Performance parameters for the design of a combined refrigeration and electrical power cogeneration system

摘要

This paper discusses the conservation of energy in a cogeneration system. A steam power cycle (Rankine) produces electrical power 2 MW and steam is bleeded off from the turbine at 7 bar to warm a factory or units of buildings during the winter or to supply a steam ejector refrigeration cycle to air-conditioning the same area during the summer. In the summer this system can be as alternative solution instead of absorption. Certainly the ejector refrigeration unit is more economical than absorption unit. The ratio of electrical power/heat is varied into the region (0.1-0.4) and the evaporator temperature of the ejector cycle is varied into the region (10-16 ℃). A computer program has been developed for the study of performance parameters of the cogeneration system.