A NOVEL DESIGN METHOD FOR GROUND SOURCE HEAT PUMP

Abstract

This paper proposes a novel design method for ground source heat pump. The ground source heat pump operation is controllable by using several parameters, such as the total meters of buried pipe, the space between wells, the thermal properties of soil, thermal resistance of the well, the initial temperature of soil, and annual dynamic load. By studying the effect of well number and well space, we conclude that with the increase of the well number, the inlet and outlet water temperatures decrease in summer and increase in winter, which enhance the efficiency of ground source heat pump. The well space slightly affects the water temperatures, but it affects the soil temperature to some extent. Also the ground source heat pump operations matching with cooling tower are investigated to achieve the thermal balance. This method greatly facilitates ground source heat pump design.

Keywords

Dates

  • Submission Date2013-10-12
  • Revision Date2014-03-18
  • Acceptance Date2014-07-13
  • Online Date2015-01-04

DOI Reference

10.2298/TSCI1405661D

References

  1. Inalli, M., Esen, H., Experimental Thermal Performance Evaluation of a Horizontal Ground-Source Heat Pump System, Applied Thermal Engineering, 24 (2004), 14, pp. 2219-2232
  2. Stevens, J. W., Optimal Placement Depth for Air Ground Heat Transfer Systems, Applied Thermal Engineering, 24 (2004), 2-3, pp. 149-157
  3. Spitler, C., et al., A Transient Two-Dimensional Finite Volume Model for the Simulation of Vertical U-Tube Ground Heat Exchangers, ASHRAE Trans., 105 (1999), 2, pp. 465-474
  4. Mei, V. C., Baxter, V. D., Performance of a Ground-Coupled Heat Pump with Multiple Dissimilar U-Tube Coils in Series, ASHRAE Trans., 92 (1986), 2, pp. 22-25
  5. Omer, A. M., Ground-Source Heat Pumps Systems and Applications, Renewable and Sustainable Energy Reviews, 12 (2008), 2, pp. 344-371
  6. Yang, W. B., et al., A Two-Region Simulation Model of Vertical U-Tube Ground Heat Exchanger and Its Experimental Verification. Applied Energy, 10 (2009), 86, pp. 2005-2012
Volume 18, Issue 5, Pages1661 -1666