Optimization of cross flow heat exchangers for thermoelectric waste heat recovery

Thermoelectric waste heat recovery is investigated for current thermoelectric materials with advanced heat exchangers. Numerical heat exchanger models integrated with models for Bi 2Te 3 thermoelectric modules are validated against experimental data from previous cross flow heat exchanger studies as...

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Published in:Energy conversion and management 2004-06, Vol.45 (9), p.1565-1582
Main Authors: Crane, Douglas T., Jackson, Gregory S.
Format: Article
Language:English
Subjects:
Applied sciences
Devices using thermal energy
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Heat exchanger
Heat exchangers (included heat transformers, condensers, cooling towers)
Optimization
Power generation
Thermoelectric
Waste heat recovery
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description Thermoelectric waste heat recovery is investigated for current thermoelectric materials with advanced heat exchangers. Numerical heat exchanger models integrated with models for Bi 2Te 3 thermoelectric modules are validated against experimental data from previous cross flow heat exchanger studies as well as experiments using thermoelectrics between counterflow hot water and cooling air flow channels. The models are used in optimization studies of thermoelectric waste heat recovery with air cooling in a cross flow heat exchanger. Power losses from an air fan and a fluid pump result in an optimal configuration at intermediate cooling air and hot fluid flows. Results show that heat exchangers with Bi 2Te 3 thermoelectrics can achieve net power densities over 40 W/l.
doi_str_mv 10.1016/j.enconman.2003.09.003
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source ScienceDirect Journals
subjects Applied sciences
Devices using thermal energy
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Heat exchanger
Heat exchangers (included heat transformers, condensers, cooling towers)
Optimization
Power generation
Thermoelectric
Waste heat recovery
title Optimization of cross flow heat exchangers for thermoelectric waste heat recovery
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