Theoretical energy and exergy analyses of solar assisted heat pump space heating system

• Published in: Thermal science 2014-01, Vol.18 (suppl.2), p.S417-S427
• Main Authors: Atmaca, Ibrahim, Kocak, Sezgi
• Format: Article
• Language: English
• Subjects: Accumulators; Alternative energy; Alternative energy sources; Collectors; Computer simulation; Exergy; Heat pumps; Power consumption; Simulation; Solar radiation; Space heating; Storage tanks
• ISSN: 0354-9836; 2334-7163
• DOI: 10.2298/TSCI120813024A

Due to use of alternative energy sources and energy efficient operation, heat pumps come into prominence in recent years. Especially in solar-assisted heat pumps, sizing the required system is difficult and arduous task in order to provide optimum working conditions. Therefore, in this study solar assisted indirect expanded heat pump space heating system is simulated and the results of the simulation are compared with available experimental data in the literature in order to present reliability of the model. Solar radiation values in the selected region are estimated with the simulation. The case study is applied and simulation results are given for Antalya, Turkey. Collector type and storage tank capacity effects on the consumed power of the compressor, COP of the heat pump and the overall system are estimated with the simulation, depending on the radiation data, collector surface area and the heating capacity of the space. Exergy analysis is also performed with the simulation and irreversibility, improvement potentials and exergy efficiencies of the heat pump and system components are estimated.