Pelletization and roll encapsulation of thermal-energy-storage materials. Final report, September 30, 1980-December 31, 1981
Technical Report
·
OSTI ID:6344327
A new encapsulation concept for phase change materials (PCMs) for use in thermal storage applications has been investigated. The process involves compaction of the PCMs into tablets up to 1.3 cm (0.5 in.) in diameter followed by encapsulation with organic latex coating formulations. Capsules of seven PCMs have been fabricated and evaluated in different heat exchange fluids. In accelerated thermal cycling tests, capsules of a wax, CaCl/sub 2/.6H/sub 2/O, and a Glauber's salt eutectic mixture passed the equivalent of 20 to 25 years of real-world use without capsule degradation; one PCM (Na/sub 2/S/sub 2/O/sub 3/.5H/sub 2/O) had serious supercooling problems; three others (MgCl/sub 2/.6H/sub 2/O, Mg(NO/sub 3/)/sub 2/.6H/sub 2/O, and Na/sub 2/HOP/sub 4/.12H/sub 2/O) suffered wall degradation. A cost estimate has shown that PCM capsules, when manufactured in large scale, can be sold at less than $1.10/kg ($0.50/lb).
- Research Organization:
- Pennwalt Corp., King of Prussia, PA (USA). Research and Development Dept.
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6344327
- Report Number(s):
- ORNL/TM-8543; ON: DE83009882
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
25 ENERGY STORAGE
250600* -- Energy Storage-- Thermal
COMPACTING
DATA
ENCAPSULATION
ENERGY STORAGE
EQUIPMENT
EXPERIMENTAL DATA
FABRICATION
HEAT STORAGE
INFORMATION
LATENT HEAT STORAGE
MATERIALS
MOLDING
NUMERICAL DATA
PELLETIZING
PHASE CHANGE MATERIALS
STORAGE
THERMAL CYCLING
THERMAL DEGRADATION
THERMAL ENERGY STORAGE EQUIPMENT
250600* -- Energy Storage-- Thermal
COMPACTING
DATA
ENCAPSULATION
ENERGY STORAGE
EQUIPMENT
EXPERIMENTAL DATA
FABRICATION
HEAT STORAGE
INFORMATION
LATENT HEAT STORAGE
MATERIALS
MOLDING
NUMERICAL DATA
PELLETIZING
PHASE CHANGE MATERIALS
STORAGE
THERMAL CYCLING
THERMAL DEGRADATION
THERMAL ENERGY STORAGE EQUIPMENT