Specific hazards analysis of the LNG regasification plants on gas carriers

Authors: V.K. Shurpyak, A.A. Vlasov

Abstract

The article provides information about the LNG regasification plants on ships, gas carriers and floating FSRU. The main elements of the regasification system are reviewed and described in terms of specific hazards. The regasification system components, functionality of its elements and typical thermodynamic processes are analyzed.
The estimation of heat and electricity input necessary for the regasification has been made. As a result of the review and assessment of special hazards of the regasification process two specific dangers have been highlighted:
• LNG leak under high pressure with the cloud formation;
• malfunction of the LNG heating and evaporation system.
The principles of minimizing the risk of LNG leakage at high pressure taken into account in the draft requirements of the Register Rules for FSRU vessels are discussed. The article presents the main points of the draft requirements for regasification plants, realized in the new edition of Rules for the Classification and Construction of Ships Carrying Liquefied Gases in Bulk in 2016.

Keywords: liquefied natural gas, gas carriers, LNG terminals, regasification, regasification associated hazards, development of the Register requirements.


References

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2. GOST R 56400-2015 Neftyanaya i gazovaya promyshlennosf. Proektirovanie i ekspluatatsiya morskikh terminalov szhizhennogo prirodnogo gaza. Obshchie trebovaniya [State Standerd 564002015 Petroleum and natural gas industries. Design and operation of offshore terminals of liquefied natural gas. General requirements]. (In Russian)
3. A.N. Blinkov, A.A. Vlasov, V.K. Shurpyak. Review of Gas Fuel Applicationfor Marine Propulsion Plants. Nauchno-tekhnicheskiy sbornik Rossiyskogo morskogo registra sudokhodstva [Research Bulletin by Russian Maritime Register of Shipping], no. 34, 2011, pp. 177 - 197. (In Russian)
4. ABS Rules for building and classing steel vessels, 2014.
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6. Det Norske Veritas (DNV). Rules for Classification of Ships. Part 6, chapter 30, Regasification. Det Norske Veritas. Hovik, Norway, January 2013.

About authors

Shurpyak Vladimir - PhD, FAI "Russian Maritime Register of Shipping",  8, Dvortsovaya Naberezhnaya, 191186, St. Petersburg, Russia
shurpyak.vk@rs-class.org
tel . +7 (812) 314-39-85


Vlasov Andrey - INTARY Ltd., 38 A, Bering str., 199397, St. Petersburg, Russia 
cng@intari.com
tel. cng@intari.com


Issue: 44/45 (2016)






For citation: V.K. Shurpyak, A.A. Vlasov. Specific hazards analysis of the LNG regasification plants on gas carriers. Research Bulletin by Russian Maritime Register of Shipping. 2016, No. 44/45, pp. 111-120.

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UDC:  629.5.062; 629.543
Pages:  111-120