Methodological work

• The future role of Thermal Biomass Power in renewable energy systems – a study of Germany

  Mar 2019

  The global energy supply system is in a transition from a centralized system dominated by dispatchable fossil-based sources to a system that is based on renewable energy sources. In countries where wind and solar are expected to play a dominant role in the energy transition, the integration of these energy sources in the power system […]

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• Advanced Test Methods for Firewood Stoves

  Oct 2018

  This report by Gabriel Reichert and Christoph Schmidl compares a number of different test methods that are used around the world for determining the emission factors from woodstoves, and discusses how well these different methods are able to mimic the emission during typical use of the wood stoves in practise. In different scientific studies test protocols which […]

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• Status of PM emission measurement methods and new developments

  Sep 2018

  Background Particulate matter emissions (PME) from biomass combustion have always been in the focus of air pollution control. Due to their small size (mostly below 1 µm aerodynamic diameter) they can easily pass through the nose and throat into the lungs. Additionally, many such PM-enriched flue gases also carry organic gaseous carbon species (OGC) which act […]

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• Advanced characterisation methods for solid biomass fuels

  Jun 2015

  This study has been performed in order to gain an overview about advanced biomass fuel characterisation techniques currently applied, to discuss the strengths and weaknesses of the different methods, their specific fields of application as well as to assess the suitability of the different methods for the investigation of new biomass fuels. For the report […]

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• Status Report on District Heating Systems in IEA Countries

  Dec 2014

  The study presents an evaluation of district heating systems in IEA countries based on characteristic parameters such as the annual heat losses, the linear heat density in MWh/(a m) (where 1 m refers to the length of the pipeline), and the connection load. Data are available and presented for Austria, Denmark, Finland, Germany, and Switzerland […]

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• Sensitivity of System Design on Heat Distribution Cost in District Heating

  Dec 2014

  District heating (DH) offers interesting opportunities to use biomass and/or waste heat as an energy source for thermal heat and thus to replace decentralised fossil heating. On the other hand however, district heating induces additional cost and energy losses in the heat distribution. The present project introduces a sensitivity analysis for a virtual DH network […]

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• Determination of the Efficiencies of Automatic Biomass Combustion Plants

  Nov 2006

  The main objective of the present investigation is the evaluation and comparison of different methods for the determination of the efficiencies of automatic biomass combustion plants. For this purpose, detailed formulae for the combustion efficiency, the boiler efficiency and the annual plant efficiency are described and methods for direct and indirect determination are identified. Furthermore, […]

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• Evaluation of Biomass Combustion based Energy Systems by Cumulative Energy Demand and Energy Yield Coefficient

  Jan 2004

  The study presents a method for a comparison of different energy systems with respect to the overall energy yield during the life cycle. For this purpose, the Cumulative Energy Demand (CED) based on primary energy and the Energy Yield Factor (EYC) are introduced and determined for the following scenarios: Log wood, wood chips, and wood […]

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