Abstract
This work established a thermodynamic performance model of a heat pump system containing a heat pump unit model, an air conditioning cooling and heating load calculation model, a heat exchanger model and a water pump performance model based on mass and energy balances. The thermodynamic performance of a surface water source heat pump air conditioning system was simulated and verified by comparing the simulation results to an actual engineering project. In addition, the effects of the surface water temperature, heat exchanger structure and surface water pipeline transportation system on the thermodynamic performance of the heat pump air conditioning system were analyzed. Under the simulated conditions in this paper with a cooling load of 3400 kW, the results showed that a 1 °C decrease in the surface water temperature leads to a 2.3 percent increase in the coefficient of performance; furthermore, an additional 100 m of length for the closed-loop surface water heat exchanger tube leads to a 0.08 percent increase in the coefficient of performance. To decrease the system energy consumption, the optimal working point should be specified according to the surface water transportation length.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Allen J, Hamilton (1983). Steady-state reciprocating water chiller models. ASHRAE Transactions, 89(2A): 398–407.
Bourdouxhe JH, Grodent M, Lebrun JL (1994). A toolkit for primary HVAC system energy calculation—Part 2: reciprocating chiller models. ASHRAE Transactions, 100(2): 774–786.
Cleland AC (1986). Computer subroutines for rapid evaluation of refrigeration thermodynamic properties. International Journal of Refrigeration, 9: 346–351.
Chen RD (2006). Refrigeration Technology and Application. Shanghai: Tongji University Press. (in Chinese)
Hamilton JM, Miller JL (1990). A simulation program for modeling an air-conditioning system. ASHRAE Transactions, 96(1): 213–221.
Li PX, Rong WG (2003). Study of the characteristics of compressor in waster source heat pump set under variant operating conditions, Refrigeration and Air Condition, 3(2): 1–4. (in Chinese)
Long J, Huang S (2014). Study on energy efficiency evaluation method of cooling water system of surface water source heat pump. Lecture Notes in Electrical Engineering, 262: 333–340.
Lu S, Cai Z, Zhang L, Li Y (2014). Evaluation of the performance of a centralized ground-water heat pump system in cold climate region. Frontiers in Energy, 8: 394–402.
Jin H (2002). Parameter estimation based on model of water source heat pumps. PhD Thesis, Oklahoma State University, USA.
Jie JH (1994). Simplified calculation of horizontal shell and tube condenser. Fluid Machinery, 9(22): 61–63. (in Chinese)
Si P, Li A, Rong X, Feng Y, Yang Z, Gao Q (2015). New optimized model for water temperature calculation of river-water source heat pump and its application in simulation of energy consumption. Renewable Energy, 84: 65–73.
Stefanuk NBM, Aplevich JD, Renksizbulut M (1992). Modeling and simulation of a superheat-controlled water to water heat pump. ASHRAE Transactions, 98(2): 172–184.
Wu YZ (2006). The Principle and Equipment of Refrigeration. Xi’an: Xi’an Jiaotong University Press. (in Chinese)
Yang SM, Tao WX (2006). Heat Transfer. 4th edn. Beijing: Higher Education Press. (in Chinese)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Lv, N., Zhang, Q., Chen, Z. et al. Simulation and analysis on thermodynamic performance of surface water source heat pump system. Build. Simul. 10, 65–73 (2017). https://doi.org/10.1007/s12273-016-0308-1
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12273-016-0308-1