The degeneracy of heat exchanger network synthesis with Hungarian Algorithm by Gillett method or Kuhnmethod often causes the failure of these methods.

• 实现匈牙利法的常用算法有Gillett法和Kuhn法,目前用于换热网络综合,但在实际应用中有时失败。 本文分析失败的原因在于发生了退化现象。