{"id":4289,"date":"2016-01-06T14:25:06","date_gmt":"2016-01-06T14:25:06","guid":{"rendered":"http:\/\/task41project5.ieabioenergy.com\/?page_id=4289"},"modified":"2021-09-20T09:49:17","modified_gmt":"2021-09-20T09:49:17","slug":"news","status":"publish","type":"page","link":"https:\/\/task32.ieabioenergy.com\/news\/","title":{"rendered":"News"},"content":{"rendered":"
Webinar: Residential Wood Combustion \u2013 Towards Low Emission Systems<\/strong><\/span><\/p>\n Wood combustion plays a large role for residential heating in many countries. However, inadequate knowledge, poor design of appliances, unrealistic test methods and poor operation of wood stoves lead to undesired and harmful consequences for air quality in many residential areas.<\/p>\n On 6th May 2021, IEA Bioenergy held a webinar which presented the most recent findings from ongoing work within Task 32 on design guidelines for wood stoves and real-life test methods. The webinar consisted of the following presentations, followed by a Q&A session:<\/p>\n Morten Tony Hansen (Ea Energy Analyses, Denmark), Lead of IEA Bioenergy Task 32 on Biomass Combustion,moderated the webinar.<\/span><\/p>\n Watch the full webinar here<\/a>.<\/p>\n Report on health impacts of biomass particles<\/strong><\/p>\n Task 32 publised a report on the health aspects of biomass combustion originated particles. The report assesses the typical quantity and composition of aerosols emitted from biomass fired stoves and boilers, and reviews the results of recent R&D projects in which the health impacts were evaulated.<\/p>\n This report summarises the current knowledge on the health relevance of combustion generated PM, describes the mechanisms which can cause PM in biomass combustion, describes different particle types, and provides infor\u00admation on measures to reduce PM from biomass combustion. It is important to distinguish carbona\u00adceous and inorganic pollutants as well as primary and secondary aerosols. Organic pollutants are particularly relevant to residential biomass combustion and can be avoided at near-complete com\u00adbustion conditions. Particles resulting from incomplete combustion in manual devices exhibit a high cytotoxicity, while particles from properly operated automated biomass boilers and furnaces are mainly inorganic (derived from ash constituents in the biomass) and exhibit significantly lower or even unde\u00adtectable cytotoxicity. In addition, inorganic particles can be removed effectively by air pollution con\u00adtrol equipment such as electrostatic precipitators or fabric filters. In summary, biomass can play an im\u00adportant role in future energy supply in an environmentally friendly manner through im\u00adple\u00admen\u00adta\u00adtion of state-of-the-art combustion devices and their appropriate operation.<\/p>\n Aerosols from biomass combustion – Technical report, Thomas Nussbaumer, IEA Bioenergy Task 32, 2017<\/a><\/p>\n Workshop on new emission measurement methods, 19 January 2017<\/b><\/p>\n With existing test methods for biomass boilers and stoves, the emissions are tested under stationary and optimal test conditions. Under practical circumstances however, emissions may be significantly higher, e.g. during cold startup or while operating under partload. This implies that the emissions measured during type approval do not neccessarily reflect actual emissions in the field and may be significantly underestimated.<\/p>\n In order to obtain a result during emission testing that better represents practical conditions, it is therefore desired to modify\u00a0existing standards to reflect better how the devices are actually used\u00a0in practise.<\/p>\n Task 32 organised a workshop on 19 Janary 2017 during the Central\u00a0European Biomass Conference in Graz, Austria, to present an overview of\u00a0existing emission measurement standards, and evaluate the new method\u00a0that was proposed in the framework of the BEREAL project.<\/p>\n See here for a report of the workshop, with all presentations and a policy recommendation paper.<\/a><\/p>\n Webinar on biomass torrefaction, 27 October 2016<\/b><\/p>\n Task 32 and Task 40 have recently published two reports related to biomass torrefaction:<\/p>\n the commercial status of biomass torrefaction<\/a><\/p>\n the potential impact on international biomass trade<\/a>.