Thermodynamic Analysis of Hydrocarbon Refrigerants-Based Ethylene BOG Re-liquefaction System

作     者：Boumedienne M. Beladjine Ahmed Ouadha Yacine Addad 

作者机构：Laboratoire des Sciences et Ingenierie Maritimes Faculte de Genie Mecanique Universite des Sciences et de la Technologie Mohamed BOUDIAF d'Oran Oran E1-Mnouar 31000 Oran Algerie Khalifa University of Science Technology and Research P.O. Box 127788 Abu Dhabi UAE 

出 版 物：《Journal of Marine Science and Application》 (船舶与海洋工程学报（英文版）)

年 卷 期：2016年第15卷第3期

页      面：321-330页

核心收录：

学科分类：08[工学] 0823[工学-交通运输工程] 

主　　题：ethylene BOG re-liquefaction thermodynamic analysis hydrocarbon refrigerants 

摘      要：The present study aims to make a thermodynamic analysis of an ethylene cascade re-liquefaction system that consists of the following two subsystems: a liquefaction cycle using ethylene as the working fluid and a refrigeration cycle operating with a hydrocarbon refrigerant. The hydrocarbon refrigerants considered are propane(R290), butane(R600), isobutane(R600a), and propylene(R1270). A computer program written in FORTRAN is developed to compute parameters for characteristic points of the cycles and the system s performance, which is determined and analyzed using numerical solutions for the refrigerant condensation temperature, temperature in tank, and temperature difference in the cascade condenser. Results show that R600 a gives the best performance, followed by(in order) R600, R290, and R1270. Furthermore, it is found that an increase in tank temperature improves system performance but that an increase in refrigerant condensation temperature causes deterioration. In addition, it is found that running the system at a low temperature difference in the cascade condenser is advantageous.