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化工学报  2014 

考虑热泵设置的换热网络分步改造及其多目标优化策略

DOI: 10.3969/j.issn.0438-1157.2014.10.031, PP. 3976-3983

Keywords: 换热网络,模型,优化,二氧化碳,热泵,燃料替换

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Abstract:

为了研究热泵设置对换热网络系统节能和CO2减排的综合影响,建立了以换热网络年度化的改造费用和新增CO2排放量最小为目标的多策略分步改造的多目标优化模型。以酮苯脱蜡装置的换热网络改造为例,阐明了本文所提方法的有效性,并获得了经济性和CO2排放量目标权衡的Pareto曲线。本文还对热泵在换热网络中的设置位置进行了讨论,对比和分析了换热网络优化、热泵设置和燃料替换3种改造策略的经济性、减排效果以及节能效果。该方法可为过程工业系统的节能和CO2排放控制策略的制定提供理论依据。

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