<\/p>\n On 27 October 2016, there was a live webinar in which the authors present the report in two consequetive presentations, with a Q&A session.\u00a0The webinar can again be viewed\u00a0here<\/a>. The presentation is available\u00a0here<\/a>.<\/p>\n Successful task 32 meeting in Japan, Oct 2016<\/b><\/p>\n Task 32 held a succesful progress meeting in Maniwa, Japan. The meeting was accompanied with a field trip and discussion workshop with local stakeholders to discuss opportunities for improved utilisation of locally available wood residues. A brief newsitem broadcasted on local\u00a0television can be found\u00a0here<\/a>.<\/p>\n Task 32 workshop on Biomass Combustion Generated Nanoparticles<\/b><\/p>\n On 14 May 2016, Task 32 organised a workshop on the formation,\u00a0mitigation and health impacts of biomass combustion generated Task 32 starts with a new triennium<\/b><\/p>\n Task 32 will continue its work in supporting cost effective and clean\u00a0applications of biomass combustion. A workplan for another 3 years was endorsed recently, with activitities varying from woodstoves to\u00a0industrial CHP and large scale cofiring with coal. Membership of task 32 has expanded to 13 member countries, see\u00a0here<\/a>\u00a0for the contact details of our national team leaders.<\/p>\n <\/p>\n An overview of the work performed during the last triennium (2013-2015)\u00a0can be downloaded\u00a0here<\/a>.<\/p>\n Report:\u00a0The status of large scale biomass firing\u00a0 <\/b><\/p>\n This report provides an overview of the current status of biomass cofiring. This report shows that the firing and co-firing of biomass as\u00a0a replacement for coal in large pulverised coal boilers can be a very attractive option for the utilisation of biomass materials for power production, and for the delivery of renewable energy.<\/p>\n The key technical options for the conversion of large pulverised coal boilers to the firing and co-firing of biomass have all been successfully demonstrated, principally in projects in Northern Europe, over the past 10-15 years or so. A number of the plants converted to\u00a0biomass firing and co-firing are currently in operation, and there are a small number of further conversion projects currently in the proposal stage.<\/p>\n The storage and handling of the biomass materials, and particularly the tendency of the biomass to generate significant dust levels, have presented the most significant problems. It is fair to say, however, that the fuel suppliers and the materials handling equipment supply industry have learned many lessons over the past few years, and that the\u00a0solutions currently being offered for biomass projects represent a significant improvement over previous practice.<\/p>\n The case\u00a0studies and country reports show that through the years, a great experience has been gained with biomass cofiring in various types\u00a0of power plants and with various types of biomass fuels. These projects show that the technical risk areas have been managed successfully and that the plant availability and efficiency levels after conversion have been acceptable.<\/p>\n <\/a><\/p>\n Updated report: Techno-economics of biomass CHP Task 32 already published a report on the techno-economics of biomass combustion based CHP systems in 2004. This new report provides an updated evaluation of the techno-economic performance of three types of biomass combustion based CHP systems, varying from 130 kWe to 5,7 MWe.<\/p>\n This updated report provides a techno-economic evaluation of three case studies that represent the most relevant small-scale CHP technologies based on biomass combustion relevant for the market at present. It points out the differences between the technologies available, their meaningful integration in heat supply systems based on real-life case studies and a technological as well as economic evaluation and comparison between the technologies. The results provide valuable information about the necessary constraints for a meaningful application of these technologies and a good basis for future design, application and operation of such plants but also for meaningful further developments.<\/p>\n <\/a><\/p>\n Updated report: Status overview of torrefaction technologies <\/b><\/p>\n The maturation and market introduction of torrefaction technologies has gone slower than anticipated 5 years ago, when it was expected that a significant fraction of the biomass pellets supplied today could have been replaced by torrefied pellets.