Title: Thermodynamic analysis and assessment of space heating with ground-source heat pump for sustainable future

Authors: Murat Ozturk; Ahmet Elbir; Nuri Ozek; Ali Kemal Yakut

Addresses: Department of Physics, Faculty of Art and Sciences, Suleyman Demirel University, 32260 Isparta, Turkey ' Department of Mechanical Education, Technical Education Faculty, Suleyman Demirel University, 32260 Isparta, Turkey ' Department of Physics, Faculty of Art and Sciences, Suleyman Demirel University, 32260 Isparta, Turkey ' Department of Mechanical Education, Technical Education Faculty, Suleyman Demirel University, 32260 Isparta, Turkey

Abstract: In this paper, the thermodynamic modelling of exergy loss, exergy efficiency, exergy destruction rate, environmental destruction coefficient, improvement potential, exergy destruction factor, relative irreversibility, productivity lack and exergetic factor of ground source heat pump (GSHP) system are investigated. The results show that these exergy indexes should be used integratively. Compressor has the maximum exergy destruction rate, followed by the condenser and ground heat exchanger. Exergy efficiencies are obtained as 54.54% and 38.52% for the GSHP unit and whole system, respectively. Related parametric studies concerning about exergy destruction rate and exergy efficiency of the system components are carried out at different ambient temperatures.

Keywords: ground source heat pumps; exergy analysis; sustainable development; sustainability; thermodynamics; space heating; thermodynamic modelling; exergy destruction rate; exergy efficiency.

DOI: 10.1504/IJEX.2012.049093

International Journal of Exergy, 2012 Vol.11 No.1, pp.52 - 68

Received: 19 Oct 2011
Accepted: 01 Apr 2012
Published online: 13 Sep 2012 *

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