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http://dx.doi.org/10.6110/KJACR.2011.23.6.392

Performance Simulation of Ground-Coupled Heat Pump(GCHP) System for a Detached House  

Sohn, Byong-Hu (Plant Research Division, Korea Institute of Construction Technology)
Choi, Jong-Min (Department of Mechanical Engineering, Hanbat National University)
Choi, Hang-Seok (School of Civil, Environmental and Architectural Engineering, Korea University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.23, no.6, 2011 , pp. 392-399 More about this Journal
Abstract
Ground-coupled heat pump(GCHP) systems have been shown to be an environmentally-friendly, efficient alternative to traditional cooling and heating systems in both residential and commercial applications. Although some work related to performance evaluation of GCHP systems for commercial buildings has been done, relatively little has been reported on the residential applications. The aim of this study is to evaluate the cooling and heating performances of a vertical GCHP system applied to an artificial detached house($117\;m^2$) in Seoul. For this purpose, a typical design procedure was involved with a combination of design parameters such as building loads, heat pump capacity, borehole diameter, and ground thermal properties, etc. The cooling and heating performance simulation of the system was conducted with different prediction times of 8760 hours and 240 months. The performance characteristics including seasonal system COP, average annual power consumption, and temperature variations related to ground heat exchanger were calculated and compared.
Keywords
Ground-coupled heat pump; Vertical ground heat exchanger; Detached house; Hourly performance simulation; Monthly performance simulation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Remund, C. P., 1999, Borehole thermal resistance : laboratory and field studies, ASHRAE Transactions, Vol. 105, pp. 439-445.
2 Akpinar, E. K. and Hepbasli, A., 2007, A comparative study on exergetic assessment of two ground-source(geothermal) heat pump systems for residential applications, Building and Environment, Vol. 42, pp. 2004-2013.   DOI   ScienceOn
3 Sohn, B. H., Cho, C. S., Shin, H. J. and An, H. J., 2005, Cooling and heating performance evaluation of a GSHP system, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 17, No. 1, pp. 71-81.
4 Kim, B. S., 2009, The energy performance analysis of ground heat sources heat pump system installed in green home, Journal of the Architectural Institute of Korea, Vol. 25, No. 9, pp. 339-346.
5 Shonder, J. A., Baxter, V., Thornton, J. and Hughes, P., 1999, A new comparison of vertical ground heat exchanger design methods for residential applications, ASHRAE Transactions, Vol. 105, pp. 1179-1188.
6 Yavuzturk, C. and Spitler, J. D., 1999, A short time step response factor model for vertical ground loop heat exchangers, ASHRAE Transactions, Vol. 105, pp. 475-485.
7 Kavanaugh, S. P. and Rafferty, K., 1997, Ground- Source Heat Pumps:Design of Geothermal Systems for Commercial and Institutional Buildings, American Society of Heating, Refrigerating and Air-conditioning Engineers(ASH RAE), Atlanta, US.
8 Eskilson, P., 1987, Thermal analysis of heat extraction boreholes, Doctoral thesis, University of Lund, Sweden.
9 Pahud, D. and Hellstrom, G., 1996, The new duct ground model for TRNSYS, Eurotherm Seminar, Eindhoven, Netherlands, Vol. 49 pp. 127-136.
10 Yavuzturk, C. and Spitler, J. D., 2001, Field validation of a short time step model for vertical ground loop heat exchangers, ASHRAE Transactions, Vol. 107, pp. 617-625.
11 MKE/KEEI, 2008, Yearbook of Energy Statics, Report of Ministry of Knowledge Economy/Korea Energy Economics Institute, ISSN 1226-606X.