<\/p>\n It has been hard to fully prove the claims made earlier on product characteristics, and several companies have gone bankrupt due to inability to produce good quality product or due to a lack of buyers. This report provides an update of the 2012 report by Task 32, including some of the key results of recent research projects on torrefaction. Expert workshop on Highly Efficient and Clean Wood Log Stoves<\/b><\/p>\n Fireplaces and woodlog stoves that burn wood in a suboptimal manner are an important source of particle emissions in Europe. By phasing out polluting woodstoves and introducing better stoves, better stove installations and educating stove users, large emission reductions can be achieved.<\/p>\n Experts from IEA Bioenergy task 32 (Biomass Combustion and Cofiring), in collaboration with various national and European branche organisations have jointly organized an expert workshop on ways to introduce efficient and clean wood log stoves. This workshop was held on Thu 29 Oct in Berlin.<\/p>\n All presentations from the workshop can be found\u00a0here<\/a>.<\/p>\n Report on\u00a0advanced biomass fuel characterisation methods <\/b><\/p>\n Biomass fuel characterisation is a relevant issue for all thermo-chemical conversion technologies. Recently several advanced biomass fuel characterisation techniques were developed that can better help in defining the behaviour of a fuel during the pyrolysis, gasification and combustion stage, as compared to traditional chemical analysis methods.<\/p>\n These advanced fuel characterisation methods have their specific advantages as well as and a certain application range.\u00a0This study provides an overview on the strengths and weaknesses of the different methods, as well as their specific fields of application.<\/p>\n <\/a><\/p>\n <\/b>Reports published on\u00a0biomass combustion and district heating systems<\/b><\/p>\n Compared to small scale decentralised biomass boilers, district heating enables the use of larger boilers that can achieve higher combustion efficiencies and lower pollutant emissions at lower costs. However, district heating itself also induces additional costs and energy losses. Therefore it is a challenge to find the most economic and efficient design of the overall biomass fired district heating system.<\/p>\n VERENUM prepared two reports for Task 32 on the optimisation of biomass fired district heating networks to analyse where improvements can be made in both the design and operation. A summary of the analysis can be found\u00a0here<\/a>, the reports can be downloaded from below:<\/p>\n The first report<\/a>\u00a0contains a theoretical assessment of the influence of system design parameters on heat distribution cost. The report shows what design optimisations can be made for pipe diameter, temperatures maintained, and insulation class based on given line heat density and the utilisation rate.<\/a><\/p>\n The second report<\/a> contains an evaluation of the performance of actually operating district heating networks, and shows the difference between individual countries.<\/a><\/p>\n Expert workshop on Opportunities for Bioenergy in South Africa<\/b><\/p>\n 4 November 2014,\u00a0IEA Bioenergy Task 32 and ESKOM jointly organised an expert workshop on\u00a0the opportunties for bioenergy in South Africa. The workshop aimed at discussing the potential for applying various bioenergy technologies in the South African economy.<\/p>\n The presentations can be downloaded\u00a0here<\/a>.<\/p>\n <\/p>\n Factsheet on gasification for indirect cofiring available<\/b><\/p>\n IEA Bioenergy Task 33 has produced a factheet on gasification for indirect cofiring of biomass with coal. The factsheet is available\u00a0here<\/a>.<\/p>\n Workshop on High Temperature Corrosion in biomass combustion plants at the World Bioenergy Conference<\/b><\/p>\n Biomass power plant owners increasingly thrive for the use the cheap and therefore low biomass grades available, while maintaining high electrical efficiencies. This often results in corrosion related challenges for the boiler materials used.