Effects of three cutting blade designs on energy consumption during mowing-conditioning of Miscanthus Giganteus

Hao Gan, Sunil Mathanker, Md Abdul Momin, Brendan Kuhns, Neal Stoffel, Alan Hansen, Tony Grift

Research output: Contribution to journalArticle

Abstract

This study compared energy consumption during harvest of Miscanthus Giganteus with a New Holland H8080 mower-conditioner among three cutting blade designs being 1) straight, 2) straight, angled at 30° and 3) serrated. Square bales were produced by a New Holland BB9080 large square baler. To calculate energy consumption per unit crop mass in MJ Mg−1, bales of known mass were identified, and the cutting energy to produce this bale was calculated by accumulating the mower-conditioner's energy consumption across the collection area associated with that bale. Energy consumption was also expressed as a Percentage of Inherent Heating Value (PIHV), where energy consumption was divided by the heating value of Miscanthus Giganteus (17.7 GJ Mg−1). Average energy requirement for the whole machine were 12.31 MJ Mg−1 (0.070 PIHV), 11.31 MJ Mg−1 (0.064 PIHV), and 9.27 MJ Mg−1 (0.052 PIHV) for straight, angled and serrated blades respectively. Average energy requirements for the header were 9.50 MJ Mg−1 (0.054 PIHV), 8.32 MJ Mg−1 (0.047 PIHV), and 7.20 MJ Mg−1 (0.041 PIHV) for straight, angled and serrated blades respectively. Average energy requirements for traction were 0.96 MJ Mg−1 (0.005 PIHV), 1.21 MJ Mg−1 (0.007 PIHV), and 1.04 MJ Mg−1 (0.006 PIHV) for straight, angled and serrated blades respectively. The theoretical field capacity increased from straight blades at 1.35 ha h−1 to angled blades at 1.52 ha h−1 to serrated blades at 2.23 ha h−1. Evidently, the design of cutting blades had a significant effect on energy consumption and field performance of biomass harvesting equipment.

Original languageEnglish (US)
Pages (from-to)166-171
Number of pages6
JournalBiomass and Bioenergy
Volume109
DOIs
StatePublished - Feb 2018

Keywords

  • Bioenergy
  • Biomass
  • Disc-cutter
  • Field capacity
  • Harvesting
  • Machine performance

ASJC Scopus subject areas

  • Forestry
  • Renewable Energy, Sustainability and the Environment
  • Agronomy and Crop Science
  • Waste Management and Disposal

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