Characteristics of a microbridge type MEMS sensor for the thermal conductivity measurement of gases by a steady state method

2014 ◽  
Author(s):  
Kenta Fujii ◽  
Shigenobu Muraoka ◽  
Sigeru Omatu ◽  
Mitsuaki Yano
Keyword(s):  
Thermal Conductivity ◽  
Steady State ◽  
Conductivity Measurement ◽  
Thermal Conductivity Measurement ◽  
Mems Sensor ◽  
Steady State Method ◽  
State Method

scholarly journals Numerical Simulation of Thermal Conductivity of Foam Glass Based on the Steady-State Method

Materials ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 54 ◽  
Author(s):  
Zipeng Qin ◽  
Gang Li ◽  
Yan Tian ◽  
Yuwei Ma ◽  
Pengfei Shen
Keyword(s):  
Thermal Conductivity ◽  
Steady State ◽  
Heat Flow ◽  
Thermal Resistance ◽  
Thermal Insulation ◽  
Foam Glass ◽  
Orthogonal Experimental Design ◽  
Carbonate Content ◽  
Steady State Method ◽  
State Method

The effects of fly ash, sodium carbonate content, foaming temperature and foaming time on foam glass aperture sizes and their distribution were analyzed by the orthogonal experimental design. Results from the steady-state method showed a normal distribution of the number of apertures with change in average aperture, which ranges from 0.1 to 2.0 mm for more than 93% of apertures. For a given porosity, the thermal conductivity decreases with the increase of the aperture size. The apertures in the sample have obvious effects in blocking the heat flow transmission: heat flow is quickly diverted to both sides when encountered with the aperture. When the thickness of the sample is constant, the thermal resistance of the foam glass sample increases with increasing porosity, leading to better thermal insulation. Furthermore, our results suggest that the more evenly distributed and orderly arranged the apertures are in the foam glass material, the larger the thermal resistance of the material and hence, the better the thermal insulation.

A Spherical Steady-State Method to Measure Soil Thermal Conductivity

2019 ◽  
Vol 52 (12) ◽  
pp. 1572-1576
Author(s):  
S. M. Mahdavi ◽  
M. R. Neyshabouri ◽  
H. Fujimaki
Keyword(s):  
Thermal Conductivity ◽  
Steady State ◽  
Soil Thermal Conductivity ◽  
Steady State Method ◽  
State Method

Film Cooling Performance for Combustor Wavy Liner-wall Evaluated by Steady-state Method Using Two Different Thermal-conductivity Materials

2017 ◽  
Vol 2017.23 (0) ◽  
pp. 517
Author(s):  
Hitoshi Taniguchi ◽  
Ryosuke Kondo ◽  
Akira Murata ◽  
Hiroshi Saito ◽  
Kaoru Iwamoto ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Steady State ◽  
Film Cooling ◽  
Cooling Performance ◽  
Steady State Method ◽  
State Method
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