A novel numerical case-study for thermoelectric module with hollow semiconductor

Most recently, some researchers proved that the hollow structure for p-type and n-type semiconductor of thermoelectric can improve its performance. However, the impact of the inner to outer radius (as the most important geometric parameter of hollow leg) for all thermal, mechanical, exergetic and ec...

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Main Author: Zuhair R. Abdulghani
Format: Article
Language:English
Published: Elsevier 2022-09-01
Series:Case Studies in Thermal Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214157X22005275
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author Zuhair R. Abdulghani
author_facet Zuhair R. Abdulghani
author_sort Zuhair R. Abdulghani
collection DOAJ
description Most recently, some researchers proved that the hollow structure for p-type and n-type semiconductor of thermoelectric can improve its performance. However, the impact of the inner to outer radius (as the most important geometric parameter of hollow leg) for all thermal, mechanical, exergetic and economic characteristics have not been properly clarified. Hence, in this case-study, attempts are made to evaluate a thermoelectric generator with hollow semiconductor under different values of ITO (the ratio of inner radius to the outer radius of semiconductor) from all aforementioned viewpoints. Based on the results, although larger ITO generates significantly higher power, its mechanical reliability is diminished. Indeed, a critical value of ITO was recognized after which the mechanical stress passes yield stress and makes failure in the legs. Increment of ITO2 from 0.1 to 0.8 increases the output power from around 0.01 to around 0.025 which means 2.5 times higher. Besides, a remarkable 100% reduction in $/Watt and 20% improvement in exergetic efficiency are observed due to the reduction in the used material in hollow semiconductor. However, the ITO should be selected considering the mentioned critical value to avoid the passing from yield stress. The impact level of ITO on each parameter is different with each other as reported in this research.
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spelling doaj.art-cd3b6e403804474db2b0d4f220dc6a2a2022-12-22T04:01:44ZengElsevierCase Studies in Thermal Engineering2214-157X2022-09-0137102281A novel numerical case-study for thermoelectric module with hollow semiconductorZuhair R. Abdulghani0Department of Mechanical Engineering Technology, Yanbu Industrial College, Yanbu Al-Sinaiyah City, 41912, Saudi ArabiaMost recently, some researchers proved that the hollow structure for p-type and n-type semiconductor of thermoelectric can improve its performance. However, the impact of the inner to outer radius (as the most important geometric parameter of hollow leg) for all thermal, mechanical, exergetic and economic characteristics have not been properly clarified. Hence, in this case-study, attempts are made to evaluate a thermoelectric generator with hollow semiconductor under different values of ITO (the ratio of inner radius to the outer radius of semiconductor) from all aforementioned viewpoints. Based on the results, although larger ITO generates significantly higher power, its mechanical reliability is diminished. Indeed, a critical value of ITO was recognized after which the mechanical stress passes yield stress and makes failure in the legs. Increment of ITO2 from 0.1 to 0.8 increases the output power from around 0.01 to around 0.025 which means 2.5 times higher. Besides, a remarkable 100% reduction in $/Watt and 20% improvement in exergetic efficiency are observed due to the reduction in the used material in hollow semiconductor. However, the ITO should be selected considering the mentioned critical value to avoid the passing from yield stress. The impact level of ITO on each parameter is different with each other as reported in this research.http://www.sciencedirect.com/science/article/pii/S2214157X22005275ThermoelectricTEGHollow legNumerical
spellingShingle Zuhair R. Abdulghani
A novel numerical case-study for thermoelectric module with hollow semiconductor
Case Studies in Thermal Engineering
Thermoelectric
TEG
Hollow leg
Numerical
title A novel numerical case-study for thermoelectric module with hollow semiconductor
title_full A novel numerical case-study for thermoelectric module with hollow semiconductor
title_fullStr A novel numerical case-study for thermoelectric module with hollow semiconductor
title_full_unstemmed A novel numerical case-study for thermoelectric module with hollow semiconductor
title_short A novel numerical case-study for thermoelectric module with hollow semiconductor
title_sort novel numerical case study for thermoelectric module with hollow semiconductor
topic Thermoelectric
TEG
Hollow leg
Numerical
url http://www.sciencedirect.com/science/article/pii/S2214157X22005275
work_keys_str_mv AT zuhairrabdulghani anovelnumericalcasestudyforthermoelectricmodulewithhollowsemiconductor
AT zuhairrabdulghani novelnumericalcasestudyforthermoelectricmodulewithhollowsemiconductor