Operating and Maintenance Guidelines for the Kinergetics (Trade Name) Environmental Control System. Carbon Dioxide Scrubber Model DH-10 and Heat Exchanger Model CCU-01.

Abstract

An environmental control system consisting of Carbon Dioxide Scrubber Model DH-10 and Heat Exchange Model CCU-01 has previously been evaluated as suitable for installation in standard U.S. Navy two-lock aluminum recompression chambers. This report provides installation and operating guidelines and may be used as a basis for writing operating procedures for the two units. Manufacturer's instructions should be followed for installation. A method of measuring chamber carbon dioxide concentration, such as chemical detection tubes, must be used to determine when to change carbon dioxide absorbent canisters. For planning purposes, predicted canister durations for the scrubber under specified conditions of 3 occupants or less, 75 deg F (24 C) internal temperature, and no external ventilation or breathing apparatus overboard dump are 3.5 hours at 30 Feet of Sea Water (FSW), 1.5 hours at 60 FSW, and 1.0 hour at 165 FSW. The heat exchanger requires a minimum of 2 gallons per minute of water or water/propylene glycol mixture, chilled to a maximum temperature at the chamber ranging from 82 deg F (28 deg C) for an ambient air temperature of 86 deg F (30 deg C), to 36 deg F (2 deg C) for an ambient air temperature of 110 deg F (43 deg C), in order to keep the chamber internal temperature below 85 deg F (30 deg C).