A novel type II absorption-cycle heat-pump is described. The proposed
cycle utilises the partial miscibility of some binary mixtures to sepa
rate the volatile working-fluid from the rich absorbent. The feasibili
ty of the cycle is demonstrated by computer simulation of the cycle us
ing cyclohexane and aniline as working fluids. Simulations demonstrate
d that useful heating could be achieved only over a limited temperatur
e-range and with poor thermodynamic performance. A modification of thi
s cycle, which included an additional distillation step, was shown to
improve performance significantly.