Analysis of chosen aspects of a tank gassing-up process on board liquefied petroleum gas carrier. Part II

• Autorzy: Wieczorek Agnieszka

Identyfikatory

DOI

10.24425/ather.2021.137553

• Języki publikacji: EN

Abstrakty

EN

The paper presents a thermodynamic analysis of the removal of an inert gas from the tank using the vapor of liquefied petroleum gas cargo (called cargo tank gassing-up operation). For this purpose a thermodynamic model was created which considers two extreme cases of this process. The first is ‘piston pushing’ of inert gas using liquefied petroleum gas vapour. The second case is the complete mixing of both gases and removal the mixture from the tank to the atmosphere until desired concentration or amount of liquefied petroleum gas cargo in the tank is reached. On the example of nitrogen as inert gas and ethylene as a cargo, by thermodynamic analysis an attempt was made to determine the technical parameters of the process, i.e., pressure in the tank, temperature, time at which the operation would be carried out in an optimal way, minimizing the loss of cargo used for gassing-up. Calculations made it possible to determine the amount of ethylene used to complete the operation and its loss incurred as a result of total mixing of both gases.

Słowa kluczowe

EN

filling; tank; gassing-up; ideal gas; gas mixing; ethylene; nitrogen; inert gas; cargo; vapour

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2021
• Tom: Vol. 42, no 2
• Strony: 59--69
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Wieczorek Agnieszka

• Gdynia Maritime University, Morska 81–87, 81-225 Gdynia, Poland

Bibliografia

• [1] Włodarski J.K., Ed.: Safety for the Transport of Liquefied Gases on Tankers. Handbook for Officers of Sea-Going Ships. Staff Training College S.C. of the Maritime University, Gdynia 1993 (in Polish).
• [2] Technical documentation of the Owner Navigator Gas, London.
• [3] SIGTTO: Liquefied Gas Handling Principles on Ships and in Terminals (4th Edn.). Witherby Seamanship, London 2016.
• [4] McGuire and White: Liquefied Gas Handling Principles On Ships and in Terminals (3rd Edn.). Witherby, London 2000.
• [5] NGC: Transportation of Condensed Gases by Sea. Correspondence Course. Norwegian Gas Carriers AS, 2002.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).