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http://dx.doi.org/10.3795/KSME-B.2014.38.9.721

Thermoeconomic Analysis of Hybrid Desiccant Cooling System Driven by District Heating  

Ahn, Joon (School of Mechanical Systems Engineering, Kookmin Univ.)
Kim, Jaeyool (Dept. of Mechanical Engineering, Graduate School, Kookmin Univ.)
Kang, Byung Ha (School of Mechanical Systems Engineering, Kookmin Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.38, no.9, 2014 , pp. 721-729 More about this Journal
Abstract
A hybrid desiccant cooling system (HDCS) that uses a heat pump driven by district heating instead of a sensible rotor can provide an increased energy efficiency in summer. In this paper, the summer operation costs and initial costs of both the HDCS and traditional systems are analyzed using annual equal payments, and national benefits are found from using the HDCS instead of traditional systems. In the analysis results, the HDCS reduces the operation cost by 30 compared to the traditional systems, and each HDCS unit has 0.079 TOE per year of primary energy savings and 0.835 $TCO_2$ per year of $CO_2$ emission reduction more than the traditional systems. If HDCSs were to be installed in 680,000 households by 2020, this would produce a replacement power effect of 463 MW. Despite this savings effect, HDCSs require a government subsidy before they can be supplied because the initial cost is higher than that of traditional systems. Thus, this paper calculates suitable subsidies and suggests a supply method for HDCSs considering the national benefits.
Keywords
Hybrid Desiccant Cooling System; Economic Analysis; District Heating; Energy Efficiency;
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Times Cited By KSCI : 5  (Citation Analysis)
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