换热器网络灵敏度研究

Study on Sensitivity of Heat Exchanger Networks

换热器网络灵敏度是指网络运行参数改变而引起网络各点温度的变化。基于换热器网络固有的线性性质消除矩阵逆的重复运算，导出有效的计算方法，得到整个网络的灵敏度信息，并以具体例子说明该方法的计算潜力，表明在参数变化较大以及参数同时发生变化时该方法也能应用。

A new approach is introduced which is based on the inherently linear nature of HENs.This approach eliminates the need for repeated matrix inversions and leads to an efficient computational procedure for generating the entire sensitivity information.An example is also presented which demonstrates the computational efficiency and indicates that the procedures can be applied even when the deviations in operating parameters are large and simultaneous.