Assessment of the performance of a natural gas liquefaction cycle using natural refrigerants

Yoon, Jung-In; Choi, Kwang-Hwan; Lee, Ho-Sang; Kim, Hyeon-Ju; Son, Chang-Hyo

doi:10.1007/s00231-014-1399-9

Cited by 7 publications

(2 citation statements)

References 12 publications

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“…The MRC with pre-cooling fully absorbs the advantages of the cascade cycle and reduces the total power consumption by adding the pre-cooling link. Both APCI and Shell of the United States can adjust the amount of liquid refrigerant by controlling the temperature of the mixed refrigerant after pre-cooling, which greatly increases operation flexibility and boosts cooling efficiency [24][25][26].…”

Section: Open Mrc Processmentioning

confidence: 99%

A Critical Analysis of Natural Gas Liquefaction Technology

Wu¹,

Wang²,

Dong³

et al. 2022

Fluid Dynamics &Amp; Materials Processing

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Section: Open Mrc Processmentioning

confidence: 99%

A Critical Analysis of Natural Gas Liquefaction Technology

Wu¹,

Wang²,

Dong³

et al. 2022

Fluid Dynamics &Amp; Materials Processing

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“…From the results it can be deduced that change in the operating conditions of the propane evaporator results in a lower entropy generation which reduces the exergy loss and increases the exergy efficiency. Exergy loss is influenced by larger temperature or pressure difference applied across the refrigerant stream and not by the number of equipment used in the propane cycle [31]. Based on the exergy analysis, it can be concluded that both the valves and the compressors are the main contributors of exergy loss.…”

mentioning

confidence: 98%

A case study: Application of energy and exergy analysis for enhancing the process efficiency of a three stage propane pre-cooling cycle of the cascade LNG process

Khan

Barifcani

Tade

et al. 2016

Journal of Natural Gas Science and Engineering

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The propane pre-cooling cycle has been widely used in most LNG plants as the first cooling cycle in the natural gas liquefaction process. As LNG plants consume high amounts of energy, enhancements in the process design and plant operation will minimize the overall energy consumption of the plant. The aim of this study is to enhance the process efficiency of.J! three stage propane pre-cooling cycle of the Cascade LNG process for the large-scale LNG train by determining the optimal operating conditions of 2 the propane evaporator that will minimize the overall energy consumption. Energy and exergy analysis methods are adopted to evaluate the process efficiency of the propane pre-cooling cycle. Six case studies were presented to determine the optimal operating conditions of the propane evaporator that gives maximum energy reduction. The propane pre-cooling cycle is modelled and simulated using Aspen 7 HYSYS with detailed thermodynamic information obtained to calculate the exergy loss. The results of the energy and exergy analysis indicate that Case 6 gives the highest coefficient of performance (COP) 9 and the maximum exergy efficiency compared to the baseline case, which are 15.51% and 18.76% respectively. The results indicate that by reducing the cooling duty at the intermediate stage §. of propane evaporator about 13.5% energy saving can be achieved compared to the baseline case.

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Discussion of Past, Present and Future Perspectives of Refrigerants and Its Future Scope

Kanna

Devaraj

2018

Lecture Notes in Mechanical Engineering

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Assessment of the performance of a natural gas liquefaction cycle using natural refrigerants

Cited by 7 publications

References 12 publications

A Critical Analysis of Natural Gas Liquefaction Technology

A Critical Analysis of Natural Gas Liquefaction Technology

A case study: Application of energy and exergy analysis for enhancing the process efficiency of a three stage propane pre-cooling cycle of the cascade LNG process

Discussion of Past, Present and Future Perspectives of Refrigerants and Its Future Scope

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