METHOD OF HEATING FOODS DURING AEROSPACE FLIGHT

摘要

A feasibility study of methods for heating foods during aerospace flight has shown that electrical resistance heating is the most effective technique. An internal heating probe is more efficient than external heating, hut special food containers are required. A full-scale engineering model of an external heating food warmer, capable of heating available food containers, was de¬signed, fabricated, and evaluated. This model has three separately controlled stations for mounting flexible heaters that are wrapped around the container to be heated. The system occupies a volume less than 288 cubic inches and weighs less than 4 pounds, when provided with six heater assemblies. Labora¬tory tests verified that the system meets the requirements specified, and it can heat a 6-ounce can of ham and eggs from 75°F to l6o°F with less than l4 watt-hours of energy.