Accession Number:

ADA289541

Title:

Thermal Analysis and Development of Ration Packaging for Efficient Heating with Flameless Electrochemical Heaters.

Descriptive Note:

Final rept. Mar 91-Apr 92,

Corporate Author:

ROCHESTER UNIV NY DEPT OF MECHANICAL ENGINEERING

Report Date:

1994-12-01

Pagination or Media Count:

131.0

Abstract:

The investigation has been conducted to study the transient thermal performance of food-packages containing integral exothermic chemical heaters using Finite Element Analysis FEA. The work was divided in two parts. The first part deals with the Meals Ready to Eat MRE packages, and the second part deals with the Self Heating Individual Meal Module SHIMM. The MRE study was focused on developing tools to model the thermal characteristics of the heater and the MRE entree. Experiments were performed to obtain temperature profiles in the self heating ration packages under field like conditions. The FEA indicated that distributing the steam uniformly over the entire top surface of the package resulted inthe latent heat of vaporization ofthe steam being transferred to the food rapidly. By exploiting the condensation mechanism, the mass of the heater could be decreased by up to 50. In the study on the SHIMM, a three dimensional thermal transient analysis was conducted. A number of experiments were also conducted on plain and modified heater geometries for the SHIMM. The FEA predictions agreed well with the experimental results.

Subject Categories:

  • Food, Food Service and Nutrition
  • Air Conditioning, Heating, Lighting and Ventilating
  • Containers and Packaging
  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE