Research On The Integrating System Of Combining 50MW Cogeneration Unit With Solar Utilization System

Integrating the solar utilization system with the coal-fired power plant into the solar supported coal-fired power generation(SSCPG) system shows an effective way for the large-scale utilization of solar energy and energy conservation in coal-fired power units currently in China. Taking the SSCPG systems integrated solar utilization system with C50-8.83/0.294 heat and electricity cogeneration unit as examples, several integrating models were put forward, and the integration rules were summarized based on the first law of thermodynamic analysis, exergetic analysis and thermoeconomic analysis. Then, two integrated system of reducing 1# bled steam flow rate and reducing all HP&LP bled steams together were taken as examples to analyze its thermal performances and its economic analysis. The influence of location, operation mode on their performance was also discussed. It can be a helpful guidance for the application of SSCPG system in China.