Specific features of combined generation of electric power, heat, and cold by combined-cycle plants

Abstract

Trigeneration systems based on the combined-cycle plants of condensation type and the combined-cycle plants of cogeneration type of several possible structures for the simultaneous generation of heat and cold are developed. Two types of their operational modes are considered: trigeneration complexes with separate and simultaneous generation of heat and cold. In the first case, two assemblies (thermotransformers) of different types are used for generation of heat and cold, one of which is designed to generate heat and the second to generate cold. In the second case, the heat and cold are generated simultaneously in one thermotransformer. In the article, the results of thermodynamic analysis and calculations of technical and economic efficiency of the developed trigeneration systems are presented.