Author
Now showing items 1-8 of 8
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A key review of wastewater source heat pump (WWSHP) systems
Hepbasli, A.; Biyik, E.; Ekren, O.; Gunerhan, H.; Araz, M. (Energy Conversion and Management, 2014)Heat pumps (HPs) are part of the environmentally friendly technologies using renewable energy and have been utilized in the developed countries for years. Wastewater is seen as a renewable heat source for HPs. At the ... -
Design of microcontroller-based decentralized controller board to drive chiller systems using PID and fuzzy logic algorithms
Isler, Y.; Sahin, S.; Ekren, O.; Guzelis, C. (Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 2020)This study deals with designing a decentralized multi-input multi-output controller board based on a low-cost microcontroller, which drives both parts of variable-speed scroll compressor and electronic-type expansion valve ... -
Experimental exergetic performance evaluation of a novel solar assisted LiCl-H2O absorption cooling system
Gunhan, T.; Ekren, O.; Demir, V.; Hepbasli, A.; Erek, A.; Sahin, A.S. (Energy and Buildings, 2014)This study proposes a novel solar assisted absorption cooling (SAAC) system and performs its exergetic analysis and assessment. The system was designed, constructed and tested in Izmir, Turkey. Water was used as refrigerant ... -
Heat exchanger applications in wastewater source heat pumps for buildings: A key review
Culha, O.; Gunerhan, H.; Biyik, E.; Ekren, O.; Hepbasli, A. (Energy and Buildings, 2015)Abstract Wastewater heat recovery applications are becoming widespread in energy saving applications. A sustainable and low emissions operation in air conditioning and heating processes is achieved by harvesting the otherwise ... -
Numerical analysis of a near-room-temperature magnetic cooling system [Analyse numérique d'un système de froid magnétique proche de la température ambiante]
Ezan, M.A.; Ekren, O.; Metin, C.; Yilanci, A.; Biyik, E.; Kara, S.M. (International Journal of Refrigeration, 2017)In this study, for a near-room-temperature magnetic cooling system, a decoupled multi-physics numerical approach (Magnetism, Fluid Flow, and Heat Transfer) is developed using a commercial CFD solver, ANSYS-FLUENT, as a ... -
Performance Assessment of a Near Room Temperature Magnetic Cooling System
Ekren, O.; Yilanci, A.; Ezan, M.A.; Kara, M.; Biyik, E. (Energy Procedia, 2017)In this study, performance of a near room temperature magnetic cooling system was investigated experimentally in terms of temperature span. The current setup has a permanent magnet pairs (0.7 Tesla), a magnetocaloric ... -
Performance evaluation of a building integrated photovoltaic (BIPV) system combined with a wastewater source heat pump (WWSHP) system
Araz, M.; Hepbasli, A.; Biyik, E.; Shahrestani, M.; Yao, R.; Essah, E.; Shao, L.; Oliveira, A.C.; Ekren, O.; Gunerhan, H. (Energy Procedia, 2017)This paper deals with both energetic and exergetic performance assessments of two combined systems as a whole. The first one is a Building Integrated Photovoltaic (BIPV) system while the second one is a wastewater (WW) ... -
Radiant Heating-cooling Performance Assessment in a Shopping Center in Sopron, Hungary
Ekren, O.; Hepbasli, A.; Biyik, E. (Energy Procedia, 2017)In this study, performance of a radiant heating-cooling via air source heat pump was investigated. This study is part of a project funded by European Union's FP7 for research, technological development and demonstration. ...
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