MEMS技術で製作した高感度サーモパイルセンサを利用したバイオカロリメトリの高感度化を研究している．微量な酵母菌の増殖過程が明確に計測されたことを報告．

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記述言語：日本語   会議種別：口頭発表（一般）  

蒸気泡を発生させる電解トリガーと微小薄膜熱電対を集積したMEMSセンサにより沸騰熱伝達のメカニズムを実験的に調べた．気泡底部の温度変動を計測し，基板内の非定常熱伝達解析を行うことで，気泡への熱伝達過程が明確に示された．

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記述言語：英語   会議種別：口頭発表（一般）  

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記述言語：英語   会議種別：口頭発表（一般）  

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記述言語：日本語   会議種別：口頭発表（一般）  

空気に加熱加湿と冷却除湿を行う湿度操作を行い，浮遊微粒子を除去する基礎研究に関して報告した．

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記述言語：日本語   会議種別：口頭発表（一般）  

気泡トリガーと薄膜熱電対を集積したMEMSセンサを用いた沸騰熱伝達機構の実験的解明を報告．気泡成長には約50%が基板からの熱伝達で賄われていることが示された．

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記述言語：日本語   会議種別：口頭発表（一般）  

原子間力顕微鏡AFMに温度計測機能等を集積したカンチレバープローブを組合せた走査型熱顕微鏡による局所熱伝導率計測に関する研究を報告した．

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記述言語：日本語   会議種別：ポスター発表  

空気を加湿・除湿する湿度操作を行うことで，浮遊粒子状物質の除去を行う空気清浄法に関して報告した．

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記述言語：日本語   会議種別：ポスター発表  

微小な物質を把持，移動，設置するマイクロマニピュレーションを効果的に行うため，先端部の濡れを熱的に制御するメニスカスチップを提案し，その動作を確認した．

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記述言語：日本語   会議種別：口頭発表（一般）  

薄膜熱電対，気泡トリガーを集積した沸騰熱伝達機構を実験的に調べるMEMSセンサについて報告を行った。

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記述言語：日本語   会議種別：口頭発表（一般）  

熱電対，ヒーター，サーモパイル等を集積したカンチレバー型カロリメータに関する報告を行った。

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記述言語：日本語   会議種別：ポスター発表  

熱電対，ヒーター，サーモパイル等を集積したカンチレバー型カロリメータに関し，空気の影響を報告を行った。

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記述言語：日本語   会議種別：ポスター発表  

MEMSサーモパイルセンサを２つ使用した示差式のバイオカロリメータの開発に関して報告した。

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記述言語：日本語   会議種別：口頭発表（一般）  

熱電対，ヒーター，サーモパイル等を集積したカンチレバー型カロリメータにより，共振を利用した微量質量計測に関して報告を行った。

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記述言語：日本語   会議種別：口頭発表（一般）  

示差式バイオカロリメータの高感度化を行いナノワット級の発熱計測を試みた。

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記述言語：英語   会議種別：口頭発表（一般）  

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記述言語：英語   会議種別：ポスター発表  

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記述言語：英語   会議種別：ポスター発表  

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記述言語：英語   会議種別：口頭発表（一般）  

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記述言語：日本語   会議種別：口頭発表（一般）  

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記述言語：日本語   会議種別：口頭発表（一般）  

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記述言語：日本語   会議種別：ポスター発表  

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記述言語：日本語   会議種別：口頭発表（一般）  

researchmap

researchmap

researchmap

researchmap

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