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Description: Biomass pellets were made from milled oat straw supplemented with manure. Pellets were compressed to 90 MPa. Samples were compressed at a rate of 100 mm/min and mixed to ratios of 0:1, 20:80, 40:60, 60:40, 80:20, and 1:0 of manure to oat straw by mass for the density and strength tests. Three characteristics of the biomass pellets were measured for each ratio set: density of a single pellet, pellet strength (durability), and specific energy. Increasing the manure content up to 40% raised the density of a single pellet from 908 to 1064 kg/m3 while increasing beyond 40 % had a minimal increase to 1074 kg/m3. Manure content was found to be directly proportionate to the strength of the pellets at concentrations of 40 %, after which there was no increase. Increasing the manure concentration from 0 to 20 % caused a 76 % increase in strength, and a further 104 % increase from 20 to 40 %. The pellet samples with manure content of 0 % had the highest specific energy at 15.85 MJ/kg, with the specific energy decreasing linearly to 13.68 MJ/kg as manure content reached 100 %. It was predicted that a 5 percent increase in manure content would cause a decrease of 111.50 kJ/kg in specific energy of the pellets.

Keywords: biomass, calorimeter, compression, manure, specific-energy
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Date: 2017-08-07
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Conference name: CSBE/SCGAB 2017 Annual Conference, Canad Inns Polo Park, Winnipeg, Manitoba, 6-10 August 2017.
Session name: Session 2A: Biomass as a Sustainable Feedstock for Solid Fuel

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Type: Text.Article
Format: PDF
Publication type: Technical conference
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Coverage: Canada
Language 1: en
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Rights: Canadian Society for Bioengineering
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