Call number:
ZSP-201-77/15
In:
CRREL Report, 77-15
Description / Table of Contents:
A laboratory experimental study was conducted on a scale model of an annular flow ice-water heat sink to be used to store the waste heat produced in a hardened defense installation operating in an isolated mode. The study examined: 1) scaling relationships for predicting the performance of prototype units using data from scale models, 2) the accuracy of a computer prediction technique developed during an earlier study, 3) the heat transfer phenomenon at the ice-water interface, and 4) some practical aspects related to the operation of a prototype installation. The scaling relationships and the computer program were found to be sufficiently accurate for use in developing a prototype sink design. During operation the scale model sink provided an almost constant low temperature source of coolant water for approximately one-half its useful life and thereafter behaved like an ordinary stored water reservoir type heat sink. No significant operational problems were discovered.
Type of Medium:
Series available for loan
Pages:
vii, 54 Seiten
,
Illustrationen
Series Statement:
CRREL Report 77-15
URL:
https://hdl.handle.net/11681/9514
Language:
English
Note:
CONTENTS
Abstract
Preface
Nomenclature
Conversion factors: U.S. customary to metric units of measurement
Introduction
Description of experiment
Apparatus
Test procedure
Experimental results
Summary of experimental tests
Influence of coolant water flow rates
Approximation of the rate of melting
Comparison of experimental and computed results
Comparative analysis of the model sinks
Approximation of the heat transfer coefficient
Conclusions and recommendations
Literature cited
Appendix A. Experimental data, heat sink Model II
Appendix B. Heat sink scaling and similarity relationships
Appendix C. Derivation of the relationships for the heat transfer coefficient, Reynolds and Nusselt numbers
Appendix D. Determination of freezing rates and refrigeration loads
Appendix E. Approximation of stresses in the heat sink tank
Location:
AWI Archive
Branch Library:
AWI Library
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