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首页> 外文期刊>International Journal of Process Systems Engineering >Analysis of thermal system network of an ammonia plant using genetic algorithms - part II: network modification
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Analysis of thermal system network of an ammonia plant using genetic algorithms - part II: network modification

机译:基于遗传算法的氨厂热力系统网络分析-第二部分:网络修改

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This part of the paper examines two options of modification of the HEN of the ammonia plant based on two methods of pinch analyses, viz., network pinch method (NPM) and retrofitting analysis (RA) using genetic algorithms for both ΔT_(min) and Q_(min) approaches. Using NPM with ΔT_(min) and Q_(min) approaches, it is seen that there is a scope for reduction in hot and cold utilities by 1,758 kW and subsequently reduction in area of HEN by 368 m~2 and 136 m~2 which results in decrease of total annual cost by 1.71% and 1.30% respectively. Amongst the combination of modification, it is also found that using NPM with ΔT_(min) approach, the hot and cold utility requirements for existing area efficiency and ideal area efficiency can be reduced with a payback period of 1.69 years and 0.80 years respectively.
机译:本文的这一部分基于两种夹点分析方法,即网络夹点方法(NPM)和改型分析(RA),使用遗传算法对ΔT_(min)和ΔT_(min)和改型分析(RA)进行了研究,对氨厂HEN的两种改性方法进行了研究。 Q_(min)方法。结合使用ΔT_(min)和Q_(min)方法的NPM,可以看出,将冷热公用事业减少1758 kW,随后将HEN面积减少368 m〜2和136 m〜2,这是一个范围导致年度总成本分别降低1.71%和1.30%。在修改的组合中,还发现使用NPM和ΔT_(min)方法,可以以1.69年的回收期和0.80年的投资回收期降低现有面积效率和理想面积效率的热和冷效要求。

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