Thermodynamic analysis of the regasification of LNG for the desalination of sea water

Cravalho, E.G.; McGrath, John; Toscano, W. M.

doi:10.1016/0011-2275(77)90272-7

Cited by 28 publications

(7 citation statements)

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“…The cold energy of LNG can be applied to all the processes that need cold, such as power generation (Oshima et al, 1978;Griepentrog et al, 2008;Shi et al, 2009;Shi et al, 2010;Liu et al, 2012;Song et al, 2012;Choi et al, 2013;Dong et al, 2013;Rao et al, 2013;Wang et al, 2013;Zhang et al, 2013;Arsalis et al, 2014;Gmez et al, 2014;Shu et al, 2014;Franco et al, 2015;Stradioto et al, 2015;Gmez et al, 2016;Sung et al, 2016;Bao et al, 2017;Ghaebi et al, 2018), cryogenic air separation (Bian et al, 2011;Xu et al, 2013;Xu et al, 2014;Mehrpooya et al, 2015;Zheng et al, 2015;Mehrpooya et al, 2016;Tesch et al, 2016;Ebrahimi et al, 2017;, seawater desalination (Cravalho et al, 1977;Shaik et al, 2006;Wang et al, 2012;Cao et al, 2015;Chang et al, 2016;Cherchi et al, 2017;Lin et al, 2017), cold storage (Messineo et al, 2008;Messineo et al, 2011), refrigeration (Mehmet, 2002;Kalinowski et al, 2009;He et al, 2015;…”

Section: Lng Cold Energy Utilizationmentioning

confidence: 99%

Review on recent liquefied natural gas cold energy utilization in power generation cycles

Jia

Dai³

2018

Adv. Geo-Energy Res.

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Liquefied natural gas (LNG) needs to be gasified before supplied to the users, and considerable amount of cold energy, about 830 kJ/kg, will be released during this process. Recovery of LNG cold energy bears significance of energy-saving and environmental protection. Among the many ways of using LNG cold energy, power generation is the most effective and suitable one for large-scale applications. Many novel power generation cycles have been designed for utilizing LNG cold energy so far. This paper reviews the recent researches on LNG cold energy utilization in power generation, and discusses 15 novel power generation cycles utilizing LNG cold energy.

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Section: Lng Cold Energy Utilizationmentioning

confidence: 99%

Review on recent liquefied natural gas cold energy utilization in power generation cycles

Jia

Dai³

2018

Adv. Geo-Energy Res.

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“…The system included a heat engine, heat pump, LNG heat exchanger and two seawater heat exchangers. The maximum theoretical fresh water output of the system was about 6.7 kg (water) kg (LNG) -1 [24].…”

Section: Introductionmentioning

confidence: 95%

Research on the Application of Cold Energy of Largescale Lng-Powered Container Ships to Refrigerated Containers

Deng

Yang

et al. 2021

Polish Maritime Research

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With the aim of considering the problem of excess fuel cold energy and excessive power consumption of refrigerated containers on large LNG-powered container ships, a new utilisation method using LNG-fuelled cold energy to cool refrigerated containers in cargo holds is proposed in this study, and the main structure of the cold storage in the method is modelled in three dimensions. Then, combined with the different conditions, 15 different combination schemes of high temperature cold storage and low temperature cold storage are designed to utilise the cold energy of LNG fuel, the exergy efficiency and cold energy utilisation rate calculation model of the system is established. The simulation tool ‘Aspen HYSYS’ is used to simulate and calculate the exergy efficiency and cold energy utilisation rate of the system under 15 combinations, verifying the feasibility of the scheme. According to the characteristics of such a ship’s cross-seasonal navigation routes and the number of refrigerated containers loaded in different ports, the combination schemes of the number of low-temperature cold storage and high-temperature cold storage are selected. Thus, the average exergy efficiency and cold energy utilisation rate of the whole line is obtained, which proves that LNG-powered container ships could effectively utilise the cold energy of LNG. By calculating the total electric energy consumed by refrigerated containers on the whole sailing route, before and after the adoption of the LNG cold energy method, it is found that the adoption of this new method can promote the realisation of energy saving and emission reduction of ships.

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“…Mehrpooya et al [ 6 ] showed that compared with conventional cryogenic air separation, the energy consumption of air separation process using LNG cold energy was reduced by more than 55.6%. Cravalho et al [ 7 ] first proposed a net zero work system to recover cold energy from the regasification process of LNG for seawater desalination at the end of 70 s. So far, there have been some researches on seawater desalination using hybrid methods combined with LNG cold energy. [ 8,9 ] The LNG regasification process can also be integrated into the cryogenic CO 2 capture process as discussed by Zhao et al [ 10 ] Cryogenic power generation is currently the most widely used application of LNG cold energy.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic Analysis of a Peak Shaving Power Station based on the Liquid Air Energy Storage System with the Utilization of Liquefied Natural Gas in the Liquefied Natural Gas Terminal

Guo

et al. 2021

Energy Tech

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The integrated system of regasification of liquefied natural gas (LNG) and liquid air energy storage (LAES) has advantages of improving the LAES system efficiency and energy grade matching utilization of the LNG cold energy. But the influence of the cold energy storage efficiency on the combined system is ambiguous and the decoupling mechanism between the energy storage and release processes with the addition of the LNG cold energy was seldom investigated. Thus, a hybrid LAES system using LNG is proposed. The thermodynamic model is established to analyze the system performance. The influence of key parameters on the system and the removal of the coupling effect are originally analyzed. The results show that the electricity storage efficiency (ηese) and exergy efficiency (ηexe) of the typical operational condition can reach 107.3% and 49.4%, respectively. With the cold energy storage efficiency varying from 0% to 100%, the ηese and ηexe increase by 18.0% and 4.4% averagely. Furthermore, to investigate the influence mechanism of introducing LNG to the LAES system, the performance of four different systems is compared. With the decoupling between the energy storage and release processes, the ηese is improved obviously and the ηexe can be maintained at a high level.

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Thermodynamic analysis of the regasification of LNG for the desalination of sea water

Cited by 28 publications

References 0 publications

Review on recent liquefied natural gas cold energy utilization in power generation cycles

Review on recent liquefied natural gas cold energy utilization in power generation cycles

Research on the Application of Cold Energy of Largescale Lng-Powered Container Ships to Refrigerated Containers

Thermodynamic Analysis of a Peak Shaving Power Station based on the Liquid Air Energy Storage System with the Utilization of Liquefied Natural Gas in the Liquefied Natural Gas Terminal

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