<\/p>\n <\/p>\n Task 32 therefore organised a workshop on the problem of high temperature corrosion, at the World Bioenergy Conference<\/a>, wednesday 4 June 2014. The workshop provided an overview of the fundamental mechanisms behind high temperature corrosion, as well as a number of practical ways to mitigate the corrosion to acceptable levels.<\/p>\n The presentations from the workshop are available\u00a0here<\/a>.<\/p>\n Torrefaction workshop at the Central European Biomass Conference<\/b><\/p>\n Friday 17 Jan 2014, Task 32, Task 40 and the EU SECTOR project organised a workshop on recent progress in the development of torrefaction technologies.<\/p>\n The workshop was held\u00a0 as part of the\u00a0Central European Biomass\u00a0Conference in Graz, Austria<\/a>. All presentations and a summary from the torrefaction workshop VGB Biomass Combustion Conference<\/b><\/p>\n Task 32 supported the VGB Biomass Working Group in the organisation of the expert conference `Challenges in Biomass Combustion\u00b4, 13\/14 November 2013 in Berlin.<\/p>\n The conference covered practical experiences on key operational challenges, varying from ash depositon to\u00a0fire safety.<\/p>\n Expert workshop on CFD for design of industrial biomass combustion\u00a0technologies<\/b><\/p>\n Task 32 organised an expert workshop as a side event of the EU Biomass Conference for equipment suppliers and\u00a0researchers to share practical experiences and address the current opportunities and limitations of CFD based design of industrial biomass combustion appliances.<\/p>\n CFD tools can be very effective in the design of industrial biomass combustion installations. The approach can lead to much better combustion quality and avoid the need of a \u2018try and error\u2019 approach for boiler design and reducing development expenses.<\/p>\n The presentations can be downloaded\u00a0here<\/a>.<\/p>\n IEA Bioenergy Health and Safety review published <\/b><\/p>\n Self-heating, off-gassing and dust explosions are significant\u00a0challenges for the industry that have already resulted in significant\u00a0losses of capital investments and even tragic loss of life. Likewise,\u00a0exposure to biologically active material, such as moulds and spores may\u00a0form a serious hazard for the health of workers involved. With the\u00a0growth of the bioenergy sector, it is important not only that\u00a0opportunities for bioenergy are implemented in an efficient and economic\u00a0manner, but also safely.<\/p>\n IEA Bioenergy recognises the importance of safe production, trade and\u00a0utilisation of a growing amount of biomass fuels. This publication focuses on the health and safety issues of the supply chain of solid biofuels with the objective to highlight commonly used mitigation methodologies to promote a better working environment when dealing with solid biofuels. It has been compiled as a joint effort by experts active\u00a0in Task 32, 36<\/a>, 37<\/a> and\u00a040<\/a> of the\u00a0IEA Bioenergy\u00a0Agreement<\/a>, with their own specific fields of expertise.<\/p>\n Although this publication does provide the reader with significant understanding of the relevant safety issue as well as several guidelines for handling, storage and transportation, it is important to realize that differences in material also lead to differences in risks and needs for safety measures, and every individual situation needs to be carefully assessed. The topic also remains important as new biofuels enter the market.<\/p>\n The full report can be downloaded \u00a0here<\/a>.<\/p>\n Torrefaction review published <\/b><\/p>\n Task 32 prepared a review of torrefaction technologies, describing the\u00a0technology status, advantages and disadvantages, economical aspects and\u00a0potential impact.<\/p>\n The report can be downloaded here<\/a>.<\/p>\n <\/p>\n Workshop on aerosols in small scale combustion at IEA Bioenergy Conference in Vienna, 13-15 November 2012<\/b><\/p>\n At the IEA Bioenergy Conference in Vienna, Task 32 organised a special session on recent developments in small scale biomass combustion technologies,\u00a0with a focus on formation, impact and mitigation of aerosols. The presentations can be found \u00a0here<\/a>.<\/p>\n Torrefaction workshop at the EU Biomass Conference<\/b><\/p>\n Task 32 and the EU SECTOR project\u00a0<\/a>jointly organised a workshop on torrefaction as parallel event at the last EU\u00a0 Biomass\u00a0Conference in Milan.<\/p>\n The presentations of the workshop can be downloaded\u00a0here<\/a>.