基于等效焓降理论提出了有效降的概念，建立了当抽汽量扰动时对整个热力系统影响的数学模型。

With the notion of effective exergy drop based on equivalent enthalpy drop theory, mathematic models of exothermic steam perturbation effect on the whole thermodynamic system were founded.

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通过对采用热焓处理相变导热问题的有限元分析，提出了消除迭代求解的一种有效算法。

According to the finite element analysis of heat conduction with phase-change by using the enthalpy, an effective numerical method to eliminate the solution of iteration is presented.

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