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首页> 外文会议>International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems Program Committee;International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems >Advanced exergy analysis of distillation systems by splitting the exergy destructions into endogenous and exogenous parts
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Advanced exergy analysis of distillation systems by splitting the exergy destructions into endogenous and exogenous parts

机译：通过将能级破坏分为内生和外生部分，对蒸馏系统进行高级能值分析

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The total exergy destruction in a component is resulted from the inefficiency of the component itself(endogenous exergy destruction)and other relations(exogenous exergy destructions)in a complex energy system.Advanced exergy analysis by splitting exergy destruction into endogenous and exogenous parts not only helps us to better understand the interactions between components,but also provides valuable information for identifying the exergy-saving potentials in the system,particularly when the concept is combined with the avoidable and unavoidable exergy destruction.This work presents an advanced exergy analysis in distillation processes for identifying the potential of energy savings.Conventional analysis of a C8+separation plant suggests that the energy-saving potentials of components should be improved by the order of C2(5.59％),C1(5.20％),T2(3.92％),R1(3.57％),T1(1.58％),R2(1.47％).In contrast,the advanced analysis shows that the components are ranked as C2(37.44％),T1(81.62％),C1(92.03％),R2(94.21％),R1(95.97％),T2(86.49％).Moreover,plotting the advanced exergy analysis results of all components in asimple diagram(Carnot efficiency(energy grade ε)versus heat flow rate diagram((T-T0)/T vs.Q))clearly reveals the inherent mechanism of exergy destruction and the direction for energy-saving.This study demonstrates that scheme from the advanced analysis offers better understanding to the exergy destruction process,which is useful in the future design/heat integration of distillation system.
机译：组件中的总火用破坏是由于组件本身效率低下（内源性火用破坏）和复杂能源系统中的其他关系（外源性火用破坏）造成的。通过将火用破坏分为内源性和外源性部分进行高级火用分析，不仅有帮助我们不仅可以更好地理解各组件之间的相互作用，而且还可以提供有价值的信息来识别系统中的节能潜力，尤其是当该概念与可避免的和不可避免的节能消除相结合时。这项工作为蒸馏过程提供了一种先进的节能分析对C8 +分离装置的常规分析表明，组件的节能潜力应按C2（5.59％），C1（5.20％），T2（3.92％），R1的顺序提高。 （3.57％），T1（1.58％），R2（1.47％）。相比之下，高级分析显示这些成分分别为C2（37.44％），T1（81.62％），C1（92.03％），R2 （94.21％），R1（95.97％），T2（86.49％）。此外，以简单图（卡诺效率（能量等级ε）与热流图（（T-T0））的形式分析所有组件的高级火用分析结果。 / T vs.Q））清楚地揭示了火用破坏的内在机理和节能的方向。这项研究表明，从高级分析中获得的方案可以更好地理解火用破坏过程，这对将来的设计/供热很有用。集成蒸馏系统。

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