Cryogenic tank configuration and capacity of centrifugal boil-off gas compressors
- Authors: Kazantsev R.A.1, Fateeva E.S.1, Kozhukhov Y.V.1
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Affiliations:
- ITMO University
- Issue: Vol 114, No 1 (2025)
- Pages: 43-51
- Section: Original Study Articles
- URL: https://journal-vniispk.ru/0023-124X/article/view/357922
- DOI: https://doi.org/10.17816/RF655497
- EDN: https://elibrary.ru/CIBPOB
- ID: 357922
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Abstract
BACKGROUND: During the marine transportation of liquefied natural gas, the transported energy carrier constantly changes its physical state as the gas partly condenses becoming liquid and partly evaporates becoming gas, increasing the pressure in the cargo tanks. The amount of evaporated gas determines the required capacity of the boil-off gas compressors in the boil-off gas reliquefaction unit, which allows the evaporatedliquefied natural gasLNG components to return back to the storage tank.
AIM: To assess and analyze the influence of liquefied natural gas tanker geometry on the intensity of liquefied natural gas evaporation and the capacity of centrifugal boil-off gas compressors.
METHODS: The calculation method compares the liquefied natural gas evaporation rate with the cross-sectional area of filled tanks of various configurations based on heat exchange and thermal insulation, which is a key aspect in the design of cryogenic tanks. The authors use an example of three types of isolated tanks of different shape and height-to-diameter ratio, allowing to evaluate the influence of geometry on the evaporation intensity and to calculate the estimated capacity of centrifugal boil-off gas compressors.
RESULTS: To assess the influence of tank shape on liquefied natural gas volumetric losses, the authors use a model to consider heat gain through insulation and convective heat exchange with the environment. The findings allow to evaluate the influence of the tank design on the amount of generated boil-off gas, improve their design, and reduce the capacity of centrifugal boil-off gas compressors.
CONCLUSION: The analysis and calculations showed that the evaporation surface area directly affects the amount of evaporated boil-off gas and the power consumption of the boil-off gas compressor. The study may be useful for the design and improvement of cryogenic liquefied natural gas storage and transportation systems and for assessing the capacity of centrifugal boil-off gas compressors.
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##article.viewOnOriginalSite##About the authors
Roman A. Kazantsev
ITMO University
Author for correspondence.
Email: karoz.exe@gmail.com
ORCID iD: 0009-0005-4723-5266
SPIN-code: 5169-9180
Russian Federation, Saint-Petersburg
Ekaterina S. Fateeva
ITMO University
Email: ekaterina.s.fateeva@gmail.com
ORCID iD: 0000-0001-8302-9877
SPIN-code: 5202-4784
Russian Federation, Saint-Petersburg
Yuriy V. Kozhukhov
ITMO University
Email: kozhukhov_yv@mail.ru
ORCID iD: 0000-0001-7679-9419
SPIN-code: 5756-4994
Cand. Sci. (Engineering), Associate Professor
Russian Federation, Saint PetersburgReferences
- Arkharov AM, Marfenina IV, Mikulin EI. Cryogenic systems: Fundamentals of theory and calculation. Moscow: Mashinostroenie; 1988. (In Russ.)
- Colson D, Haquin N, Malochet M. Reduction of boil-off generation in cargo tanks of liquid natural gas carriers – Recent developments of Gaztransport & Technigaz (GTT) cargo containment systems. In: Proc. 25th World Gas Conference (WGC 2012). Kuala Lumpur; 2012:645–659.
