管网保温层热经济寿命的决策方法
Decision method of thermoeconomic life of piping insulation
摘要：
利用保温裸露因数的概念来反映保温层保温性能的变化，提出采用统一原则来建立适用于单元系统和复合系统保温层热经济寿命的数学模型，并通过实例证明在热经济寿命终了时更新保温层，可使系统的运行具有最大的经济性。
关键词：保温层,更新,热经济寿命
Abstract：
Proposes the exposed coefficient of heat insulation, which describes the change of the effect of heat insulation. Based on the same rule of determining the replacement period of heat insulation layer, i.e. thermoeconomic life, presents the mathematical model suitable for unitary systems and compound systems. An example shows that replacing heat insulation at the ending of thermoeconomic life can improve effectively economic benefits of piping operation.
Keywords:heatinsulationlayer,replacement,thermoeconomiclife