Energy and exergy analysis of a double absorption heat transformer operating with water/lithium bromide


Por: Martinez, H, Rivera, W

Publicada: 10 jun 2009
Resumen:
In the present study, the first and second law of thermodynamics have been used to analyze in detail the performance of a double absorption (lift) heat transformer operating with the water-lithium bromide mixture. A mathematical model was developed to estimate the coefficient of performance (COP), the exergy coefficient of performance (ECOP), the total exergy destruction in the system (Psi(TD)) and the exergy destruction (Psi(D)) in each one of the main components, as a function of the system temperatures, the efficiency of the economizer (EF(EC)), the gross temperature lift and flow ratio (FR). The results showed that the generator is the component with the highest irreversibilities or exergy destruction contributing to about 40% of the total exergy destruction in the whole system, reason why this component should be carefully designed and optimized. The results also showed that the COP and ECOP increase with increase in the generator, the evaporator and the absorber-evaporator temper

Filiaciones:
Martinez, H:
 Univ Nacl Autonoma Mexico, Ctr Invest Energia, Temixco 62580, Mor, Mexico

Rivera, W:
 Univ Nacl Autonoma Mexico, Ctr Invest Energia, Temixco 62580, Mor, Mexico
ISSN: 0363907X





INTERNATIONAL JOURNAL OF ENERGY RESEARCH
Editorial
John Wiley & Sons Ltd, Chichester, United Kingdom, THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLAND, Estados Unidos America
Tipo de documento: Article
Volumen: 33 Número: 7
Páginas: 662-674
WOS Id: 000266305300003