<\/p>\n Task 32 was responsible for a feature article on developments in the\u00a02011 annual report of IEA BIoenergy. This article, prepared by the\u00a0authors of the Pellet Handbook, gives a very good overview of the\u00a0current situation with regard to production and utilisation of biomass\u00a0pellets. Report on Options for increased utilisation of ash from biomass\u00a0combustion and cofiring<\/b><\/p>\n KEMA, TU Graz and BIOS BIOENERGYSYSTEME GmbH recently performed a survey\u00a0on behalf of Task 32 on the options for increased utilisation of biomass\u00a0ash. The study covers different ash fractions from both dedicated combustion installations as well as biomass cofiring installations. In the report, both existing applications in the Task 32 member countries\u00a0are listed, and possibly future applications are indicated.<\/p>\n The full report is available here<\/a>.<\/p>\n Status report on small scale particle precipitiation devices<\/b><\/p>\n <\/a>On behalf of Task 32, TU Graz and BIOS BIOENERGYSYSTEME GmbH carried out a\u00a0survey on the present status of various technologies for particle\u00a0precipitation for residential biomass combustion (up to 50 kW).<\/p>\n The first part of the report gives an overview of the current level of\u00a0emissions from small scale biomass combustion in the various Task 32\u00a0member countries, and the need to reduce these emissions.<\/p>\n The second part of the report provides an assessment of the various\u00a0technologies currently under development in terms of their technical performance, costs and convenience.<\/p>\n The full report is available \u00a0here<\/a>.<\/p>\n International workshop on Cofiring Biomass with Coal, Copenhagen,\u00a027-28 March, 2012<\/b><\/p>\n Together with the IEA Clean Coal Centre<\/a> and\u00a0VGB Powertech<\/a>, IEA Bioenergy Task 32\u00a0organised a 2-day international workshop on Cofiring Biomass with\u00a0Coal to highlight the latest developments in this field. The workshop\u00a0was held 27-28 March, 2012 in Copenhagen, Denmark.<\/p>\n The presentations of the workshop can be downloaded\u00a0here<\/a><\/p>\n Irish national workshop on local developments in small scale biomass combustion,\u00a0Dublin, 18 October, 2011<\/b><\/p>\n IEA Bioenergy Task 32 organised a\u00a0national Irish workshop on ‘Local developments in Small Scale Biomass\u00a0Combustion’ in Dublin, together with Sustainable Energy Authority\u00a0Ireland and Teagasc.<\/p>\n The presentations can be downloaded\u00a0here<\/a><\/p>\n <\/p>\n Workshop on Processing routes for Solid Recovered Fuels,\u00a0Dublin, 20 October, 2011<\/b><\/p>\n IEA Bioenergy Task 32\u00a0and Task 36<\/a> have\u00a0jointly organised a workshop and field trip in Dublin to discuss the\u00a0market opportunities for Solid Recovered Fuels.<\/p>\n The presentations can be downloaded\u00a0here<\/a><\/p>\n <\/p>\n Workshop on Aerosols from Small Scale Biomass Combustion plants,\u00a0Graz, 27 january, 2011<\/b><\/p>\n IEA Bioenergy Task 32 organised a workshop on ‘Aerosols from\u00a0Small-scale Biomass Combustion Plants’, as part of\u00a0the Central European Biomass Conference (CEBC) in Graz. The workshop\u00a0gave a status update of the current knowledge of the formation\u00a0mechanisms, primary and secondary mitigation measures and health\u00a0impacts.<\/p>\n Presentations from the workshop can be downloaded\u00a0here<\/a><\/p>\n Workshop on Torrefaction technologies, Graz, 28 january, 2011<\/b><\/p>\n IEA Bioenergy Task 32 and 40 jointly organised a workshop on the\u00a0development of torrefaction technologies and the possible impacts on\u00a0global bioenergy use and international bioenergy trade.<\/p>\n This workshop was organised as part of\u00a0the Central European Biomass Conference (CEBC) in Graz. The\u00a0presentations are available\u00a0here<\/a> .<\/p>\n Email newsletter<\/b><\/p>\n IEA Bioenergy Task 32 now has an electronic newsletter!\u00a0Sign up here <\/a>to receive the newsletter twice per year.<\/p>\n Works<\/b>hop on\u00a0“State-of-the-art technologies for small biomass\u00a0co-generation”<\/strong><\/p>\n IEA Bioenergy Task 32 and 33 have jointly organised a workshop on new\u00a0developments in small scale power production from solid biomass.<\/p>\n The workshop was held Thursday 7 October 2010 in Copenhagen and\u00a0attracted about 85 participants.