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Full-Text Articles in Mechanical Engineering
Energy Efficiency And Economic Feasibility Of An Absorption Air-Conditioning System Using Wet, Dry And Hybrid Heat Rejection Methods, Julia Aman, Paul Henshaw, David S-K Ting
Energy Efficiency And Economic Feasibility Of An Absorption Air-Conditioning System Using Wet, Dry And Hybrid Heat Rejection Methods, Julia Aman, Paul Henshaw, David S-K Ting
Mechanical, Automotive & Materials Engineering Publications
In tropical and sub-tropical regions, air-conditioning systems account for the greatest electricity consumption and high water use. Solar-driven absorption cooling systems can conveniently reduce electricity consumption at need. The performance of this cooling system depends on the system’s heat rejection. A simulation was performed for a 15 kW single effect ammonia-water absorption cooling system driven by low temperature thermal energy and with three different heat rejection methods (wet cooling, dry cooling, and hybrid cooling). This hybrid cooling system uses wet cooling on the absorber and dry cooling on the condenser. The system performance and economics of the chiller with these …
Bubble-Pump-Driven Libr-H2o And Licl-H2o Absorption Air-Conditioning Systems, Julia Aman, Paul Henshaw, David S-K Ting
Bubble-Pump-Driven Libr-H2o And Licl-H2o Absorption Air-Conditioning Systems, Julia Aman, Paul Henshaw, David S-K Ting
Mechanical, Automotive & Materials Engineering Publications
A thermally-driven bubble pump, powered by solar or waste heat energy, is a simple and efficient technique for lifting a liquid from lower to higher levels, after which it can flow by gravity. In this study, solar thermal driven pumps were incorporated in the solar collector as well as in the refrigerant cycle to provide a design of an air-conditioning system for a residential home that is independent of grid electricity. The crystallization challenge, low pressure, and low efficiency are the main downsides of bubble-pump-driven LiBr-H2O refrigeration systems, in comparison with other bubble-pump-driven diffusion absorption refrigeration systems. Therefore, a complete …