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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 721 records · Page 40

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DOE OSTI2017

Using Substructuring Techniques to Account for Boundary Condition Differences in Environmental Testing.

Abstract not provided.

Harvie, Julie Marie↗

DOE OSTI2016

An Analytical Methodology to Evaluate Thermal-Hydraulic Performance of Compact Heat Exchangers, Accounting for Heat Loss

High efficiency and compactness, offered by the Printed Circuit Heat Exchanger (PCHE) makes it a strong candidate for use as an Intermediate Heat Exchanger (IHX) and/or Secondary Heat Exchanger (SHX) for Advanced High Temperature Reactor (AHTR) systems and also the Very High Temperature Reactor (VHTR). Idaho National Laboratory (INL) has been developing a computer code for the PCHE design and analysis [1], and will construct an experimental loop to evaluate the thermal hydraulic performance of PCHEs [2]. In order to correctly compare experimental results with the simulations, the extraneous heat losses from the PCHEs must be determined and incorporated. These heat exchangers operate at high temperature and consequently, despite the use of external thermal insulation, experience non-negligible heat losses to the surroundings. The objective of this work is to develop an analytical methodology for quantification of these heat losses based on experimental data to evaluate and predict the performance of the heat exchanger accurately.

99 GENERAL AND MISCELLANEOUS↗

DOE OSTI2014