论文部分内容阅读
作者在连载的第四讲和第五讲中,介绍了三种确定节能主攻方向的方法,即按最大(火用)损失发生的部位、按最小单元(火用)效率以及按最大单元贡献因子来确定系统的节能主攻方向。后一种方法是运用系统的思想来确定节能主攻方向。这是比较合理的方法。虽然如此,作者仍然认为只有在掌握了关于确定节能主攻方向的全面的信息(△E_i、η_i和ε_i)后,才能在确定节能主攻方向的问题上,作出科学的决策。 以第四讲和第五讲中所举的我国中型氨广的氨合成系统为例,用上述三种确定节能主攻
In Lectures Lecture 4 and Lecture 5, the author introduces three methods to determine the main direction of energy conservation: the site where the maximum (exergy) loss occurs, the minimum exergy efficiency, and the maximum unit contribution factor To determine the main energy-saving system direction. The latter method is to use the system’s thinking to determine the main energy-saving direction. This is a more reasonable method. Nevertheless, the author still believes that scientific decision-making can only be made on the issue of determining the main direction of energy conservation only after having mastered the comprehensive information (△ E_i, η_i and ε_i) on the main direction of energy conservation. Taking the ammonia synthesis system of medium-sized ammonia-ammonia in our country mentioned in the fourth and fifth lectures as an example, we use the above three methods to determine the energy-saving