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Open AccessArticle

A Thermo-Electric Apparatus for Thermal Diffusivity and Thermal Conductivity Measurements

1
Department of Engineering and System Science, National Tsing-Hua University, 101, Sec.2 Kuang Fu Rd., Hsinchu 30013, Taiwan
2
Green Energy & Environment Research Laboratories, Industrial Technology Research Institute, 195, Sec.4, Chung Hsing Rd., Hsinchu 31040, Taiwan
*
Author to whom correspondence should be addressed.
Energies 2019, 12(22), 4238; https://doi.org/10.3390/en12224238
Received: 7 October 2019 / Revised: 1 November 2019 / Accepted: 4 November 2019 / Published: 6 November 2019
(This article belongs to the Section Thermal Management)
In this study, a one-dimensional heat transfer measurement device is developed based on the mathematical theory of the Angstrom method. To conform to the mathematical assumption, it is required that the device precisely controls the heat source to generate sinusoidal temperature signal. A thermo-electric module is used as the heat source for the measurement platform. This module is connected to a computer for program control, such that the temperature can be controlled quickly, precisely, and dynamically. In this study, five common heat-conducting materials are tested to verify the proposed one-dimensional heat transfer measurement device. By substituting the experimental results into the mathematical model of the Angstrom method, the thermal diffusion and thermal conductivity of the test material is calculated. The experimental results are compared with the physical properties of the materials, and the accuracy error is extremely low. This study confirmed that the Angstrom method theory applied thermal diffusivity and thermal conductivity measurement, which can be realized by thermo-electric temperature control technology. View Full-Text
Keywords: Angstrom method; thermo-electric cooling module; thermal diffusion; thermal conductivity Angstrom method; thermo-electric cooling module; thermal diffusion; thermal conductivity
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MDPI and ACS Style

Zhang, W.-H.; Lin, W.-K.; Tsai, C.-H.; Wu, P.-H.; Wu, S.-K. A Thermo-Electric Apparatus for Thermal Diffusivity and Thermal Conductivity Measurements. Energies 2019, 12, 4238. https://doi.org/10.3390/en12224238

AMA Style

Zhang W-H, Lin W-K, Tsai C-H, Wu P-H, Wu S-K. A Thermo-Electric Apparatus for Thermal Diffusivity and Thermal Conductivity Measurements. Energies. 2019; 12(22):4238. https://doi.org/10.3390/en12224238

Chicago/Turabian Style

Zhang, Wen-Hua; Lin, Wei-Keng; Tsai, Ching-Huang; Wu, Pei-Hsun; Wu, Shih-Kuo. 2019. "A Thermo-Electric Apparatus for Thermal Diffusivity and Thermal Conductivity Measurements" Energies 12, no. 22: 4238. https://doi.org/10.3390/en12224238

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