Analysis possibilities of cost reduction related to boil-off fuel gas being carried on LNG gas carriers

• Autorzy: Giernalczyk M.

Warianty tytułu

PL

Analiza możliwości redukcji kosztów związanych z odparowaniem przewożonego ładunku na gazowcach typu LNG

• Języki publikacji: PL

Abstrakty

EN

Gas carried on LNG carriers is liquefaction gas at ambient pressure and temperature minus 163oC degree is subject to boil-off and causing increase in pressure. This phenomenon makes danger of explosion. The simplest possibility to circumvent the foresaid event is to release-liquefied gas to atmosphere. However, the mentioned way causes losses of cargo and air pollution. There is an option to re-condensate gas again nevertheless to do it extra energy is required. Method that is more rational is to use boil-off fuel gas as propulsion energy in diesel engines, gas and steam turbines. This paper describes exploitation costing of main propulsion on LNG carriers trying to find out the best solution. There are presented fuel gas supply system as well various type of engine driven by fuel gas. Moreover, author presents further design development of LNG carriers. Possibilities of cost reduction related to boil-off fuel gas, the Moss RS standard setup for gas reliquefaction system, example of dual fuel diesel engines and electric propulsion, basic design concept for two compressor units 100% type 6LP250-5S1, diagram of COGES system, thermal efficiencies for the different propulsion options, technical data of some present dual-fuel engines, as well two-stroke propulsion recommendations for LNG carriers are illustrated in the paper.

Słowa kluczowe

PL

transport morski; gaz naturalny; gazowce LNG; spalinowe silniki tłokowe; turbiny gazowe; turbiny parowe

EN

sea transportation; boil-off fuel gas; LNG carriers; diesel engines; gas and steam turbines

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2007
• Tom: Vol. 14, No. 2
• Strony: 153--160
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Giernalczyk M.

• Akademia Morska w Gdyni, Katedra Siłowni Okrętowych Morska 83, 81-225 Gdynia, Poland tel.:[phone],

Bibliografia

• [1] Chądzyński, W., Trendy rozwoju układów napędowych gazowców LNG, Zeszyty Naukowe nr 10(82) Akademii Morskiej w Szczecinie, IV Międzynarodowa Konferencja Naukowo-Techniczna Explo-Ship 2006, pp. 139-150, Szczecin 2006.
• [2] Linwood, J., Jong-Pil Ha, Aabo, K, Laursen, R.S., LNG Gas Carrier with High-pressure Gas Engine Propulsion Application, GasTech 2006 Dubai,United Arab Emirates, 2006.
• [3] MAN Project Guide for Marine Plants. Dual-fuel engine 51/60. Preliminary version.
• [4] Materiały firmowe MAN, Wartsila i inne.
• [5] Wartsila 32DF, 50DF Technology Reviev.
• [6] Żmudzki, S., Perspektywy wykorzystania gazu ziemnego w silnikach okrętowych, Zeszyty Naukowe nr 1(73) A M w Szczecinie, Explo-Ship 2006, pp. 517-528, Szczecin 2004.