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http://dx.doi.org/10.17664/ksgee.2016.12.2.013

Feasibility Study on Retrofitting Lighting and Heat Source Equipments in Office Buildings  

Lee, Chul-goo (Department of Architectural Engineering, Semyung University)
Kim, Jong-dae (Kyeryong Construction Industrial)
Im, Tae-soon (Kyeryong Construction Industrial)
Publication Information
Journal of the Korean Society for Geothermal and Hydrothermal Energy / v.12, no.2, 2016 , pp. 13-18 More about this Journal
Abstract
Energy saving has been main concern, thus government supporting policies which are based on Fundamentals of Low-carbon Green Growth Act', 'Green Building Support Act, have been prepared in Korea. The objective of this study is to estimate energy conservation effectiveness and economic advantage assuming that lighting equipments and heat source equipments would be retrofitted. Office building, which has total floor area of $30,000m^2$, was a subject of this study. From the estimations, electric rate will be decreased by 62,886,000 won per year due to lighting equipments retrofit, and gas rate will be decreased 11,141,000 won or 17,332,000 won per year due to heat source equipments retrofit (in case of COP 1.2 or 1.5). Payback period of each case that are calculated by energy saving cost and retrofit cost are estimated 27.9 year, 38.6 year and 29.2 year, thus economic supporting policies is necessary for effective energy saving in buildings. Meanwhile payback period of heat source equipment for new building is estimated 6.1 year and 8.3 year.
Keywords
Energy saving; High efficiency apparatus; Economic evaluation; Payback period;
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  • Reference
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