天然气冷热电三联产在工业中的应用

APPLICATION OF COOL,HEAT,AND ELECTRICITY TRIPLE CO-GENERATION BASED ON NATURAL GAS IN INDUSTRIAL SECTOR

广东某地原规划的燃煤热电联产（燃煤CHP）机组能取得较好的经济效益,但大气污染物排放较高;原规划的天然气热电联产（天然气CHP）机组在相对于燃煤CHP机组较高的上网电价条件下,其经济效益可以与燃煤CHP机组竞争,但由于热电比较小,天然气CHP整体环境效益仍不理想。对此,建议采用天然气冷热电三联产（天然气CCHP）机组,虽然发电量相对较少,但能源利用效率提高,环境效益相对也较好。

The originally planned units for heat and electricity co-generation system based on fuel coal in one place of Guangdong Province may obtain better economic benefits,but its atmosphric pollutant emission is comparatively high.Under condition of higher electricity price for connecting units onto the power grid,the units planned originally for heat and electricity co-generation based on natural gas,the economic benefits of them can compete with that of units in co-generation system based on fuel coal,but the heat/electricity ratio in this case is smaller,the integral environmental benefits being still not ideal.For this,it is recommended to adopt units for cool,heat,and electricity triple co-generation system,although the generated electricity is smaller in this case,the utilization coefficient of energy,however,being enhanced,and the environmental benefits being also better.