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http://dx.doi.org/10.6110/KJACR.2014.26.2.055

An Experimental Study on a Heat Pump with Dehumidification Function that Utilizes Underground Air Heat  

Ko, Ji-Woon (Department of Mechanical Engineering, Graduate School, Jeju National University)
Park, Youn Cheol (Department of Mechanical Engineering, Jeju National University)
Ko, Gwang-Soo (Department of Mechanical Engineering, Graduate School, Jeju National University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.26, no.2, 2014 , pp. 55-60 More about this Journal
Abstract
The present study has been conducted to develope a heating system for a green house with heat from underground air at Jeju Island. The temperature of the air deposited in the underground is $16{\sim}18^{\circ}C$ throughout the year, and it also has a large amount of moisture. Therefore, the air could not directly used for the heating of a green house. In this study, a heat pump with dehumidification function has been developed, which consisted of three evaporators, where the moisture removal occurs, accompanied by temperature drop. The dropped temperature is recovered, while passing through a series condenser. The air temperature increased from $17^{\circ}C$ to 35 with a 2.1 kg/h of moisture removal rate. The developed system moisture removal performance shows 0.91 kg/kWh.
Keywords
Underground air heat; Heat pump; Dehumidification; Multi condenser; Multi evaporator;
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  • Reference
1 Smith, G., White, S., and Han, J. C., 1984, Heat transfer and friction in channels with two opposite rib-roughened walls, ASME J. Heat Transfer, Vol. 106, pp. 774-781.   DOI
2 Taslim, M. E. and Spring, S. D., 1988, An investigation of heat transfer coefficients in duct, Proceedings, ASME 25th Heat Transfer Conference, Houston, pp. 461-479.
3 Mills, A. F., 1992, Heat Transfer, 4th ed., McGraw-Hill, New York, pp. 333-351.
4 Martin, T. J., 1990, Compact Condenser and Evaporator Design, GE Report A-1-20.
5 Jacobi, A. M., 1992, The Intertube Falling Film, Ph.D. thesis, University of Minnesota, Minneapolis, MN, U.S.A.
6 Hong, M. K., 1995, Study on turbulent flow in a duct, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 18, No. 6, pp. 507-514.
7 Lee, M. R. and Park, M. K., 1997, Heat transfer characteristics in a ribbed duct, Proceedings of the SAREK, pp. 110-117.
8 Kim, C. K., 1992, Heat and Mass Transfer, 6th Ed., Hankuk Inc., p. 542.
9 Im, K. J. and Hong, K. D., 1997, Study on compact condensers and evaporators, Report of Hankuk Inc., RP 97-001.
10 Lee, Y. S., 1992, Study on heat transfer characteristics of R-22, MS thesis, Hankuk University, Seoul, Korea.
11 Seo, J. N., Kim Y. G., and Park, S. T., 2010, A cycle analysis for studying of the effect of inlet condition regeneration condition and rotor rate on hybrid dehumidifier, Proceedings of SAREK 2010 Summer Annual Conference, pp. 1018-1022.