The Danish company Aalborg Energie Technik a.s. (AET), a leading engineering company and EPC contractor, can now offer fuel flexible biomass boilers with a boiler efficiency of 92 per cent and an reliability of 99 per cent. The company, whose mission is to develop, supply, erect, commission and service biomass fired boilers and CHP plants of 25–170MW thermal input, continues to supply its customers with advanced, economical solutions on a long-term basis.
ENERGY-EFFICIENT BOILERS IN
recent years, a number of Danish companies have begun to lead the way in several key renewable energy markets, and today they are the leading global and European players. For one such company, AET, innovation is the key to its international reputation. Its employees have more than 25 years of experience in the biomass boiler business, giving it a strong in-house knowledge base and allowing it to supply some of the most advanced biomass power and CHP plants in Europe.
The AET solutions Good engineering is the key to the design and supply of reliable biomass power plants. In order to achieve optimal plant performance day after day, each of the components needs
to be carefully engineered and integrated to function as a whole. This can, according to AET, be best achieved by creating a detailed design of the most essential parts in-house. AET’s knowledge and experience means that it can offer clients biomass plants with a number of advantages. They have an availability of more than 99 per cent (more than 96 per cent with planned stops included) giving stable electricity, heat or steam production throughout the year, and a higher boiler efficiency (92 per cent) resulting in a higher net output for the same amount of fuel. They are fuel flexible and incorporate robust technology which avoids unnecessary shut-downs due to foreign objects that might be hidden in the fuel. Furthermore, they have low maintenance costs and
require low in-house power consumption with reduced operating costs. Lastly, they are an environmentally friendly solution with low flue gas emissions.
The AET Combustion System The AET Combustion System plays a crucial role in the supply of efficient and reliable biomass boiler plants. This concept, which is based on spreader stoker technology and a travelling grate, has been developed and refined, and today it is one of the most suitable technologies for biomass firing. Burning the biomass efficiently depends on several factors, such as the fuel dosing method and the mixture with air in the combustion chamber. Within the AET Combustion System the fuel is pneumatically
