The Application and Economic Evaluation of DES: Discussion on DES Based CCHP

For its high efficiency, energy saving, environmental protection and other advantages, DES developed rapidly in the developed world. CCHP, which has been public concern and recognition at home and abroad, was one of the most important ways in DES. Starting from discussing DES based CCHP, this article explores the application of DES in China, and makes the relative economic evaluation, and then shows the important function of DES with CCHP under the background of constructing an environment friendly society in China.