一种具有不同传热膜系数网络的新设计方法—虚拟温度法

根据具有不同传热膜系数网络的特点，提出了该种网络的一种新设计方法─—虚拟温度法。它是建立在多温差法基础上，以过夹点的最大能量Ｒｐ、流股的传热膜系数ｈ＿ｍ、热容流率ＣＰ＿ｍ为依据，在网络匹配前，给各工艺物流以适当的温差补偿．后用ＭＩＬＰ转运模型将网络作一整体求解．实例结果证明：本文所提方法是目前该种网络设计中一种较为适宜的方法．

New method for HENs with different film heat transfer coefficients-pseudo-temperature

According to the attribution of the heat exchanger networks with different film heattransfer coefficients,a new methed for the HENs is firstly put forward.It is based on multi-temperature approaches,depends on the maximum energy Rp of crossing pinches,film heattransfer coefficients h_m and heat capacity flow CP_m to form pseudo-temperature for compensatingthe every stream before designing and makeing use of the MILP transshipment model as a whole.The results of the example prove that it is a suitable method used to design HENs so far.