Experimental and Parametric Analysis of a Thermoelectric Refrigerator
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Date
2020
Authors
Onoroh, F.
Ogbonnaya, M.
Ezenwa, O.N.
Odubiyi, E.O.
Journal Title
Journal ISSN
Volume Title
Publisher
International Journal of Innovation and Sustainable Development
Abstract
The adverse effects of refrigerants used in vapour compression
refrigeration systems (VCRS) on the environment necessitated that alternative
ways of cooling to be explored. Thermoelectric refrigeration systems
can be used for cooling without the use of refrigerants. In this study, a cascade
comprising of eight thermoelectric modules were used to reduce the
temperature of a fourteen litre refrigeration chamber from 28.7°C to 3°C
after 4 h. Parametric analysis was carried out to evaluate the performance of the
refrigerator. At a temperature gradient of 20°C the coefficient of performance
(C.O.P) was 0.55, while at a temperature gradient of 60°C the C.O.P was
0.25 at 6A. At the designed condition, a C.O.P of 0.34 was obtained. The result
of the simulation shows that optimum performance of a thermoelectric
refrigerator would be obtained when the temperature gradient between the hot
and cold sides of the thermoelectric module is kept to a minimum.
Description
Keywords
Coefficient of Performance , Thermoelectric , Modules , Temperature , Refrigeration Chamber , Peltier Effect , Module Resistance , Module Conductance , Cooling Load , Temperature Gradient