INVESTIGATION OF THE PERFORMANCE OF AN OPEN-FLAME CONVECTOR
ARMY NATICK LABS MA MECHANICAL ENGINEERING DIV
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The convector investigated was an experimental prototype designed as a body warmer to heat the space between the wearers body and his outer apparel. Three prototypes were investigated under a series of conditions including standard, low-temperature, and operational. Under these conditions, data on ignition, fuel regulation, fuel consumption, convector thermal capacitance, and safety were obtained. Results of the investigation showed that operation of the prototype convectors can be regulated for consistent operation within 9 percent. If the fuel rate is monitored and controlled, the convector thermal capacitance may be regulated within 5 percent to assure the constancy of this variable when applied to human test subjects. Although there is a potential hazard of fire, heat injury and toxicity from use of the open-flame convector as a body warmer, its performance within safety threshold limits is obtainable. The fire and heat injury hazards are minimized when the fuel regulating valve is prewarmed at low temperatures and the burner is ignited in a shielded enclosure. Carbon monoxide concentration was reduced to acceptable threshold limits, less than 0.01 percent, when the convectors were operated at low-temperature operational conditions.
- Protective Equipment