NDLI: Active heat exchange system development for latent heat thermal energy storage (Document No: 19790013383)

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Active heat exchange system development for latent heat thermal energy storage (Document No: 19790013383)

Content Provider	NASA Technical Reports Server (NTRS)
Author	Knowles, G. R. Lefrois, R. T. Budimir, J. Mathur, A. K.
Copyright Year	1979
Description	Active heat exchange concepts for use with thermal energy storage systems in the temperature range of 250 C to 350 C, using the heat of fusion of molten salts for storing thermal energy are described. Salt mixtures that freeze and melt in appropriate ranges are identified and are evaluated for physico-chemical, economic, corrosive and safety characteristics. Eight active heat exchange concepts for heat transfer during solidification are conceived and conceptually designed for use with selected storage media. The concepts are analyzed for their scalability, maintenance, safety, technological development and costs. A model for estimating and scaling storage system costs is developed and is used for economic evaluation of salt mixtures and heat exchange concepts for a large scale application. The importance of comparing salts and heat exchange concepts on a total system cost basis, rather than the component cost basis alone, is pointed out. The heat exchange concepts were sized and compared for 6.5 MPa/281 C steam conditions and a 1000 MW(t) heat rate for six hours. A cost sensitivity analysis for other design conditions is also carried out.
File Size	4628266
Page Count	124
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19790013383
Archival Resource Key	ark:/13960/t7jq5s77v
Language	English
Publisher Date	1979-02-01
Access Restriction	Open
Subject Keyword	Energy Production And Conversion Latent Heat Economic Analysis Chemical Analysis Molten Salts Heat Exchangers Thermal Energy Energy Technology Systems Engineering Heat Storage Mathematical Models Eutectic Alloys Cost Analysis Heat Transfer Energy Storage Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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