PROPERTIES GENERATION PROCEDURES FOR 1ST AND 2ND LAW ANALYSES OF AMMONIA-WATER HEAT-PUMP SYSTEM

Procedures for the generation of properties relevant for first and sec ond law analyses of ammonia-water absorption heat pump systems have be en presented. The properties generated can be used also for design, si mulation and optimization of such systems. The properties generated by the method documented here include enthalpy, vapour pressure, vapour concentration, specific heat capacity and entropy. The procedures are based on Chebyshev polynomials of the second kind. The equations gener ated by these procedures cover the entire range of documented data for saturated ammonia-water solutions and are quite accurate. These proce dures can be extended to related systems.