Improvement of the LNG (liquid natural gas) regasification efficiency by utilizing the cold exergy with a coupled absorption - ORC (organic Rankine cycle)

被引：38
|
作者：
Tomkow, Lukasz [1 ]
Cholewinski, Maciej [1 ]
机构：
[1] Wroclaw Univ Technol, PL-50370 Wroclaw, Poland
来源：
ENERGY | 2015年 / 87卷
关键词：
LNG; Exergy utilization; Organic Rankine cycle; Energy production; TEMPERATURE WASTE HEAT; POWER CYCLE; CRYOGENIC EXERGY; THERMODYNAMIC ANALYSIS; BRAYTON CYCLE; ENERGY; RECOVERY; SYSTEM; GASIFICATION; OPTIMIZATION;
D O I：
10.1016/j.energy.2015.05.041
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Regasification is the process of evaporating and compressing LNG (liquid natural gas) so that the product meets the parameters of a local distribution network. During this process large amounts of potentially useful exergy are destroyed. There were several proposals of using this potential in practice. In this paper the methods for electric energy production using cold exergy from a LNG stream are investigated. The new improvement is proposed for an absorption power cycle by coupling it with an organic Rankine cycle. The new components for working fluid are evaluated. The proposed solution is compared to existing ones and analyzed using a computer model. A significant increase of exergetic efficiency and power output is observed when compared to previous solutions. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：645 / 653
页数：9
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