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Numerical dynamic simulation and analysis of a lithium bromide/water long-term solar heat storage system

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Jan 2012 France Publisher:Elsevier BVJournal:Energy, volume 37, pages 346-358 (issn: 0360-5442, Copyright policy )
Authors: N’tsoukpoe, K. Edem; Le Pierrès, Nolwenn; Luo, Lingai;

doi: 10.1016/j.energy.2011.11.020

Numerical dynamic simulation and analysis of a lithium bromide/water long-term solar heat storage system

Abstract

With a view towards better efficiency in renewable energy utilisation, particularly solar energy, the authors study a long-term solar thermal energy storage based on water absorption by a lithium bromide aqueous solution. After a description of the process, the system dynamic simulation model is detailed and used to investigate the influence of certain parameters (heat exchanger size, solution flow rate, absorption percentage) and operating conditions (heat supply temperature to the building, crystallisation ratio, heat need) on the system performance (storage density, thermal efficiency, etc.). The analysis of simulations made for a low-consumption building in Chambery shows that the solution flow rate is a critical parameter in the process performance. It also appears that crystallisation in the solution storage tank increases the storage density more than three times. The simulation results are used in the design of a prototype that is under experimentation for validation of the model.

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France
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Keywords

/dk/atira/pure/subjectarea/asjc/2200/2215; name=Building and Construction, /dk/atira/pure/subjectarea/asjc/2200/2209; name=Industrial and Manufacturing Engineering, Absorption systems, /dk/atira/pure/subjectarea/asjc/2100/2105; name=Renewable Energy, Sustainability and the Environment, [SPI]Engineering Sciences [physics], /dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy; name=SDG 7 - Affordable and Clean Energy, /dk/atira/pure/subjectarea/asjc/2300/2310; name=Pollution, Solar energy, /dk/atira/pure/subjectarea/asjc/2100; name=Energy(all), /dk/atira/pure/subjectarea/asjc/2600/2611; name=Modelling and Simulation, /dk/atira/pure/core/keywords/559804261; name=Chemistry, /dk/atira/pure/subjectarea/asjc/2100/2103; name=Fuel Technology, /dk/atira/pure/core/keywords/energieforschung; name=Energy research, Lithium bromide/water, 004, Long-term thermal storage, /dk/atira/pure/subjectarea/asjc/2200/2208; name=Electrical and Electronic Engineering, Energy efficiency, /dk/atira/pure/subjectarea/asjc/2300/2308; name=Management, Monitoring, Policy and Law, /dk/atira/pure/subjectarea/asjc/2200/2205; name=Civil and Structural Engineering, /dk/atira/pure/subjectarea/asjc/2200/2210; name=Mechanical Engineering, Dynamic simulation, /dk/atira/pure/subjectarea/asjc/2100/2102; name=Energy Engineering and Power Technology

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    		 96
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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
96
Top 1%
Top 10%
Top 10%
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