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http://dx.doi.org/10.6110/KJACR.2015.27.1.031

Heating Performance of Geothermal Heat Pump System Applied in Cold Climate Region(Mongolia)  

Sohn, Byonghu (Green Building Research Division, Korea Institute of Construction Technology)
Choi, Jae Ho (Research Development Division, KOTEC Engineering)
Min, Kyung Chon (Research Development Division, KOTEC Engineering)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.27, no.1, 2015 , pp. 31-38 More about this Journal
Abstract
Geothermal heat pump (GHP) systems have become an efficient alternative to conventional cooling and heating methods due to their higher energy using efficiency. These systems use the ground as a heat source in heating mode operation and a heat sink in cooling mode operation. The aim of this study is to evaluate the heating performance of the GHP system for a residential building ($420m^2$) in Ulaanbaatar, Mongolia. In order to demonstrate the feasibility of a sustainable performance of this system, we installed the water-to-water geothermal heat pump with ten vertical ground heat exchangers and measured operation parameters from October 19, 2013 to March 26, 2014. The results showed that the entering source temperature of brine from the ground heat exchangers was in a range of the design target temperature of $-10^{\circ}C$ for heating. For total values of the representative results, the ground heat exchangers extracted heat of 53.51 MWh from the ground. In addition, the GHP system supplied heat of 83.55 MWh to the building and consumed power of 30.27 MWh. Consequently, the average heating seasonal performance factor ($SPF_h$) of the overall system was evaluated to be 2.76 during the measurement period of the heating season.
Keywords
Geothermal heat pump system; Heating performance; Residential building; Cold climate region; Mongolia;
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Times Cited By KSCI : 3  (Citation Analysis)
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1 Wu, W., Wang, B., You, T., Shi, W., and Li, X., 2013, A potential solution for thermal imbalance of ground source heat pump systems in cold regions : Ground source absorption heat pump, Renewable Energy, Vol. 59, pp. 39-48.   DOI
2 GECF, 2012, Replacement of coal-fired boiler by geothermal heat pump for heating, Report of Feasibility Study on New Mechanism Project, Global Environment Centre Foundation (GECF), Japan.
3 Gaia Geothermal, 2012, Ground loop design geothermal design studio user's manual, Gaia Geothermal.
4 Kline, S. J., 1985, The purpose of uncertainty analysis, ASME Journal of Fluids Engineering, Vol. 107, pp. 153-160.   DOI
5 Yang, J., Xu, L., Hu, P., Zhu, N., and Chen, X., 2014, Study on intermittent operation strategies of a hybrid ground-source heat pump system with doublecooling towers for hotel buildings, Energy and Buildings, Vol. 76, pp. 506-512.   DOI
6 Zhai, X. Q., Qu, M., Yu, X., Yang, Y., and Wang, R. Z., 2011, A review for the applications and integrated approaches of ground-coupled heat pump systems, Renewable and Sustainable Energy Reviews, Vol. 15, No. 6, pp. 3133-3140.   DOI
7 Energy Charter, 2011, In-depth review of energy efficiency policies and programmes : Mongolia, Energy Charter Secretariat, Brussels, Belgium.
8 Guttikunda, S. K., Lodoysamba, S., Bulgansaikhan, B., and Dashdondog, B., 2013, Particulate pollution in Ulaanbaatar, Mongolia, Air Quality, Atmosphere and Health, Vol. 6, No. 3, pp. 589-601.   DOI
9 Sohn, B., 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.   과학기술학회마을
10 Hahn, J. S., Yoon, Y. S., Yoon, K. S., Lee, T. Y., and Kim, H. S., 2012, A study on development potential of shallow geothermal energy as space heating and cooling sources in Mongolia, Transactions of the Korea Society of Geothermal Energy Engineers, Vol. 8, No. 2, pp. 36-47.   과학기술학회마을
11 Sohn, B., Choi, J. M., and Choi, H. S., 2011, Performance simulation of ground-coupled heat pump (GCHP) system for a detached house, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 23, No. 6, pp. 392-399.   과학기술학회마을   DOI
12 Montagud, C., Corberan, J. M., Montero, A., and Urchueguia, J. F., 2011, Analysis of the energy performance of a ground source heat pump system after five years of operation, Energy and Buildings, Vol. 43, No. 12, pp. 3618-3626.   DOI
13 Bakirci, K., 2010, Evaluation of the performance of a ground-source heat pump system with series GHE (ground heat exchanger) in the cold climate region, Energy, Vol. 35, Vol. 7, pp. 3088-3096.   DOI
14 Bakirci, K., Ozyurt, O., Comakli, K. and Comakli, O., 2011, Energy analysis of a solar-ground source heat pump system with vertical closed-loop for heating applications, Energy, Vol. 36, No. 5, pp. 3224-3232.   DOI
15 Ozyurt, O. and Ekinci, D. A., 2011, Experimental study of vertical ground-source heat pump performance evaluation for cold climate in Turkey, Applied Energy, Vol. 88, No. 4, pp. 1257-1265.   DOI