Evaluation of Kinergetics Breathing Gas Heater.
Abstract
The Kinergetics Breathing Gas Heater Model 3375-2 was tested by NEDU and NCSC in conjunction with the USN MK 1 Mod S mask during a 1500 fsw saturation dive in December 1977. Data was gathered at depths ranging from 1120 to 1250 fsw on divers performing light to extreme work on a bicycle ergometer. The heater produced extremely low pressure drops in the gas flow path and did not interfere with the breathing characteristics of the mask. The heater is simple to use and does not substantially complicate the use of the MK 1 Mod S mask. Results showed that the heater can effectively raise diver breathing gas temperature from an inlet value of 50 F to an outlet value of 100 F when operating according to manufacturer's specifications. However, as the warm gas flow from the heater through the mask sideblock and demand regulator into the oral-nasal cup, it will cool to approximately 75 F (in 40 F ambient H2O). Consequently, to realize full heater potential some form of mask sideblock heating should be incorporated into the system. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1978
- Accession Number
- ADA057919
Entities
People
- Barry E. Miller
- James R. Middleton
Organizations
- United States Navy Experimental Diving Unit