Thermal Energy Storage in Phase Change Material.

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Abstract:

The present study deals with an experimental investigation of low temperature thermal storage based on macroencapsulation of Phase Change Material PCM. The storage performance capabilities of capsule bed, tube bank and tubular single-pass heat exchanger are compared. The tests are conducted on the VKI Solar Utility Network SUN which is a closed loop facility designed to study air heating systems. An original data acquisition chain based on two conversing microprocessors is developed to carry out mass flow, pressure drop and temperature measurements. The experimental results are interpreted on the basis of comparison with numerical predictions and they allow to draw the following conclusions. Each type of matrix has its own range of operation for practical application but from a heat transfer standpoint, the PCM capsule packing unit is strongly recommended. It is suggested to extend this investigation to the effect of Reynolds number to find optimum range for thermo-mechanical efficiency.

Author(s):
White, P. ; Buchlin, J-m.
Author Organization(s):
VON KARMAN INST FOR FLUID DYNAMICS RHODE-SAINT-GENESE (BELGIUM)
Descriptive Note:
Final scientific rept. 1 Feb 81-31 Jan 82,
Pagination:
0083

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
EOARD-TR-82-8
Contract/Grant Number(s):
AFOSR-81-0119
Task Number(s):
D1
Project Number(s):
2301
Monitor Series:
TR-82-8
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_6_Net Centric; JCA_1.2.7_Experimentation; JCA_1.2.5_Lessons Learned; JCA_4.6_Engineering
Modernization Areas:
Microelectronics
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*Heat exchangers, *Energy storage, *Heat transfer, *Thermal radiation, Predictions, Mass flow, Space capsules, Low temperature, Data links, Reynolds number, Phase transformations, Optimization, Air, Heating, Numerical analysis, Closed loop systems
Field(s)/Group(s):
Air Conditioning, Heating, Lighting and Ventilating
Keyword(s):
Thermal energy storage, Phase change materials, Thermal storage, WUAFOSR2301D1120, PE61102F
Report Date:
1982 Mar 01