The Performance Test and the Feasibility Study for a Dual-Source Heat Pump System Using the Air and Ground Heat Source (공기 및 지열 이용 Dual-Source 히트펌프 시스템의 성능실험 및 경제성 분석)
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- Korean Journal of Air-Conditioning and Refrigeration Engineering
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- v.26 no.5
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- pp.212-217
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- 2014