NDLI: Active heat exchange system development for latent heat thermal energy storage

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Active heat exchange system development for latent heat thermal energy storage

Content Provider	NASA Technical Reports Server (NTRS)
Author	Lefrois, R. T. Mathur, A. K.
Copyright Year	1980
Description	Five tasks to select, design, fabricate, test and evaluate candidate active heat exchanger modules for future applications to solar and conventional utility power plants were discussed. Alternative mechanizations of active heat exchange concepts were analyzed for use with heat of fusion phase change materials (PCMs) in the temperature range of 250 to 350 C. Twenty-six heat exchange concepts were reviewed, and eight were selected for detailed assessment. Two candidates were selected for small-scale experimentation: a coated tube and shell heat exchanger and a direct contact reflux boiler. A dilute eutectic mixture of sodium nitrate and sodium hydroxide was selected as the PCM from over 50 candidate inorganic salt mixtures. Based on a salt screening process, eight major component salts were selected initially for further evaluation. The most attractive major components in the temperature range of 250 to 350 C appeared to be NaNO3, NaNO2, and NaOH. Sketches of the two active heat exchange concepts selected for test are given.
File Size	24901767
Page Count	227
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19800021356
Archival Resource Key	ark:/13960/t77t2hg0d
Language	English
Publisher Date	1980-04-01
Access Restriction	Open
Subject Keyword	Energy Production And Conversion Fabrication Latent Heat Inorganic Compounds Heat Storage Energy Conversion Storage Tanks Heat Exchangers Cost Analysis Heat of Fusion Sodium Compounds Thermal Energy 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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