<\/p>\n The presentations and the full report including an evaluation of the\u00a0technologies are available\u00a0here<\/a>.<\/p>\n The Pellet Handbook\u00a0 <\/b><\/p>\n This handbook was written and edited by experienced professionals<\/p>\n from IEA Bioenergy Task 32 in cooperation with BIOS BIOENERGIESYSTEME\u00a0GmbH, Graz, Austria, other IEA Tasks and external experts. It is the\u00a0first comprehensive guide (over 500 pages) in English language covering\u00a0all pellet related issues, such as quality standards, application\u00a0markets and technologies, production methods, logistical aspects, etc.<\/p>\n The book can be ordered at publisher Routledge Taylor and Francis. More\u00a0details can be found\u00a0here<\/a>.<\/p>\n Paperback edition of Combustion Handbook\u00a0 available<\/b><\/p>\n <\/a><\/b>The Handbook of Biomass Combustion and Cofiring is now available as a\u00a0paperback edition against a discounted price of 49.99 Euro. It is very\u00a0comprehensive and well suited for education purposes.<\/p>\n Click here<\/a> for more information on the\u00a0contents or\u00a0here<\/a> for a direct link to the publisher’s ordering page.<\/p>\n Expert meeting on Combustion of Challenging Biomass Fuels <\/b><\/p>\n An upcoming issue driven by the difference in fuel price of is the The combustion technology needs to be properly designed or adapted to At the same time, it can be observed that the superheater steam At the European Bioenergy Conference in Review paper on modelling Slagging and Fouling in Cofiring available<\/b><\/p>\n A review paper on models and tools for predicting slagging and Continuation of Task 32<\/b><\/p>\n Task 32 has received an extension of its activities until 2012. From\n
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\nnanoparticles. This workshop was an integral part of the\u00a020th Nanoparticle Conference<\/a>, held\u00a0in Z\u00fcrich from 13-16 June 2016. All presentations are available\u00a0here<\/a>.<\/p>\n
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\nNevertheless, it is clear that the companies involved have significantly improved their ability to produce high quality products, with pellets of comparable durability to conventional wood pellets.<\/p>\n
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\nThe\u00a0rapid increase in the production and use of various types of biomass as\u00a0energy carrier also leads to an increase in handling and storage\u00a0activities throughout the supply chain. The properties of a biomass\u00a0material and the intended use determine how the material should be\u00a0safely transported and stored.<\/p>\n
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\n<\/a>Special\u00a0feature article on biomass pellets in\u00a0IEA Bioenergy annual report<\/b><\/p>\n
\nThe annual report is available here<\/a>.<\/p>\n
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\n<\/a>Task\u00a032 took the initiative to compose a very comprehensive handbook on\u00a0pellet production and utilisation.<\/p>\n
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\ndesire to burn uncommon and challenging fuels with low ash melting
\ntemperatures and high N and Cl content, such as (pellets from) agrifuels
\nsuch as straw and press cake, reed canary grass, RDF, chicken litter,
\netc.<\/p>\n
\nbe able to deal with these fuels, as it may lead to excessive corrosion
\nin boiler tubes, excessive slagging and fouling as well as much higher
\nemission of NOx and (fine) particles.<\/p>\n
\ntemperature (and thereby electric efficiency) of biomass power plants
\nfor challenging fuels has over the years increased significantly, for
\nexample there are power plants based on straw that generated steam of
\n540\u00b0C. This mainly depends mainly on the biomass composition, the boiler
\nconfiguration and the boiler materials used.<\/p>\n
\nLyon (May 2010)<\/a>, Task 32 organised an expert workshop on
\n‘Combustion of Challenging Biomass Fuels’ . The presentations are
\navailable here<\/a> .<\/p>\n
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\nfouling in installations that cofire biomass, was prepared under
\ncoordination of KEMA and is available
\nhere<\/a>.<\/p>\n
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\n2010 onwards, the number of countries involved will increase to 14.
\nActivities to be performed are<\/p>\n