Accession Number:

ADB214415

Title:

PCM Composite Cold Plate.

Descriptive Note:

Final rept. Apr-Sep 95,

Corporate Author:

ENERGY SCIENCE LABS INC SAN DIEGO CA

Personal Author(s):

Report Date:

1996-04-01

Pagination or Media Count:

40.0

Abstract:

This Phase I SBIR project has investigated a lightweight packaging design for phase change materials PCMs used in thermal management. To control expansion stress, conventional PCM heat sinks have strong encapsulation that weighs more than the PCM they contain. The objective of this work is to develop PCM heat sinks configured as thin sandwich plates, in which the mass of the encapsulation is a small fraction of the PCM mass. The design is based on a lightweight carbon fiber core that has suitable mechanical, thermal, and capillary properties. PCM composite plates were fabricated with dimensions 15x15x0.6 cm3 and with a dodecan, sealed, and successfully tested in thermal-vacuum environment. No performance degration was observed after 100 deep thermal cycles in air. A lightweight design incorporating heat pipes was demonstrated. It appears feasible to fabricate such plates with thickness 1-10 mm and with organic PCM mass fractions exceeding 75. Thick heat sinks may be formed by laminating thin plates.

Subject Categories:

  • Thermodynamics
  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE