• Title/Summary/Keyword: Unutilized energy

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A Road Map of the Unutilized Energy Technology (미활용에너지기술 중장기 Road Map)

  • Lee, Young-Soo;Park, Jun-Taek;Baik, Young-Jin;Shin, Kwang-Ho
    • Proceedings of the SAREK Conference
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    • 2006.06a
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    • pp.203-208
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    • 2006

  • The unutilized energy in urban area is commercially and environmentally worth recycling since it can be used as a good energy resource for the heating and cooling supply. Therefore, once heating and cooling demands are near the available unutilized energy resources, a high performance district heating and cooling can be realized by the network of unutilized energy technology. In relation to this circumstance, a road map of the unutilized energy technology is presented in this study.

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Life-Cycle Analysis of the River Water Unutilized Energy System (LCC 분석에 의한 하천수 미활용에너지 이용시스템의 경제성 평가)

  • Park Il-Hwan;Yoon Hyung-Kee;Chang Ki-Chang;Park Jun-Taek;Park Seong-Ryong
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.17 no.6
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    • pp.596-604
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    • 2005

  • This paper presents the work on evaluating the LCC (Life-Cycle Cost) of a heat pump system as unutilized energy system. The river water as an unutilized energy source was used for the heat source of heat pump system. LCC analysis is a concrete method for evaluating the economical efficiency of energy facilities of building. The present case study shows an example of adequate use of the LCC analysis on a heat pump system and conventional gas boiler and refrigerator for building heat supply. A life cycle of 20 years was used to calculated net present value of energy cost. Over a 20 year life cycle, the energy cost could be reduced by 612 million won if a heat pump system were used instead of a conventional boiler and an absorption refrigerator.

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