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化工学报  2014 

考虑非等温混合的能量集成用水网络综合

DOI: 10.3969/j.issn.0438-1157.2014.01.037, PP. 285-291

Keywords: 同时优化,水网络,热集成,非等温混合,线性规划转运模型

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Abstract:

提出了考虑非等温混合的新的水网络模型,并结合线性规划(LP)转运模型同时优化水网络的水耗及公用工程目标。新的水网络模型引入非等温混合以改善用水网络的能耗特性及减少模型中参与集成换热网络的流股数,从而降低设计换热网络的复杂程度。在确定水网络的水耗及公用工程目标后,采用夹点法设计详细的换热网络结构。两个算例结果表明,新的水网络模型不仅能确定用水网络的最优水耗及公用工程目标,而且还能得到一个更加简单的换热网络。这对节省设备投资及减少操作费用具有重要意义。

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