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http://dx.doi.org/10.7316/KHNES.2014.25.3.297

Performance of the Geothermal Heat Pump using Vapor Injection for Hot Water  

Park, Yong-Jung (R&D Center, Daihan Climate Control Co.)
Park, Byung-Duck (School of Automotive Engineering, Kyungpook National Univ.)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.25, no.3, 2014 , pp. 297-304 More about this Journal
Abstract
The purpose of this study is to evaluate the experimental performance characteristics of a water-to-water geothermal heat pump featuring a vapor refrigerant injection for the production of hot water. The performance of geothermal heat pump with a vapor injection was evaluated by comparing with that of a conventional geothermal heat pump without a vapor injection. For heating operation, the geothermal heat pump with a vapor injection is superior in COP and heating capacity. The vapor injection was more effective for supplying hot water while overloading. The vapor injection was effective for the improvement of the cooling capacity. However, the vapor injection was not effective for the increasing of COP according to the increased input of a compressor. The advantage of vapor injection in water-to-water geothermal heat pump become disappeared while cooling operation with lower part loading.
Keywords
Geothermal heat pump; Vapor injection; Heating capacity; Cooling capacity; COP;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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