Development complex efficiency of central heat and power plant (CHPP) on the basis of exergy methodology

摘要

The article provides a method of assessing the effectiveness of CHPP units based on differential-exergy method. Technical and economic indices of CHPP operating regime such as unit exergic efficiency electric power and thermal exergy delivering, technical and economic exergy efficiency, the specific costs of electrical energy and thermal exergy are considered. These indices can extend traditional technical and economic analysis of CHPP operating mode, as they take into account thermodynamically rigorous separation of fuel costs between thermal exergy and electric power at their complex production on CHPP. Also there are estimates of operating mode performance at exergic analysis for power units and CHPP integrally in the paper. The values of technical and economic indices for different power units are given as an illustration of the results and developed techniques.