The Pure Heat Conversion Coefficient Analysis Method for Thermal System in Supercritical Pressure Power Unit with Double Reheat Cycles

摘要：

Due to double reheat and using cross-level superheat with outer steam cooler, the thermal economic analysis of double reheat supercritical plant Is far more different from once reheat unit, so it brings some obstacles to the former ones energy-saving analysis. For this reason, pure heat conversion coefficient, which is one important parameter for double reheat unit, is defined, and its general matrix form is deduced, so the thermal economic analysis of double reheat unit can be done with one of extraction steam efficiency. In this way, a new method of thermal economic quantitative analysis is offered, and a complete model of quantitative economic calculation forms. Through some case calculations, the reliability of the model proved that it is common, accuracy and suitable for computer calculation.

关键词： double reheat unit thermodynamic system thermal economy pure heat conversion coefficient matrix method

作者: Guo Zhongde Zhang Shufang Mai Yingcheng Li Xiang Zhao Hekai

作者单位: Department of Power Engineering North China Electric Power University Baoding, China

会议类型: 国际会议

会议名称: 2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)

会议地点: 长沙

会议语种:英文

页码: 745-748

在线出版日期: 2010-12-18（万方平台首次上网日期，不代表论文的发表时间）