A loop for calculating the fuel heating power on line by enthalpy is described together with the setting of its important arithmetical parameters 轮发电机组制动风闸的位置检测，因习惯上采用机械式行程开关，导致故障率高，检测可靠性差。
Avoiding the influence on system control quality exerted by changes in coal types , coal humidity and baffle plate opening of ( pulverized ) coal feeders , etc . , the method can enhance the controllability of unit output and is well worth application 为此将红外光控技术应用于检测回路，特制了专用于风闸检测的红外检测开关，经在新丰江水电厂改造实施，取得了明显成效。
