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Initial Commissioning of a Water-to-Water GHP System in KIER

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dc.creator Kim, J. en_US
dc.creator Jang, J.C. en_US
dc.creator Kang, E.C. en_US
dc.creator Chang, K.C. en_US
dc.creator Lee, E.J. en_US
dc.creator Kim, Y. en_US
dc.date.accessioned 2012-02-27T17:00:34Z
dc.date.available 2012-02-27T17:00:34Z
dc.date.issued 2011 en_US
dc.identifier.other ESL-IC-11-10-07 en_US
dc.identifier.uri http://hdl.handle.net/1969.1/128849
dc.description.abstract GHP(Geothermal Heat Pump) system has been extensively disseminated due to the recent increasing demand of the new and renewable energy in Korea. However, the system reliability issues have been key barriers to ensure system performance as initially designed. This paper introduces a systematic method to verify its actually operating performance of a water to water GHP system. The main idea is to compare the actual performance with the manufacture data and then to reduce the gap between the actual and the manufacture data. The key result of this study is the development of a simplified GHP performance verification technique using the ISO standard based manufacture data. The manufacture performance data includes the information of EWT(entering water temperature), LWT(leaving water temperature), capacity, flow rate, power and COP. This technique has been verified to a w to w GHP system designed and installed at KIER site. The verification study showed that actual performance was lower than Manufacture data. And then the refrigerant was recharged and the compressor and the expansion valve were replaced. As a result, we can easily identify the GHP system problems and heating and cooling COP has been increased 25.26%, 18.24%. en_US
dc.publisher Energy Systems Laboratory (http://esl.tamu.edu) en_US
dc.publisher Texas A&M University (http://www.tamu.edu) en_US
dc.subject GHP, Manufacture Performance data, Performance verification, COP, ISO 13256- 2. en_US
dc.title Initial Commissioning of a Water-to-Water GHP System in KIER en_US
dc.contributor.sponsor Korea Institute of Energy Research, Korea University. en_US

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