Simulation of Ground Source Heat Pump Systems

Investigators: J.D. Spitler, S.J. Rees

Students: C. Yavuzturk, A. Chiasson, M. Ramamurthy, H. Jin

Description: For several years, we have been developing models for ground loop heat exchangers, heat pumps, and other related components. These models are aimed at being used in component-based modular simulation environments such as TRNSYS or HVACSIM+. The ground loop heat exchanger model is capable of accounting for short (1 hour or less) time-step effects, while also accounting for very long-term (30 years+) borehole interactions.
Much of this work was funded by the U.S. Department of Energy. Six-page summaries of work done in 1998 and 1999 are available.

Publications:

Andrew Chiasson's M.S. thesis

Cenk Yavuzturk's Ph.D. thesis.

Zheng Deng's Ph.D. thesis

Mohammad Haider Khan M.S. thesis

Hui Jin Ph.D. thesis

Ray Young M.S. thesis

Xiaobing Liu Ph.D. Thesis

Khan, M.H., J.D. Spitler. 2004. Performance Analysis of a Residential Ground Source Heat Pump System with Antifreeze Solution. Proceedings of SimBuild 2004, Boulder, Colorado August 4-6.

Rees, S.J., J.D. Spitler, Z. Deng, C.D. Orio and C.N. Johnson. 2004. A Study Of Geothermal Heat Pump And Standing Column Well Performance. ASHRAE Transactions, 110(1):3-13.

Jin, H. and J.D. Spitler. 2003. "Parameter Estimation Based Model of Water-to-Water Heat Pumps with Scroll Compressors and Water/Glycol Solutions." Building Services Engineering Research and Technology. 24(3):203-219.

Spitler, J.D. and C. Underwood. 2003. UK Application of Direct Cooling Ground Source Heat Pump Systems. Accepted for publication in the Proceedings of ASHRAE-CIBSE Conference, Edinburgh, Scotland, September 24-26, 2003.

Khan, M.H., A. Varanasi, J.D. Spitler, D.E. Fisher, R.D. Delahoussaye. 2003. Hybrid Ground Source Heat Pump System Simulation Using Visual Modeling Tool For Hvacsim+. Proceedings of Building Simulation 2003 pp. 641-648. Eindhoven, Netherlands, August 11-14, 2003.

Spitler, J.D., X. Liu, S.J. Rees, and C. Yavuzturk. 2003. "Simulation and Design of Ground Source Heat Pump Systems" Journal of Shandong University of Architecture and Engineering". 18(1): 1-10.

Jin, H. and J.D. Spitler. 2002. Parameter Estimation Based Model of Water-to-Water Heat Pumps with Scroll Compressors and Water/Glycol Solutions. Presented at the 6th International Conference on System Simulation in Buildings, Liége, Belgium. December 16-18, 2002.

Bose, J.E., M.D. Smith, J.D. Spitler. 2002. Advances in Ground Source Heat Pump Systems - An International Overview. Proceedings of the Seventh International Energy Agency Heat Pump Conference. 1:313-324. Beijing. May 19-22, 2002.

Jin, H. And J.D. Spitler. 2002. A Parameter Estimation Based Model of Water-To-Water Heat Pumps for use in Energy Calculation Programs. ASHRAE Transactions. 108(1):3-17.

Yavuzturk, C., J.D. Spitler. 2001. Field Validation of a Short Time-Step Model for Vertical Ground Loop Heat Exchangers. ASHRAE Transactions, 107(1):617-625.

Ramamoorthy, M. H. Jin, A. Chiasson, J.D. Spitler. 2001. Optimal Sizing of Hybrid Ground-Source Heat Pump Systems that use a Cooling Pond as a Supplemental Heat Rejecter – A System Simulation Approach. ASHRAE Transactions. 107(1):26-38.

Chiasson, A.D., J.D. Spitler, S.J. Rees, M.D. Smith. 2000. A Model For Simulating The Performance Of A Shallow Pond As A Supplemental Heat Rejecter With Closed-Loop Ground-Source Heat Pump Systems. ASHRAE Transactions. 106(2):107-121.

Yavuzturk, C., J.D. Spitler. 2000. Comparative Study to Investigate Operating and control Strategies for Hybrid Ground Source Heat Pump Systems Using a Short Time-step Simulation Model. ASHRAE Transactions. 106(2):192-209.

Chiasson A.D., J.D. Spitler, S.J. Rees, and M.D. Smith. 2000. A Model for Simulating the Performance of a Pavement Heating System as a Supplemental Heat Rejecter With Closed-Loop Ground-Source Heat Pump Systems. ASME Journal of Solar Energy Engineering. November 2000. 122:183-191

Spitler J.D., S.J. Rees, and C. Yavuzturk. 2000. Recent Developments in Ground Source Heat Pump System Design, Modelling and Applications. Proc. of CIBSE/ASHRAE joint conference "20 20 Vision", Dublin, September 2000. Session 9a, Paper A28, p.34.

Yavuzturk, C., J.D. Spitler. 2000. Comparative Study to Investigate Operating and Control Strategies for Hybrid Ground Source Heat Pump Systems Using a Short Time-step Simulation Model. ASHRAE Transactions. 106(2):192-209.

Yavuzturk, C., J.D. Spitler. 1999. A Short Time Step Response Factor Model for Vertical Ground Loop Heat Exchangers. ASHRAE Transactions. 105(2):475-485.

Yavuzturk, C., S.J. Rees and J.D. Spitler. 1999. A Transient Two-dimensional Finite Volume Model of a Ground Loop Heat Exchanger, ASHRAE Transactions. 105(2):465-474.