Heat pumps and additional condenser can make CHP profitable again for Dutch growers

Adegeest Kasverwarming recently installed two pumps at a pepper grower in North Holland. The heat pumps are connected to a second CHP condenser. The regular condenser is connected to the growth-tube heating. With the new system, the gases are further cooled with cleaner exhaust gases as a result.

The condenser side of the heat pump is attached to the tube rail heating in the greenhouse. The evaporator side of the heat pump will cool the new (second) gas condenser. The gas temperature has been reduced by this application from 50 to 19-20 degrees Celsius. The integration of the heat pump generates an additional capacity of 2 x 1,075 kW. "This way we can make the CHP profitable again," says Jean-Pierre Schenkeveld, who has supervised the project on behalf Adegeest Kasverwarming.

 




Coupling the condensers
The heat pumps come from CIAT Netherlands and are semi-custom-made. The gas engines are from Jenbacher.

Cleaner exhaust gasses
Besides the extra power, the great advantage is that cooler flue gases in the 2nd condenser, condense further, says Schenkeveld. "The fumes contain less condensation and are much cleaner. CO2 bowels are thus significantly cleaner as well."

CHP unprofitable

Schenkeveld thinks this type of installation might create possibilities for companies where the CHP is currently unprofitable. After all, heat pumps run on electricity, which would otherwise be returned to the grid for a measly fee.



More information:
Jean-Pierre Schenkeveld
Adegeest Kasverwarming
Bergschenhoek
010-5221180
info@adegeest.com



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