• Title/Summary/Keyword: Solar-absorption Heat Pump

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An Analysis of Energy Savings on the Solar-Absorption Heat Pump Systems for the Residential Use with the consideration of Annual Performance (연간 성능을 고려한 가정용 태양열-흡수식 히트펌프의 에너지 절약효과 분석)

  • Lee, J.H.;Lee, K.S.;Won, S.H.;Lee, M.H.
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.3 no.4
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    • pp.263-275
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    • 1991
  • Studies on the annual performance of three different type of solar-absorption heat pump system (parallel type, series type, and generator type) are carried out by using the computer simulation. These include the calculation of solar energy from the solar collector, and the revision of computer package, developed by Oak Ridge National Laboratory, to predict the annual performance. Finally using weather data and load conditions, the annual performance are obtained. Results show that the annual operating costs of three solar-absorption heat pump systems are almost same values and 44% lower than that of the pure absorption heat pump system. The total annual input energys of solar-absorption heat pump systems are also about 44% lower than that of the pure absorption heat pump. The nominal size of the solar-absorption heat pump systems can be reduced to a value of 55% that of the pure absorption heat pump that would normally be specified under identical conditions.

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Analysis of Thermodynamic Design Data for Heating of Double - Effect Solar Absorption System using LiBr - water and Ethylene Glycol Mixture (에틸렌글리콜 혼합액을 사용하고, 태양열을 보조열원으로 하는 이중효용 흡수식 시스템의 난방 특성해석)

  • Won, S.H.
    • Journal of the Korean Solar Energy Society
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    • v.22 no.4
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    • pp.51-61
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    • 2002
  • Analysis of thermodynamic design data of double effect solar absorption heat pump system for heating has been done to find the property of Libr-water + ethylene Glycol mixture for working fluid by computer simulation. Derived thermodynamic design data. enthalpy based coefficient of performance and flow ratio for possible combinations of operating temperature for water - LiBr and Ethylene Glycol mixture (H2O: CHO ratio 10:1 by mole) by computer simulation. The obtained results, COP and mass flow ratio of the water-lithium bromide-ethylene glycol system, are compared with data for the water-Libr pair solution.