EFFICIENCY ANALYSIS OF WORK PRODUCTION IN LNG REGASIFICATION

Authors

  • А. И. Пятничко Институт газа НАН Украины, ул. Дегтяревская, 39, г. Киев, Украина, 03113, Ukraine
  • Л. Р. Онопа Институт газа НАН Украины, ул. Дегтяревская, 39, г. Киев, Украина, 03113, Ukraine
  • Г. К. Лавренченко Украинская ассоциация производителей технических газов «УА-СИГМА», а/я 271, г. Одесса, Украина, 65026, Ukraine

DOI:

https://doi.org/10.18198/j.ind.gases.2010.0495

Keywords:

Cold, Exergy, Work, Reversible processes, LNG regasification, A mixture of hydrocarbons, Methane, Ethane, Propane, Butane, Turboexpander, Q-T-diagram, Exergic efficiency coefficient

Abstract

At present much liquefied natural gas is being supplied by methane carriers to the receiving terminals of this cryogenic power sources in countries-importers.The processes of LNG regasification can be carried out simultaneously with the work production. A thermodynamic model of reversible processes in which cold exergy transforms into work is built. It is shown that the peak work got in the reversible processes of regasification, is determined as a difference of exergies at the end and beginning of the process. The unit scheme in which the exergy of LNG cold is used for getting work has been examined. Different mixtures on the base of methane, ethane, propane and butane were applied in a force loop. The best mixtures were got in the application of binary mixtures of propane with butane. Exergic efficiency coefficient of the unit is 21,4 %.

Author Biographies

А. И. Пятничко, Институт газа НАН Украины, ул. Дегтяревская, 39, г. Киев, Украина, 03113

A.I. Piatnichko

Л. Р. Онопа, Институт газа НАН Украины, ул. Дегтяревская, 39, г. Киев, Украина, 03113

L.P. Onopa

Г. К. Лавренченко, Украинская ассоциация производителей технических газов «УА-СИГМА», а/я 271, г. Одесса, Украина, 65026

G.K. Lavrenchenko

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Issue

No. 3 (2010): Технические газы

Section

PROCESSES, CYCLES, SCHEMES AND THE EQUIPMENT OF REFRIGERATION AND CRYOGENIC SYSTEMS

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