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U.S. Department of Energy
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Comparison of a thermoelectric cooling system and a groundwater heat pump

Conference ·
OSTI ID:5111573
The performance of a ground water thermoelectric (TE) heat pump system, based on today's state of the art TE materials, was calculated and compared with that of a conventional groundwater heat pump under the same water inlet temperature and flow rate. It was found that the TE system was quite competitive for cooling, particularly for groundwater temperatures below 19/sup 0/C (64/sup 0/F). The TE system performed poorly for heating mode operation. A cooling coefficient of performance (COP) of 6.4 could be realized by a properly designed TE system at a groundwater temperature of 13/sup 0/C (55/sup 0/F), compared with a COP of 4.35 for a conventional heat pump. For heating mode operation at the same water temperature, the TE system achieved a COP of 1.82, while the conventional heat pump performed at a COP of 3.72. TE systems for many buildings, where part of the areas require year-round cooling, can be a good alternative if groundwater of sufficiently low temperature is available.
OSTI ID:
5111573
Report Number(s):
CONF-871234-
Country of Publication:
United States
Language:
English