Emission Limited Biomass Combustion

Austria is a global leader in the development and spreading of biomass boiler heating systems for buildings, for industrial and commercial facilities and for local and district heating supply. The larger such heating systems are, the bigger the variability in fuel becomes. Due to the larger variability in fuels, combustion control requirements become more complex. Lambda sensors made of zirconium oxide are state-of-the-art in small-scale boilers. In mid-sized systems, lambda sensor controls cannot guarantee a low emission combustion due to the use of heterogeneous fuels. The project EmiL (Emission Limited Biomass Combustion) engages in fundamental research in order to create the basis for highly efficient low-emission biomass boilers.

The aim of a low-emission biomass combustion shall be attained by combining primary measures in the area of combustion sensor technology and combustion control with secondary measures concerning cost-efficient particulate matter separation technology. An integrated research approach optimizes these parts to an overall solution. The methodology is based on experimental investigations carried out on test stands and in field tests. An innovative, model-predictive control is being developed and implemented in a LabVIEW environment and is tested via an interface to the boiler control. In regard to particulate matter separation, tests are carried out on the basis of CFD-simulations and experimental research to investigate the integration of particulate matter separators inside the boilers.

The research institution, a university and boiler producers closely cooperate to achieve the planned research results. This industrial research project addresses mid-sized biomass boilers with capacities ranging from 50 kW to 1.0 MW.

Fig. 1: Project partner’s Herz Energietechnik GmbH woodchip boiler

Funding agencies, research & cooperation partners

Funding agency

Research partners

Project team and project manager

Project manager

  • Jürgen Krail
    DI DI(FH) Jürgen Krail
    Dept. Energy & Environment
    Campus Pinkafeld

    Schwerpunkte in Forschung und Lehre:
    Energieverfahrenstechnik, Regenerative Energiesysteme mit Schwerpunkt Biomasse, Prozesssimulation, Technische Akustik, Emissionsmesstechnik und akustische Messtechnik

Project team

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