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Methodological reviews and analyses on the emerging research trends and progresses of thermoelectric generators

Selvan, Krishna Veni and Hasan, Md. Nazibul and Mohamed Ali, Mohamed Sultan (2019) Methodological reviews and analyses on the emerging research trends and progresses of thermoelectric generators. International Journal of Energy Research, 43 (1). pp. 113-140. ISSN 0363-907X

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Official URL: http://dx.doi.org/10.1002/er.4206


Thermoelectric generator is among the earliest initiated electricity-harvesting methods. It is a very potential power harvester that can convert wasteful thermal energy into electricity. However, it often suffers from low energy conversion rate due to its inconsistent heat source, inefficient thermoelectric material (or thermoelement) performance, and incompetent structural issues. Progressively for the first time, detailed methodological surveys and analyses are made for bulk, thick, and thin films in this review. This is in order to accommodate better insights and comprehensions on the emerging trends and progresses of thermoelectric generators from 1989 to 2017. The research interests in thermoelectric generators have started back in 1989, and have continuously experienced emerging progresses in the number of studies over the last years. The methodological reviews and analyses of thermoelectric generator showed that almost 46.6% of bulk and 46.1% of thick and thin film research works, respectively, are actively progressed in 2014 to 2017. Nearly 86.2% of bulk and 44.1% of thick and thin film thermoelectric generators are realizing in between 0.001 and 4 μW cm−2 K−2, while 43.1% of thick and thin films are earning among 10−6 to 0.001 μW cm−2 K−2. The highest achievement made until now is 2.5 W cm−2 at a temperature difference of 140 K and thermoelectric efficiency factor of 127.55 μW cm−2 K−2. This achievement remarked positive elevation for the field and interest in thermoelectric power generation. Consecutively, the research trends of fundamental devices' structure, thermoelement, fabrication, substrate, and heat source characteristics are analyzed too, along with the desired improvement highlights for the applications of thermoelectric generators.

Item Type:Article
Uncontrolled Keywords:heat transfer, power application, power harvester, thermal energy
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:87632
Deposited By: Yanti Mohd Shah
Deposited On:30 Nov 2020 17:06
Last Modified:30 Nov 2020 17:06

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