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Título

Lithium bromide high-temperature absorption heat pump. Coefficient of performance and exergetic efficiency

Autor Izquierdo, M.; Aroca, S.
Palabras clave Performance coefficient
Lithium bromide heat pump
Exergy balance
Exergy efficiency
Price per KWh
Waste heat recovery
Fecha de publicación 1990
EditorJohn Wiley & Sons
Citación International Journal of Energy Research 14: 281- 291 (1990)
ResumenA theoretical study on the employment of a lithium bromide absorption heat pump in Spain, used as machine type I and aimed to produce heat at 120°C via waste heat sources at 60°C, is given in the paper. Real performance conditions are stated for each component of the machine, namely the absorber, the heat recoverer, the generator, the condenser, the solution pump, the expansion valve and the evaporator. By means of thermodynamic diagrams (p, t, x) and (h, x), the required data are obtained for calculation of the heat recovered in the evaporator Qe, and the heat delivered to the absorber Qa and to the condenser Qc, as well as the heat supplied to the generator Qg. In addition, the heat delivered by the hot solution to the cold solution in the heat recovered Qr, and the work Wp done by the solution pump are calculated. The probable COP is calculated, and values are obtained close to 1.4. The working temperature in the generator is determined; it ranges from 178 to 200°C. © 1990
URI http://hdl.handle.net/10261/89242
Identificadoresissn: 0363-907X
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