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Impact of Design Parameters on Length and Application Effect of Surface Water Heat Exchanger(SWHE)
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Impact of Design Parameters on Length and Application Effect of Surface Water Heat Exchanger(SWHE)
Sohn, Byonghu; Min, Kyong-Chon;
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Commercial buildings are generally cooling-dominated and therefore reject more heat to a vertical ground heat exchanger(GHE) than they extract over the annual cycle. Shallow ponds can provide a cost-effective means to balance the thermal loads to the ground and to reduce the length of GHE. The objective of this work has been to develop a design tool for surface water heat exchanger(SWHE) submerged in shallow pond. This paper presents the analysis results of the impact of design parameters on the length of SWHE and its application effect on geothermal heat pump(GHP) system using vertical GHE. In order to analysis, We applied method on designing the length of SWHE. Analysis results show that the required pipe length of SWHE was decreased with the increase of approach temperature difference and with the decrease of pipe wall thickness. In addition, when the SWHE was applied to the GHP system, the temperature of vertical GHE was more stable than that of standalone GHE system.
Geothermal Heat Pump;Surface Water Heat Exchanger;Shallow Pond;Design Length;Application Effect;
 Cited by
Lund, J. W. and Boyd, T. L., 2015, "Direct Utilization of Geothermal Energy 2015 Worldwide Review," World Geothermal Congress 2015, Melbourne, Australia.

Sarbu, I. and Sebarchievici, C., 2014, "General Review of Ground-Source Heat Pump Systems for Heating and Cooling of Buildings," Energy and Buildings, Vol. 70, pp. 441-454. crossref(new window)

Kavanaugh, S., 1998, "A Design Method for Hybrid Ground-Source Heat Pump," ASHRAE Transactions, Vol. 104, pp. 691-698.

Kavanaugh, S. and Rafferty, K., 2014, Geothermal Heating and Cooling: Design of Ground-Source Heat Pump Systems, ASHRAE, Atlanta.

McCrary, B. H., Kavanaugh, S. P., and Williamson, D. G., 2006, "Environmental Impacts of Surface Water Heat Pump Systems," ASHRAE Transactions, Vol. 112, pp. 102-110.

Saha, R. K. and Sekulic, D. P., 2003, Fundamentals of Heat Exchanger, John Wiley&Sons, New Jersey.

Rogers, G. F. C. and Mayhew, Y. R., 1964, "Heat Transfer and Pressure Loss in Helically Coiled Tubes with Turbulent Flow," International Journal of Heat and Mass Transfer, Vol. 7, pp. 1207-1216. crossref(new window)

Churchill, S. W. and Chu, H. H. S., 1975, "Correlating Equations for Laminar and Turbulent Free Convection from a Horizontal Cylinder," International Journal of Heat and Mass Transfer, Vol. 18, pp. 1049-1053. crossref(new window)

Sohn, B. and Kwon, H. S., 2014, "Performance Prediction on the Application of a Ground-Source Heat Pump(GSHP) System in an Office Building," Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 26, No. 9, pp. 409-415. crossref(new window)

DesignBuilder Software, 2011, DesignBuilder V3.0

Gaia Geothermal, 2014, Ground Loop Design-Geothermal Design Studio User's Manual, Gaia Geothermal.