THE APPLICATION OF 揊REE PATH RULE?IN POWER PLANT THERMODYNAMIC SYSTEM ANALYSIS
GUO Min-chen, WEI Nan, LIU Wen-yi (North China Electric Power University, Beijing 102206, China)
The virtual expression of the flow of the steam and water system is provided based on the heat balance matrix equations in this paper. Steam and water can flow along the existent or inexistent path in the thermodynamic system. The path of the steam and water becomes a closed cycle centered the hot well of the condenser . Moreover, the direction of the path is random. To the same flux there are many different paths in the thermodynamic system. For any path chosed , the influence of the flux on the heat consumption of the whole thermodynamic system can be calculated based on the concept and the calculation rules of the heat rate transformation coefficient. Compared with the traditional calculation methods, the process is simplified while the result is same. Thermal economy analysis and the classification are given for the gland-packing leakage, extraction steam for heating, the steam for the auxiliary turbine, desuperheating water of reheater and the high pressure valve leakage. Based on a 300 MW unit, its economic load parameters are calculated.
【CateGory Index】： TK212