Research Information System
Thesis Type: Doctorate
Institution Of The Thesis: Bursa Uludağ University, FEN BİLİMLERİ ENSTİTÜSÜ, Mechanical Engineering, Turkey
Approval Date: 2017
Thesis Language: Turkish
Student: HASAN BASRİ RAVUL
Supervisor: Muhsin Kılıç
Abstract:Demand for climate systems is increasing rapidly due to increasing world population and economic development. The high electrical consumption of conventional systems and the environmental negative effects of organic refrigerants promote the use of different technologies. Another method that can be used as an alternative to cooling systems is the absorption cooling systems. In this method, heat is used instead of electricity as the main energy input to create a cooling effect. These systems, which can use resources such as solar energy, geothermal energy, waste heat, have become popular again in recent years because they are considered environmentally friendly. Absorption cooling systems are traditionally manufactured in large cooling capacities. The difficulty in finding small capacity systems in the market is that the system dimensions and cost are higher than conventional systems. Various studies are being carried out to eliminate these disadvantages. In this study, absorption cooling systems were first introduced. Especially the cooling capacity suitable for the housing sector as the target market has been determined by investigating building statistics in Turkey. The thermodynamic model was established after determining the properties of the system such as number of stages, cooling type and solution type. Energy and exergy analysis calculations of the system have been carried out to analyze the changes at different operating temperatures. The total heat transfer coefficient in each heat exchanger is calculated with the help of literature studies and heat transfer surface areas required for heat exchangers are found. Three dimensional design of the prototype was made and a material list was prepared. During manufacturing, important issues were researched and technical specifications of equipment and materials were determined. The production of prototype has been carried out using various methods and disciplines. Performance measurements of the system were performed on the test set. Experimental results were compared with the theoretical calculations and a road map was drawn for further studies