Commercial scale grinding of corn stover and perennial grasses

Nalladurai Kaliyan, David R. Schmidt, R. Vance Morey

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Performances of two commercial grinders [349 and 463 kW (475 and 630 HP)] were studied to produce coarsely ground particles from round-baled, plastic net-wrapped corn stover and native perennial grasses. The effects of grinder screen size [19.1 mm (0.75 in.) to 127.0 mm (5.0 in.)] and feedstock on the particle size, bulk density, throughput, and specific energy consumption were studied. The bulk density of ground biomass ranged from 69 to 207 kg/m 3 (4 to 13 lb/ft3). The throughput of the grinders ranged from 5 to 45 t/h. The specific energy consumption ranged from 68 to 804 MJ/t. Increasing the grinder screen size decreased the bulk density and specific energy consumption, but increased the particle size and throughput. High moisture bales (25% or higher moisture content) decreased the performance of the grinders. The results from this study would be useful for developing a biomass supply logistics system involving mobile grinding.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2010, ASABE 2010
PublisherAmerican Society of Agricultural and Biological Engineers
Pages3210-3225
Number of pages16
ISBN (Print)9781617388354
StatePublished - 2010

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2010, ASABE 2010
Volume4

Keywords

  • Bulk density
  • Corn stover
  • Perennial grasses
  • Specific energy
  • Tub grinding

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