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A novel approach for operational optimization of multi-stage refrigeration cycles in gas refineries

机译：气体炼油厂多阶段制冷循环运行优化的新方法

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The efficient use of energy in refrigeration cycles of gas liquefaction plants is a contemporary topic of interest. The previous optimization studies on refrigeration cycles have not considered the components' operational limitations. By considering the fact that in operating plants, all constraints must be thoroughly taken into account, this paper presents a novel approach for operational optimization of in-use refrigeration cycles which takes into account the operational limitations of the components as well as the interaction between the refrigeration cycle and the core process. This novel approach exploits a combination of thermodynamic principles and pinch technology to express the multi-stage refrigeration cycles' power consumption as a function of several independent variables. To examine the applicability of the proposed approach, it is used to optimize a three-stage refrigeration cycle in a propane liquefaction plant. About 15.4% reduction in the specific power consumption is achieved. (C) 2017 Elsevier Ltd and IIR. All rights reserved.
机译：高效使用能量的气体液化工厂的能量是一种当代兴趣的主题。先前关于制冷循环的优化研究尚未考虑组件的运行限制。通过考虑在运营工厂的事实中，必须彻底考虑所有约束，本文介绍了使用内使用的制冷循环的操作优化的新方法，这考虑了组件的运行限制以及之间的相互作用制冷循环和核心过程。这种新颖的方法利用热力学原理和捏合技术的组合来表达作为几个独立变量的函数的多级制冷循环的功耗。为了检查所提出的方法的适用性，它用于优化丙烷液化植物中的三级制冷循环。实现了特定功耗的减少约15.4％。 （c）2017年Elsevier Ltd和IIR。版权所有。

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