Star helps Norwegian naval base extract heat from sea

Star Refrigeration, ammonia heat pump
This ammonia-based heat pump from Star Refrigeration extracts heat from seawater to provide heating and hot water for a naval base in Norway.

An ammonia-based heat-pump system drawing heat from seawater has replaced an R134a system at Ramsund Naval Base in Norway. Supplied by Star Refrigeration the Neatpump has a capacity of 600 kW and a COP of 2.7. It heats water to temperatures from 60 to 80°C to provide heating and hot water to all buildings on the base.

This heat pump uses a low charge of ammonia, which has zero global-warming potential. The previous plant suffered a system failure at fewer than 10 years of services. In contrast, Neatpump’s advanced compressor tech­nology and ultra-low main­tenance design is said to ensure over 20 years of service.

Kenneth Hoffmann, sales manager for heating with Star, said, ‘This is our second Neatpump installation in Norway, working in partnership with refrigeration partner Norsk Kulde. Our 15 MW district-heating system on the Drammen Fjord near Oslo is providing hot water and heating to over 60 000 homes and businesses.’

This latest project uses the Vilter single-screw compressor, which has balanced pressure across the central rotor to ensure long life, high reliability and low maintenance.

Neatpumps are available with capacities from 300 to 8000 kW. They can be commissioned and charged before delivery, reducing site installation and commissioning time.

For more information on this story, click here:  June 2011, 134
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