综合能耗计算过程中能源折标系数探讨

Study on energy conversion coefficient for comprehensive energy consumption calculation

从能源折标系数含义出发,揭示了能源转换当量热值和等价热值的内涵及特点,并对二者进行了比较分析。结合国标中折标系数的参考值,对我国现行折标系数存在的问题进行了剖析,发现不同国标中能源或耗能工质的折标系数存在差异,其中,氧气、氮气、氩气和新水等耗能工质差异较大。以某企业炼钢工序的能源实际单耗为例,发现采用不同国标中等价热值转换时,工序能耗差距分别达78%和174%,采用同一国标中等价热值和当量热值分别换算时,工序能耗相差165%。

Based on the meaning of the coefficient of energy converting into standard coal, the conno-tation and features were analyzed for energy calorific value and energy equivalent value, and both were compared. Moreover, the problem of the coefficient of energy converting into standard coal was ana-lyzed binding the reference value in the national standard. It is found that there are differences in the coefficient of energy converting into standard coal of energy or energy - consumed medium, and there is a large gap in oxygen, nitrogen, argon, and new water. Take the unit energy consumption of steelmak-ing process in a plant for example, with energy equivalent value in different national standard to con-vert ,the relative differences of process energy consumption reach 78% and 174% . The relative differ-ence of process energy consumption reaches 165% when it converts with energy calorific value and en-ergy equivalent value.