The comparison of theoretical to practical cargo loading rate of butane - analysis of LPG carrier reliquefaction plant

• Autorzy: Nanowski D.
• Języki publikacji: EN

Abstrakty

EN

This paper presents a performance of reliquefaction plant analysis in order to assess possible cargo loading rate for Butane (C4H10). The highest cargo loading rate is essential in use of LPG carriers because of economical point of view. Loading and discharging cargo time at ports substantially influences on a financial effect of the ship owner. Because of different cargo grades, which number is continuously increasing, crucial is to know real efficiency of gas plan, before signing some contract with customer. On board these types of ships the highest efficiency of reliquefaction plant is crucial. After short description of fully refrigerated gas carrier, theoretical data of analysed ship, taken from ship documentation is shown. Taking into account this data, expected cargo compressors parameters and cargo loading rate are discussed, explained and assumed. In next step, real ambient Butane loading process carried out on board LPG carrier is described. All essential values and reliquefaction plant readings, taken in loading port are presented. The comparison of theoretical result based on available documentation to practical effects obtained in the port is performed. Analysis, mainly taking into account gas plan, answers if it operated with the highest possible efficiency and met cargo loading parameters expected according to ship manuals. Conclusions are discussed.

Słowa kluczowe

EN

LPG carrier; cargo loading rate; CC4 – cargo; Butane; reliquefaction plant

• 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: 2013
• Tom: Vol. 20, No. 1
• Strony: 227--231
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Nanowski D.

• Gdynia Maritime University, Department of Marine Propulsion Plants Morska Street 81-87, 81-225 Gdynia, Poland tel.:[phone], fax: [phone]

Bibliografia

• [1] Bohdal, T., Charun, H., Czapp, M., Urządzenia chłodnicze sprężarkowe parowe, Wydawnictwo Naukowo-Techniczne, Warszawa 2003.
• [2] Coolpack 1.50 IPU Technology Development Denmark.
• [3] Mc Guire and White, Liquefied gas handling principles on ships and in terminals, Witherby &Co, London 2000.
• [4] Nanowski, D., Transport mieszaniny propan-etan na statku LPG bez obiegu kaskadowego, Technika Chłodnicza i Klimatyzacyjna, Wyd. Masta, Vol. 5, Gdansk 2013.
• [5] Nanowski, D., Gas plant of Ethylene gas carrier and two stage compression optimization of Ethylene as a cargo based on thermodynamic analysis, Journal of Polish CIMAC, Vol. 7, pp183-190, Gdansk 2012.
• [6] Nanowski, D., Wybrane parametry procesów termodynamicznych rzeczywistego obiegu kaskadowego wykorzystywanego do morskiego transportu etylenu, Technika Chłodnicza i Klimatyzacyjna, Wyd. Masta, Vol 4, pp182-185, Gdansk 2012.
• [7] Ship owner/Manufacturer data – London 2000
• [8] Vauldon, A., Liquefied gases. Marine transportation and storage, Witherby &Co, London 2000.