22 May 2008

HEAT PUMP TECHNOLOGY FOR LARGE BUILDINGS – A POTENTIAL STILL TO BE DEVELOPED


The traditional heat pump market in Europe has so far predominately been a
market for family houses. Basically the traditional market was for newly built homes but today
the retrofit market is rapidly increasing. The development of new heat pump technologies for
65°C flow temperatures for all heat sources has been a conditional factor. In the past we do
not find many applications for large capacity heat pumps (100 kW to 11 MW) in Europe.
Today some few producers are developing large heat pumps commercial application, office
and municipal buildings, etc., especially optimised for heating purposes. These heat pumps
use specially designed compressors and refrigerant cycles in order to improve COP and
provide flow temperatures up to 65°C. These high temperatures are required for the retrofit
market. The article describes the market for large heat pumps and shows how to overcome
barriers to develop these potentials.