Accession Number:

ADA604327

Title:

Non-Ozone Depleting Mobile Heat Pump

Descriptive Note:

Corporate Author:

ENVIRONMENTAL SECURITY TECHNOLOGY CERTIFICATION PROGRAM ALEXANDRIA VA

Personal Author(s):

Report Date:

2000-01-01

Pagination or Media Count:

30.0

Abstract:

To address the growing environmental and logistical burden posed by continued use of Class I ozone depleting chemicals ODCs, this co-funded Environmental Security Technology Certification Program ESTCP and United States Air Force USAF Science and Technology project sought to develop a heatingcooling system using a pulse tube refrigerator with helium a non-ODC gas as the refrigerant. Currently, the USAF relies on fluorocarbons, such as R-22, to act as the refrigerant in the environmental control units ECUs used to heat and cool fixed, low-volume enclosures on military installations and mobile enclosures for military deployments. Expanded provisions and expedited implementation of the Montreal Protocol as well as ISO 14000 will compromise the future use of Class I ODCs and the subsequent mission readiness of U.S. military forces if the military continues to rely on conventional heat pumps. In addition to reducing ODC use, project goals included a reduction in the weight of mobile ECUs and an increase in their efficiency. Air Force Air Expeditionary Force AEF deployments are accomplished by moving a large quantity of equipment and material to various remote locations. A typical AEF kit that sustains an 1100-man force requires shipment of 4.23 million pounds of material with 91 C141 sorties. Reductions in the size and weight of the mobile ECUs transported during AEF deployments would promote military mobility. Increased efficiency of heating, ventilating and air conditioning HVAC equipment can reduce deployment costs through decreases in electrical power requirements and fuel consumption. The pulse tube refrigerator is the simplest mechanical gas-cycle refrigerator suitable for application in a commercial heat pump.

Subject Categories:

  • Air Conditioning, Heating, Lighting and Ventilating
  • Air Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE