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Energy and exergy analysis of absorption–compression hybrid air-conditioning system
A hybrid system is proposed based on a driving unit integrated with an air-cooled compression and an air-cooled absorption chiller. The cooling capacity of the hybrid system is used for air conditioning of a residential building. The prime mover can either be a micro-gas turbine, a gas turbine, or a solid oxide fuel cell. In order to investigate the effect of the operating conditions and the type of driving unit, energy and exergy analyses have been carried out. The efficiency factors and the exergy destruction in each component have also been studied. The results show that the maximum irreversibilities happen in the generator or in the air-cooled condenser, and the total destruction is higher for the gas turbine case compared to the other two cases. It appears that the increase in the ambient temperature causes a decrease in the energy utilization factor but an increase in the second law efficiency. This process is reversed with an increase in evaporating temperature, whereby an increase in the energy utilization factor and a decrease in the second law efficiency is experienced.
Energy and exergy analysis of absorption–compression hybrid air-conditioning system
A hybrid system is proposed based on a driving unit integrated with an air-cooled compression and an air-cooled absorption chiller. The cooling capacity of the hybrid system is used for air conditioning of a residential building. The prime mover can either be a micro-gas turbine, a gas turbine, or a solid oxide fuel cell. In order to investigate the effect of the operating conditions and the type of driving unit, energy and exergy analyses have been carried out. The efficiency factors and the exergy destruction in each component have also been studied. The results show that the maximum irreversibilities happen in the generator or in the air-cooled condenser, and the total destruction is higher for the gas turbine case compared to the other two cases. It appears that the increase in the ambient temperature causes a decrease in the energy utilization factor but an increase in the second law efficiency. This process is reversed with an increase in evaporating temperature, whereby an increase in the energy utilization factor and a decrease in the second law efficiency is experienced.
Energy and exergy analysis of absorption–compression hybrid air-conditioning system
Mohammadi, S. M. Hojjat (author) / Ameri, Mehran (author)
HVAC&R Research ; 19 ; 744-753
2013-08-01
10 pages
Article (Journal)
Electronic Resource
English
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