Theoretical comparison of performance of an absorption heat pump system for cooling and heating operating with an aqueous ternary hydroxide and water/lithium bromide
Rj. Romero et al., Theoretical comparison of performance of an absorption heat pump system for cooling and heating operating with an aqueous ternary hydroxide and water/lithium bromide, APPL TH ENG, 21(11), 2001, pp. 1137-1147
This paper compares the theoretical performance of the modelling of a heat
pump system for cooling and heating operating with water/lithium bromide an
d an alternative aqueous ternary hydroxide mixture. The aqueous ternary hyd
roxide working fluid consists of sodium, potassium and caesium hydroxides i
n the proportions 40:36:24 (NaOH:KOH:CsOH).
Plots of Carnot coefficients of performance and enthalpy based coefficients
of performance are shown against the most important temperatures of the sy
stem. The results showed that similar coefficients of performance are obtai
ned for both mixtures; however, it was found that the system operating with
the alternative mixture may operate with a higher range of condenser and a
bsorber temperatures and the heat delivered by these components can be easi
ly removed by air. (C) 2001 Elsevier Science Ltd. All rights reserved.