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SETSCI - Volume (2018)
ISAS 2018 - Ist International Symposium on Innovative Approaches in Scientific Studies, Kemer-Antalya, Turkey, Apr 11, 2018

Design, Analysis and Prototyping of the Combined Heating and Cooling System with Solar Energy (ISAS 2018_147)
Osman İpek1, Sedeeq  Alomari2*, Barış Gürel3, Mehmet Kan4, Mohammed  Alkhalidi5
1Makina Mühendisliği, SüleymanDemirelÜniversitesi  , Isparta, Turkey
2Makina Mühendisliği, Süleyman Demirel Üniversitesi  , Isparta, Turkey
3Makina Mühendisliği, Süleyman Demirel Üniversitesi  , Isparta, Turkey
4Makina Mühendisliği, Süleyman Demirel Üniversitesi  , Isparta, Turkey
5Makina Mühendisliği, Süleyman Demirel Üniversitesi  , Isparta, Turkey
* Corresponding author: sedeek.alomari@yahoo.com
Published Date: 2018-06-23   |   Page (s): 164-165   |    119     6

ABSTRACT In last years, the use of alternative energy sources such as solar energy has become even more important because of environmental problems, especially the rapid depletion of fossil energy resources. There are works done for this purpose and solar energy applications are seen to increase. In this context, absorption cooling and heating systems are one of the most important solar energy applications. Especially if it is used for both heating (winter months) and cooling (summer months), it is very important that the system is economical. In absorption systems, the thermal energy obtained from various sources can be used to create direct cooling and heating effects. Absorption refrigeration heating systems are more economical than steam compression systems, because electricity is used in steam compression systems. Absorption systems have become advantageous when utilizing solar energy for both cooling and heating. In this study, prototype design and manufacture of a system that can be used for cooling and heating at the same temperature as the solar energy absorption system, which is used as an ammonia refrigerant, was experimentally investigated in order to avoid using an environmentally harmful fluid. In this system, for both heating and cooling application, an evacuated solar collector was used instead of an electricity generator to heat the ammonia-water mixture in the working fluid. The inlet and outlet temperatures of the working fluid, the inlet and outlet temperatures of the evaporator, the temperature of the room to be heated and cooled (conditional), and the condenser inlet and outlet temperatures were measured. The COP value was determined from the measured parameters. On August 2016 - April 2017, an average of 80 experiments were conducted. Experiments were conducted between 1 -31 August 2016 to see the cooling performance of the system and between 1 -31 March 2017 to see the heating performance. According to the experimental results obtained, the COP value and the temperature of the room were determined. The solar-energy heatingcooling (combined) system is operated for heating purposes; the temperature of the conditioned room is reduced from 19 °C to 31 °C, while cooling is reduced from 39 °C to 23 °C. It has been observed that the temperature of ammonia - water mixture  circulating in the collector increases with time. The generator temperature is measured as 89.1 °C in the summer and 57.4 °C in the winter months when the need for cooling is required. In these conditions, the COP values for cooling and heating of the combined system were found to be 4.621 and 3.283, respectively.
KEYWORDS Solar energy, Heating and cooling (Combined), Absorption system

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