The exploitation of the physical exergy of liquid natural gas by closed power thermodynamic cycles. An overview

Invernizzi, Costante Mario; Iora, Paolo

doi:10.1016/j.energy.2015.09.020

Cited by 34 publications

(11 citation statements)

References 30 publications

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“…Given the lack of natural cold sinks in cooling-dominated regions, artificial cold from cryogens such as liquefied natural gas (LNG) for direct DC is a potential option that may take greater importance than in moderate climates. The cold exergy that can be practically recovered during LNG regasification at import terminals before gas distribution is of approximately 350-370 kJ/kg/s of LNG [78,79]. (Thermal exergy recovery, assuming an initial LNG state at~70-80 bar for NG distribution and (−160)-(−165) • C.) With a global trade of 293 Mt in 2017, LNG currently represents 9.8% of the global gas supply [80].…”

Section: Artificial Coldmentioning

confidence: 99%

Sustainable District Cooling Systems: Status, Challenges, and Future Opportunities, with Emphasis on Cooling-Dominated Regions

Eveloy

Ayou

2019

Energies

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A review of current and future district cooling (DC) technologies, operational, economic, and environmental aspects, and analysis and optimization methodologies is presented, focusing on the demands of cooling-dominated regions. Sustainable energy sources (i.e., renewable, waste/excess electricity and heat, natural/artificial cold) and cooling/storage technology options with emphasis on heat-driven refrigeration, and their integrations in published DC design and analysis studies are reviewed. Published DC system analysis, modeling, and optimization methodologies are analyzed in terms of their objectives, scope, sustainability-related criteria, and key findings. The current and future development of DC in the Gulf Cooperation Council (GCC) region, a major developing cooling-dominated market, is examined more specifically in terms of current and future energy sources and their use, and economic, environmental, and regulatory aspects, with potential technical and non-technical solutions identified to address regional DC sustainability challenges. From the review of published DC design and analysis studies presented, collective research trends in key thematic areas are analyzed, with suggested future research themes proposed towards the sustainability enhancement of DC systems in predominantly hot climates.

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Section: Artificial Coldmentioning

confidence: 99%

Sustainable District Cooling Systems: Status, Challenges, and Future Opportunities, with Emphasis on Cooling-Dominated Regions

Eveloy

Ayou

2019

Energies

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“…Similarly, the increase of the critical point of fluids allowed by the use of mixtures could also enable the more efficient use of condensing cycles instead of supercritical ones in very low-temperature applications. A typical example is represented by power cycles which reject their thermal heat into a stream of liquefied natural gas (cool source of the cycle), in order to convert it from liquid to vapour phase, from ambient temperature to À150 C [8]. Currently, the use of particularly efficient pure fluids (e.g.…”

Section: Co 2 Condensation Cyclesmentioning

confidence: 99%

Inert and Reactive Working Fluids for Closed Power Cycles: Present Knowledge, Applications and Open Researches

Lasala¹,

Privat²,

Jaubert³

2018

Organic Rankine Cycle Technology for Heat Recovery

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The possibility of selecting the working fluid of a closed power cycle represents one of the most important levers to maximise the efficiency and to optimise the design of this technology. This chapter is intended to provide a description of the present state of knowledge on the effects that fluid thermo-physical properties, such as molecular complexity and molecular mass, have on the design and performance of cycle components. With a view to allow for accounting for multicomponent inert and reactive working fluids along the optimisation process, the chapter then presents the main outstanding scientific barriers which need to be overcome.

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“…Studies on mixtures such as ammonia-water as a working fluid in RTC cycles [4,18] have also been reported. Recent and extensive review works [1,19] compares efficiencies of RTC that differ in: cycle configuration, working fluid, heat source, maximum temperatures and natural gas pressure. Unconventional cascade cycles for maximizing the specific power by increasing the cycle complexity are currently being reported [10].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic analysis for working fluids comparison in Rankine-type cycles exploiting the cryogenic exergy in Liquefied Natural Gas (LNG) regasification

Ferreira

Catarino

Vaz

2017

Applied Thermal Engineering

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The exploitation of the physical exergy of liquid natural gas by closed power thermodynamic cycles. An overview

Cited by 34 publications

References 30 publications

Sustainable District Cooling Systems: Status, Challenges, and Future Opportunities, with Emphasis on Cooling-Dominated Regions

Sustainable District Cooling Systems: Status, Challenges, and Future Opportunities, with Emphasis on Cooling-Dominated Regions

Inert and Reactive Working Fluids for Closed Power Cycles: Present Knowledge, Applications and Open Researches

Thermodynamic analysis for working fluids comparison in Rankine-type cycles exploiting the cryogenic exergy in Liquefied Natural Gas (LNG) regasification

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