- American Petroleum Institute (API). Consistent Methodology for Estimating Greenhouse Gas Emissions from Liquefied Natural Gas (LNG) Operations. Prepared by the LEVON Group, LLC., May 2015. [internet] Accessed: 11.02.2025. Available from: www.api.org
- Afon Y, Ervin D. An Assessment of Air Emissions from Liquefied Natural Gas Ships Using Different Power Systems and Different Fuels. Journal of the Air and Waste Management Association. 2008;58(3):404–411. doi: 10.3155/1047-3289.58.3.404
- Niu WC, Lin JC, Ju YL, Fu YZ. The daily evaporation rate test and conversion method for a new independent type B LNG mock-up tank. Cryogenics. 2020;111. doi: 10.1016/j.cryogenics.2020.103168
- Jiahang Li, Shengzhu Zhang, Qingshan Feng, et al. Simulation analysis and field verification of static evaporation characteristics of full-scale LNG storage tanks. Applied Thermal Engineering. 2024;253. doi: 10.1016/j.applthermaleng.2024.123721
- Yue Qianjin, Yu Peng, Yin Yuanchao, Gang Wang. Study on Characteristics of Dynamic Evaporation of LNG Tank Containers During Seawater Transportation. In: The 29th International Ocean and Polar Engineering Conference, Honolulu, Hawaii, USA, June 2019. ISOPE-I-19-251. Honolulu; 2019.
- Wang G., Xu J. Research on Evaporation Rate During LNG Tank Pressurization Process. In: Sun Z., Das P.K. (eds) Proceedings of the 11th International Conference on Energy Engineering and Environmental Engineering. ICEEEE 2024. Environmental Science and Engineering. Cham: Springer; 2025. doi: 10.1007/978-3-031-76208-6_25
- Tarovik OV, Reutsky AS, Topazh AG. Estimation of Evaporation Losses of Bunker LNG. World of transport and transportation. 2020;18(3):84–106. doi: 10.30932/1992-3252-2020-18-84-106
- ND No. 2-020101-039. Rules for the classification and construction of gas carriers. St. Petersburg: Editorial Board of the Russian Maritime Register of Shipping; 2004. (In Russ.)
- Baskakov SP. Transportation of liquefied gases by sea. St. Petersburg: Sudostroenie; 2001. (In Russ.)
- Meshcherin IV. Marine transportation of LNG. Calculation of the tanker fleet. Moscow: Gubkin Russian State University of Oil and Gas; 2019. (In Russ.)
- Barmin IV, Kunis ID. Liquefied natural gas yesterday, today, tomorrow. Moscow: Bauman Moscow State Technical University; 2009. (In Russ.)
- Pegov VI, Moshkin IYu. Mathematical modeling of processes of heat and mass transfer of hot gas jets with fluid during underwater vehicle launch. Chelyabinskiy Fiziko-Matematicheskiy Zhurnal. 2020;5(4(1)):451–462. (In Russ.) doi: 10.47475/2500-0101-2020-15405
- Simonov AM, Danilishin AM, Aksenov AA, et al. Calculation of the cycle of an air turbo-cooling machine based on a centrifugal compressor and a turbo expander. St. Petersburg: Polytech; 2020. (In Russ.)
- Ivanov VM, Kozhukhov YV, Danilishin AM. Calculation of the impellers head characteristics of the low-flow centrifugal compressor stages based on quasi-three-dimensional inviscid and viscous methods. AIP Conference Proceedings. 2019. doi: 10.1063/1.5122114
- Aksenov AA, Fateeva ES, Tuzova NM, et al. The flow research in vane diffusers of centrifugal compressors transonic stages. IOP Conf. Ser.: Mat. Sci. Engng. 2020;1001(1). doi: 10.1088/1757-899x/1001/1/012008
- Gileva LV, Kozhukhov YV, Gilev KV, et al. Numerical Investigation of Centrifugal Compressor Radial Inlet. IOP Conf. Ser.: Mat. Sci. Engng. 2020;1001(1). doi: 10.1088/1757-899X/1001/1/012006
- Danilishin AM, Kozhukhov YuV. Development of a parametric model of the flow part of a two-stage stage with an axial radial impeller of a centrifugal compressor. The territory of Neftegaz. 2019;1-2:12–18. (In Russ.)
- Danilishin A, Petrov A, Kozhukhov Y, et al. Fluid – structure interaction analyze for the centrifugal compressor 3D impellers. Danilishin A. IOP Conf. Ser.: Mat. Sci. Engng. 2020;1001(1). doi: 10.1088/1757-899X/1001/1/012010
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