Economic Analysis of Heat Pump Recovery System for Circulating Water Waste Heat in Power Plant

The use of heat pump technology to recover the waste heat of circulating water from the power plant instead of steam extraction for heating can not only improve the thermal efficiency of the unit and reduce the loss of cold source, but also has great advantages in energy saving. This paper uses abso...

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Bibliographic Details
Published in:E3S web of conferences 2021-01, Vol.256, p.2011
Main Authors: Wang, Ze, Shen, Honghong, Gu, Qunyin, Wen, Daoyuan, Liu, Gang, Gao, Weijun, Ren, Jianxing
Format: Article
Language:English
Subjects:
Absorption
Compression
Economic analysis
Energy
Energy conservation
Heat exchangers
Heat pumps
Heating load
Plant extracts
Power plants
Steam electric power generation
Thermodynamic efficiency
Waste heat
Waste heat recovery
Water circulation
Water conservation
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Summary:The use of heat pump technology to recover the waste heat of circulating water from the power plant instead of steam extraction for heating can not only improve the thermal efficiency of the unit and reduce the loss of cold source, but also has great advantages in energy saving. This paper uses absorption and compression heat pumps to recover the waste heat of circulating water in the power plant to study its energy-saving benefits. Under the same heating load, the economics of the two heat pumps are calculated and analyzed. The results show that the energy-saving benefits of absorption heat pump units are far greater than compression units. But in terms of water saving, the water saving capacity of the compression heat pump unit is higher than that of the absorption heat pump.
ISSN:2267-1242
2555-0403
2267-1242
DOI:10.1051/e3sconf/202125602011