A Structural Review of Thermoelectricity for Fuel Cell CCHP Applications

Joint Authors

Bayendang, Nganyang Paul
Kahn, Mohamed Tariq
Balyan, Vipin

Source

Journal of Energy

Issue

Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-23, 23 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2020-07-21

Country of Publication

Egypt

No. of Pages

23

Main Subjects

Mechanical Engineering

Abstract EN

This article starts by introducing the ongoing South Africa electricity crisis followed by thermoelectricity, in which eighteen miscellaneous applicable case studies are structurally analysed in detail.

The aim is to establish best practices for the R&D of an efficient thermoelectric (TE) and fuel cell (FC) CCHP system.

The examined literature reviews covered studies that focused on the thermoelectricity principle, highlighting TE devices’ basic constructions, TEGs and TECs as well as investigations on the applications of thermoelectricity with FCs, whereby thermoelectricity was applied to recover waste heat from FCs to boost the power generation capability by ~7–10%.

Furthermore, nonstationary TEGs whose generated power can be increased by pulsing the DC-DC power converter showed that an output power efficiency of 8.4% is achievable and that thicker TEGs with good area coverage can efficiently harvest waste heat energy in dynamic applications.

TEG and TEC exhibit duality and the higher the TEG temperature difference, the more the generated power—which can be stabilised using the MPPT technique with a 1.1% tracking error.

A comparison study of TEG and solar energy demonstrated that TEG generates more power compared to solar cells of the same size, though more expensively.

TEG output power and efficiency in a thermal environment can be maximised simultaneously if its heat flux is stable but not the case if its temperature difference is stable.

The review concluded with a TEC LT-PEM-FC hybrid CCHP system capable of generating 2.79 kW of electricity, 3.04 kW of heat, and 26.8 W of cooling with a total efficiency of ~77% and fuel saving of 43.25%.

The presented research is the contribution brought forward, as it heuristically highlights miscellaneous thermoelectricity studies/parameters of interests in a single manuscript, which further established that practical applications of thermoelectricity are possible and can be innovatively applied together with FC for efficient CCHP applications.

American Psychological Association (APA)

Bayendang, Nganyang Paul& Kahn, Mohamed Tariq& Balyan, Vipin. 2020. A Structural Review of Thermoelectricity for Fuel Cell CCHP Applications. Journal of Energy،Vol. 2020, no. 2020, pp.1-23.
https://search.emarefa.net/detail/BIM-1184074

Modern Language Association (MLA)

Bayendang, Nganyang Paul…[et al.]. A Structural Review of Thermoelectricity for Fuel Cell CCHP Applications. Journal of Energy No. 2020 (2020), pp.1-23.
https://search.emarefa.net/detail/BIM-1184074

American Medical Association (AMA)

Bayendang, Nganyang Paul& Kahn, Mohamed Tariq& Balyan, Vipin. A Structural Review of Thermoelectricity for Fuel Cell CCHP Applications. Journal of Energy. 2020. Vol. 2020, no. 2020, pp.1-23.
https://search.emarefa.net/detail/BIM-1184074

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1184074