In the paper,I use the first and especially the second law to analyse the thermal system for the calibration results of energy balance and exergic balance in No.

运用热力学第一、二,是第二(火用)(有效能)的概念,对燕化炼厂二蒸馏车间的能量平衡和(火用)平衡进核算,分析了装置的用能情况,并从中发现问题,提出改进意见。