Abstract A thermodynamic analysis was carried out to study the effect of design parameters including heat-recovery ratio, solution circulation ratio and distribution ratio of solution on the performance of a double-effect absorption chiller of the parallel-flow-type using water-lithium bromide as the working fluid. Increases in the heat-recovery ratios of the high-temperature heat exchanger and the low-temperature heat exchanger, the distribution ratio of the solution, and a decrease in the solution circulation ratio, improved the coefficient of performance. Effects of heat-recovery ratios in the high-temperature heat exchanger and low-temperature heat exchanger on the total heat-transfer area of the absorption chiller were weak. The distribution ratio of the solution affected the outlet temperatures and strong concentrations in a high-pressure generator, low-temperature heat exchanger and a high-temperature heat exchanger. Finally, the optimum design and operating conditions of a double-effect absorption chiller are suggested based on this cycle simulation analysis.
[1]
G. Grossman,et al.
A computer model for simulation of absorption systems in flexible and modular form
,
1987
.
[2]
H. Perez-Blanco,et al.
Numerical fits of the properties of lithium-bromide water solutions
,
1988
.
[3]
S. C. Kim,et al.
Cycle analysis of an air-cooled LiBr/H2O absorption heat pump of parallel-flow type
,
1994
.
[4]
G. C. Vliet,et al.
Water-lithium bromide double-effect absorption cooling analysis
,
1980
.
[5]
T. Uemura,et al.
Theoretical performance analysis of absorption refrigerating machine, absorption heat pump and absorption heat transformer using alcohol as working medium
,
1994
.
[6]
G. Grossman,et al.
A modular computer simulation of absorption systems
,
1985
.