The project 38709-1 “New technology for combustion with low emissions of low-grade gas from landfills or gasification” started in August 2014 and lasted for a period of 2 years. The project was carried out by employees of Cleanergy and was funded by the Energy Agency through Energiforsk.
Combustion is an important part of electricity production. The increasing energy need and an increased amount of bioenergy in society through the use of renewable fuels is likely to increase. Cleanergy has developed a combustion chamber located in a Stirling engine and is operated primarily on natural gas, whose main component is methane and landfill gas, which has a large varying gas composition. In recent years, it has been seen that the composition of the landfill gas has varied more, depending on various factors such as location, temperature, pressure, landfill composition and time of the landfill.
These variations lead to variations in the heating value and thus variation in the operation of the Cleanergys GasBox engine. This requires flexibility in operation of the combustor.