V. A. Naletov, D. Zh. Abdillaeva, M. B. Glebov, A. Yu. Naletov
{"title":"Regasification of Liquefied Natural Gas Based on the Rankine Cycle: Thermodynamic Analysis","authors":"V. A. Naletov, D. Zh. Abdillaeva, M. B. Glebov, A. Yu. Naletov","doi":"10.3103/S1068364X25600435","DOIUrl":null,"url":null,"abstract":"<p>Options for organizing the regasification of liquefied natural gas (LNG) with the Rankine cycle are compared, with a view to more effective use of the cold energy of the liquefied gas. The comparison is based on exergy efficiency: the ratio of the total thermal inlet and outlet exergy for the system. In calculating the thermal characteristics of the flow, components of thermal exergy that don't change are discarded. ChemCad software is used for computational experiments. In organizing the regasification of liquefied natural gas (LNG) with the Rankine cycle, the heat source employed is seawater or flue gas at the output of turbine-based thermal power systems. When using environmental resources (seawater) at marine terminals, the efficiency of regasification proves higher than when using flue gas. However, the power generated in the Rankine cycle is 2.4 times greater when using flue gas. In addition, when using the residual heat of the flue gas, the heat pollution of the environment may be significantly reduced. All in all, the use of flue gas can be more economically viable.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"68 3","pages":"258 - 262"},"PeriodicalIF":0.5000,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Coke and Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.3103/S1068364X25600435","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Options for organizing the regasification of liquefied natural gas (LNG) with the Rankine cycle are compared, with a view to more effective use of the cold energy of the liquefied gas. The comparison is based on exergy efficiency: the ratio of the total thermal inlet and outlet exergy for the system. In calculating the thermal characteristics of the flow, components of thermal exergy that don't change are discarded. ChemCad software is used for computational experiments. In organizing the regasification of liquefied natural gas (LNG) with the Rankine cycle, the heat source employed is seawater or flue gas at the output of turbine-based thermal power systems. When using environmental resources (seawater) at marine terminals, the efficiency of regasification proves higher than when using flue gas. However, the power generated in the Rankine cycle is 2.4 times greater when using flue gas. In addition, when using the residual heat of the flue gas, the heat pollution of the environment may be significantly reduced. All in all, the use of flue gas can be more economically viable.
期刊介绍:
The journal publishes scientific developments and applications in the field of coal beneficiation and preparation for coking, coking processes, design of coking ovens and equipment, by-product recovery, automation of technological processes, ecology and economics. It also presents indispensable information on the scientific events devoted to thermal rectification, use of smokeless coal as an energy source, and manufacture of different liquid and solid chemical products.