Saeed, MA, Slatter, D, Andrews, GE orcid.org/0000-0002-8398-1363 et al. (2 more authors) (2016) Combustion of Pulverized Biomass Crop Residues and Their Explosion Characteristics. Combustion Science and Technology, 188 (11-12). pp. 2200-2216. ISSN 0010-2202
Abstract
Two Pakistani crop residues bagasse (B) and wheat straw (WS), both with high ash content, were milled to <63µm and the ISO 1 m3 explosion equipment was used to investigate flame propagation in the dispersed cloud of pulverised biomass. Their turbulent flame speed was measured and the Kst (dP/dtmaxV1/3) and comparison was made with two pulverised coal samples. Minimum Explosion Concentration (MEC) values for B and WS were, in terms of the burnt dust mass equivalence ratio (Ø) 0.2Ø to 0.3Ø , which was leaner than for the coal samples. These MEC were lower than had previously been determined using the Hartmann explosion tube, and this was considered to be due to the 10 kJ ignition energy in the 1 m3 equipment and 4J spark energy in the Hartmann explosion tube, which extended the lean limit in the 1 m3 equipment. Peak turbulent flame speeds were 3.8 m/s for B and 3.0 m/s for WS compared with 3.5–5.2 m/s for the two coal samples. The peak Kst was 103 bar m/s for bagasse and 80 bar m/s for wheat straw and the two coal samples had peak Kst of 78 and 120 bar m/s. Overall the agricultural biomass and coal samples had a similar range of reactivity. Thus these agricultural crop residues are a viable renewable fuel for co-firing with coal or as 100% biofuel operation of steam power plants.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2016, Taylor & Francis. This is an Accepted Manuscript of an article published by Taylor & Francis in Combustion Science and Technology on 28 October 2016 , available online: https://doi.org/10.1080/00102202.2016.1212604 |
Keywords: | Combustion; Explosibility; Flame Propagation |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) > Energy Research Institute (Leeds) |
Funding Information: | Funder Grant number EPSRC EP/H048839/1 EPSRC EP/H048839/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 08 Nov 2016 15:45 |
Last Modified: | 28 Oct 2017 05:10 |
Published Version: | https://doi.org/10.1080/00102202.2016.1212604 |
Status: | Published |
Publisher: | Taylor & Francis |
Identification Number: | 10.1080/00102202.2016.1212604 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:106710 |