Clean-Air Technology

NH3 refrigeration installations for supermarkets

It has been demonstrated that ammonia installations can be reliably operated in supermarkets. In comparison to direct evaporation installations using CFC-based refrigerating agents, these facilities show greater environment-friendliness associated with their lower contribution to the overall greenhouse effect.

 

Summary

It is intended that the development of ammonia refrigerating installations for supermarkets should be advanced to the point where their optimum operation, in terms of energy consumption, and cost-effective installation will be possible. To this end, both plant- and component-specific developments will be required.

NH3 refrigeration systems are to be used for the operation of refrigerators and cold stores in medium-sized and large food retailing outlets.

Results:

  • The refrigeration required by the customary facilities used in food retailing outlets, both for standard refrigeration and deep freezing, can reliably be provided by NH3 refrigeration installations.
  • In comparison to direct evaporation installations using the CFC refrigerating agent R404A, the overall contribution to the greenhouse effect (TEWI = Total Equivalent Warming Impact) can be virtually halved by the use of NH3 refrigeration installations.
  • Energy consumption is some 15% higher than that associated with direct evaporation using CFC-based refrigerating agents.
  • Depending upon the configuration, size and specific characteristics of the installation concerned, additional costs ranging from 15% to over 30% may be anticipated.
  • The refrigeration required by the customary facilities used in food retailing outlets, both for standard refrigeration and deep freezing, can reliably be provided by NH3 refrigeration installations.
  • In comparison to direct evaporation installations using the CFC refrigerating agent R404A, the overall contribution to the greenhouse effect (TEWI = Total Equivalent Warming Impact) can be virtually halved by the use of NH3 refrigeration installations.
  • Energy consumption is some 15% higher than that associated with direct evaporation using CFC-based refrigerating agents.
  • Depending upon the configuration, size and specific characteristics of the installation concerned, additional costs ranging from 15% to over 30% may be anticipated.

More Project Informations

Project title:  NH3 refrigeration installations for supermarkets

Project number:  01ZH9411/9

Project period:  1994 - 1996

Project region:  Germany (North Rhine-Westphalia)

Project contact:

Dipl.-Ing. Haaf

This email address is being protected from spambots. You need JavaScript enabled to view it.

++ 49 / 2236 / 601 - 2305

++ 49 / 2236 / 601 - 2301

Source: German National Library of Science and Technology Hannover (TIB)