International Maritime Organisation
Planning / Implementation / Main components |
Star Refrigeration Ltd. |
Refrigerant |
Ammonia (NH3) |
System start-up |
2002 |
The International Maritime Organisation building in London is HQ to a world-renowned insti-tution and is a major venue for many global conferences. In order to comply with environ-mental standards, it was necessary to replace the chillers, which provide cooling to the of-fices and conference suite. |
|
Demands |
The R-11 chillers were to be replaced due to the phase out of CFCs and the new chillers had to comply with the Gov-ernment's policy of avoiding fluorocarbon refrigerants. |
Solution |
Two water chillers were placed in an acoustic housing on the roof of the offices, close-coupled to two evaporative con-densers. |
Technical data:
Type of facility |
2 NH3 water chillers |
Refrigerant |
NH3 |
Refrigerant volume |
280 kg |
No. of refrigeration compressors |
2 |
Refrigerant temperature |
From +11 ºC to +5.5 ºC with an evaporating temperature of +3.3 ºC |
Refrigerating capacity |
1,400 kW |
Main components |
Low pressure receiver, plate heat exchanger, condenser |
Special features / Comments |
The power consumption of the ammonia chillers is signifi-cantly less than previous systems and they are estimated to be over 30 % more efficient than the previous installation. The chillers operate as a critically charged, flooded system, with a low specific ammonia charge. |
Contact:
Star Refrigeration Ltd.
David Blackhurst
Thornliebank Industrial Estate
Glasgow G46 8JW, UK
Phone: +44 (0)141 638 7916
Fax: +44 (0)141 638 8111
E-mail: dblackhurst@star-ref.co.uk