Accession Number:

ADA170492

Title:

Phase Change Thermal Energy Storage Methods for Combat Vehicles.

Descriptive Note:

Final rept. on Phase 1,

Corporate Author:

HYDROGEN CONSULTANTS INC DENVER CO

Personal Author(s):

Report Date:

1986-06-01

Pagination or Media Count:

63.0

Abstract:

Three alternative cooling methods, based on latent heat absorption during phase changes, were studied for potential use in combat vehicle microclimate temperature control. Metal hydrides absorb heat as they release hydrogen gas. Plastic crystals change from one solid phase to another, absorbing heat in the process. Liquid air boils at cryogenic temperature and absorbs additional sensible heat as the cold gas mixes with the microclimate air flow. System designs were prepared for each of the three microclimate cooling concepts. These designs provide details about the three phase change materials, their containers and the auxiliary equipment needed to implement each option onboard a combat vehicle. The three concepts were compared on the basis of system mass, system volume and the energy required to regenerate them afer use. Metal hydrides were found to be the lightest and smallest option by a large margin. The energy needed to regenerate a hydride thermal storage system can be extracted from the vehicles exhaust gases.

Subject Categories:

  • Air Conditioning, Heating, Lighting and Ventilating
  • Combat Vehicles

Distribution Statement:

APPROVED FOR PUBLIC RELEASE