Thermodynamic analysis of direct expansion configurations for electricity production by LNG cold energy recovery

Franco, Alessandro; Casarosa, Claudio

doi:10.1016/j.applthermaleng.2014.11.062

Cited by 92 publications

(40 citation statements)

References 23 publications

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“…For obtaining higher efficiency, it is necessary to introduce more complex thermodynamic cycles. Alessandro Franco et al proposed a new direct cycle with two or three pressure levels of LNG (Franco et al, 2015).…”

Section: Multi-pressure Lng Direct Expansion Cyclementioning

confidence: 99%

“…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%

“…1 (Franco et al, 2015). LNG is first compressed to a high pressure by pump (1-2), then evaporated in the evaporator (2-3), thereafter the vapor is used to drive the turbine-generator (3-4), and finally the vapor is supplied to the users (4).…”

Section: Basic Power Generation Cycles Utilizing Lng Cold Energymentioning

confidence: 99%

“…Before used, LNG must be vaporized again, during which large amount of cold energy, about 830 kJ/kg (Franco, 2015), will be released at 1 atm. It is increasingly important to take advantage of this cold energy, since the consumption of LNG is continuously increasing.…”

Section: Brief Introduction To Lngmentioning

confidence: 99%

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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: Multi-pressure Lng Direct Expansion Cyclementioning

confidence: 99%

Section: Lng Cold Energy Utilizationmentioning

confidence: 99%

Section: Basic Power Generation Cycles Utilizing Lng Cold Energymentioning

confidence: 99%

Section: Brief Introduction To Lngmentioning

confidence: 99%

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

Jia

Dai³

2018

Adv. Geo-Energy Res.

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“…LNG contains so much cold energy to be recycled during vaporization, and the energy from LNG releases can reach to 830~890kJ/kg. However, when it is regarded as fuel, the LNG cold energy recovery can be used to generate electricity [2] , air separation [3] , cryogenic grinding [4] and light hydrocarbon separation [5] etc. Making most use of LNG cold energy can't only save energy but also bring considerable economic benefits.…”

mentioning

confidence: 99%

Simulation and Analysis of the Combined Power Process of LNG Cold Energy Recovery for Electricity Production

Ping¹,

Lv²,

Shen³

2015

Proceedings of the 2015 International Power, Electronics and Materials Engineering Conference

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Abstract:The model of LNG cold energy recovery consisting of a Brayton cycle and a Rankine cycle is constructed in Aspen Plus. The effects of the inlet and outlet pressure of the turbines, ammonia-water flow rate, condensing temperature and the compressor outlet pressure to the thermal efficiency of the combined power cycle have all been performed sensitivity analysis. The result shows that the thermal efficiency increases with the turbines inlet pressure and the compressor outlet pressure. Meanwhile, decreasing the ammonia-water flow rate and condensing temperature can also achieve such effects. InstructionWith economy rapid development, natural gas [1] will be mainstream energy all over the world. In China, the storage of natural gas (NG) is abundant, but the origin is remote. The NG being liquefied is a convenient way to transport to other places. On the terminal to receive liquefied natural gas (LNG), LNG is pressed by pump, vaporized to gas in heaters, and delivered to users in the end. LNG contains so much cold energy to be recycled during vaporization, and the energy from LNG releases can reach to 830~890kJ/kg. However, when it is regarded as fuel, the LNG cold energy recovery can be used to generate electricity [2] , air separation [3] , cryogenic grinding [4] and light hydrocarbon separation [5] etc. Making most use of LNG cold energy can't only save energy but also bring considerable economic benefits.Many scholars have already researched on the combined power cycle. T. Miyazaki and Y.T. Kang [6] et al. have proposed a power cycle by combining waste heat with LNG cold energy and analyzed how ammonia water concentration, the inlet and outlet pressure of turbines and coefficient of heat transfer of condenser influence the combined power cycle. Wang and Li [7] et al. have a new study of the power cycle to recovery LNG cold energy with a low heat source. The result shows that the thermal and exergy efficiency increase as the heat source temperature and the turbine inlet pressure increases and condensing temperature decreases. Manuel Romero Gómez et al. [8] have presented a novel power cycle consisting of a combination of a closed Brayton cycle with a stream Rankine cycle, and analyzed the effects of some key parameters including the temperature at the compressor inlet, the compression ratio, the temperature at the Brayton cycle turbine and the LNG pressure to the cycle performance.In this paper, the model of the combined power cycle of LNG cold energy recovery is constructed in Aspen Plus. How the turbine inlet and outlet pressure, the compressor outlet pressure, ammonia water flow rate and condensing temperature influence the cycle energy efficiency are made sensibility analysis so that the evidence of improving the cycle efficiency can be presented. The Model of the Combined Power Cycle

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Adsorbed Natural Gas Storage for Onboard Applications

Wee

et al. 2021

Advanced Sustainable Systems

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Given its abundance and clean combustion, natural gas (NG) is one of the leading sources of energy to meet present demands. However, the storage and transportation of NG remain challenging. Besides the commonly used NG storage methods such as compression and liquefaction, adsorbed NG is an attractive alternative. Here, the requirements for vehicles to be powered by adsorbed natural gas (ANG) are examined. Despite top‐performing adsorbents and present‐day engineering solutions, there remain obstacles that prevent vehicles fueled by ANG from becoming commonplace. Herein, these challenges are highlighted to inspire engineering solutions for onboard ANG systems.

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Thermodynamic analysis of direct expansion configurations for electricity production by LNG cold energy recovery

Cited by 92 publications

References 23 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

Simulation and Analysis of the Combined Power Process of LNG Cold Energy Recovery for Electricity Production

Adsorbed Natural Gas Storage for Onboard Applications

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