Use of natural refridgerants i supermarkets

Use of Natural Refrigerants in Supermarkets

Colophon

Title:
Use of Natural Refrigerants in Supermarkets

Abstract:
As the refrigeration industry also desires to supply products having the
least adverse environmental impact possible, the Danish Environmental
Protection Agency, Super Køl A/S, Fakta and the Danish Technological
Institute entered into an agreement in the spring of 2001 to fully
develop and commercialise the technology of natural refrigerants in
supermarkets. This project (Use of natural refrigerants in supermarkets)
focuses on the energy consumption and installation costs of using propane
and CO2 in supermarkets. The project shows that: - the energy
consumption is within the consumption of an optimised traditional Fakta
outlet; - the installation costs are 10-20% above the cost of an
optimised Scroll solution with R404A in a standard Fakta outlet; - the
installation costs of the brine circuit are significantly lowered when
hoses are used, and that string control valves are not required on
systems of this size; - the injection function of the cascade heat
exchanger must have a time-limited start-up function followed by
traditional PID control to provide stable, uniform operation; - the
propane circuit safety requirements are operational and manageable; and -
the choice of an adjusting strategy for secondary cooling circuits is a
condition for energy-optimised operation of refrigeration compressors.

Abstract in Danish:
Super Køl har med deltagelse af Teknologisk Institut installeret et køleanlæg baseret på naturlige kølemidler (propan og CO2) i en Fakta Butik i Beder v/Århus. Projekt viser at det kan lade sig gøre at erstatte HFC uden at det samlede udslip af drivhusgasser stiger; tværtimod opnås der en betydelig besparelse idet det nye anlæg energimæssigt er på niveau med et optimeret HFC-anlæg, mens der er en gevinst på lækagesiden. Meromkostningerne er p.t. på 10-20%, men dette forventes at kunne optimeres.

Supplementary notes:
Translation of: "Anvendelse af naturlige kølemidler i supermarkeder"
(Environmental Project, 658)

Publisher:
Miljøstyrelsen

Performing organization(s):
Danish Technological Institute; Super Køl A/S

Author/copyright:
Bertelsen, Preben; Christensen, Kim; Gøttsch,Tom

Language:
dan

URL:
http://www.mst.dk/udgiv/Publikationer/2003/87-7972-856-1/html/

Digital ISBN:
87-7972-856-1

ISSN:
0105-3094

Version/edition:
17-07-2003

Data formats:
html,htm,jpg,gif,pdf,css,js

Publisher category:
statslig

Key subjects:
CFC; substitution; køleanlæg; propan CAS 74-98-6; CO2; økonomi; driftsforhold