基于温位区间的换热网络非结构模型
Unstructured Model of Heat Exchanger Network Based on Temperature Level Range
DOI: 10.12677/MOS.2021.102060, PDF,    国家自然科学基金支持
作者: 沈 昊, 崔国民*：上海理工大学新能源科学与工程研究所，上海
关键词: 换热网络；优化；计算机模拟；数学模型；Heat Exchange Network； Optimization； Computer Simulation； Mathematical Model
摘要: 分析了换热网络节点非结构模型在优化换热网络问题上的局限性，建立了一种改进的基于温位区间的换热网络非结构模型。该模型将模型空间基于各流股进出口温度划分为高温位区间，中温位区间和低温位区间，各流股上节点按温位区间进行分配，并对节点匹配方式做出规定，禁止热流股低温位节点和冷流股高温位节点跨区间匹配。算例验证表明，该换热网络模型大大减少不可行匹配结构出现的可能性，简化求解空间，有效提高优化效率。
Abstract: This paper analyzes the limitations of the node unstructured model of heat exchanger network in the optimization of heat exchanger network, so an improved unstructured model of heat exchanger network based on temperature level interval is established. In this model, the model space is divided into high temperature zone, medium temperature zone and low temperature zone based on the inlet and outlet temperature of each stream. The nodes on each stream are allocated according to the temperature zone, and the node matching method is specified. Cross range matching of low temperature node and high temperature node of hot stream is prohibited. The results show that the heat exchanger network model can greatly reduce the possibility of non feasible matching structure, simplify the solution space and effectively improve the optimization efficiency.
文章引用：沈昊, 崔国民. 基于温位区间的换热网络非结构模型[J]. 建模与仿真, 2021, 10(2): 597-608. https://doi.org/10.12677/MOS.2021.102060

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