Impact of cutting speed, blade type, and blade angle on miscanthus harvesting energy requirement

Justin D. Maughan, Sunil K. Mathanker, Brian M. Fehrenbacher, Tony E Grift, Alan Christopher Hansen

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

Abstract

Previous studies have shown that cutting speed and blade configurations play a critical role in crop harvesting. Laboratory cutting studies showed that optimization of cutting speed and blade oblique angle resulted in considerable savings in cutting energy. This study investigated the effect of cutting speed, blade oblique angle, and blade fixture in a field setting. To investigate their effect on miscanthus harvesting power consumption a single disk cutter head platform was developed. It has the provisions to adjust cutting parameters and was instrumented to measure force on push bar, torque, cutting speed, and GPS data. The cutting energy was determined at three cutting speeds (31.5 m s -1, 47.3 m s-1, 63.0 m s-1), three oblique angles (0°, 30°, 40°), and two blade fixtures (fixed, flexible). The differences between the blade fixtures were found to be negligible. A 40° oblique angle operating at 31.5 m s-1 had the lowest energy consumption, averaging 9.1 MJ ha-1. Similarly, a 30° oblique angle consumed 16.9 MJ ha-1 and a straight blade (0°) consumed 23.1 MJ ha-1. The results indicate that the cutting speed and blade oblique angle are directly related to the power requirements and efficiency of miscanthus harvesting machinery. It is expected that the results of this study would help in modifying existing miscanthus harvesters.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012
PublisherAmerican Society of Agricultural and Biological Engineers
Pages3245-3253
Number of pages9
ISBN (Print)9781622762088
StatePublished - Jan 1 2012
EventAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2012 - Dallas, TX, United States
Duration: Jul 29 2012Aug 1 2012

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012
Volume4

Other

OtherAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2012
CountryUnited States
CityDallas, TX
Period7/29/128/1/12

Keywords

  • Angle
  • Bioenergy
  • Biomass
  • Biomaterial
  • Blades
  • Energy
  • Energy requirement
  • Miscanthus
  • Power
  • Power requirement

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Bioengineering

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  • Cite this

    Maughan, J. D., Mathanker, S. K., Fehrenbacher, B. M., Grift, T. E., & Hansen, A. C. (2012). Impact of cutting speed, blade type, and blade angle on miscanthus harvesting energy requirement. In American Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012 (pp. 3245-3253). (American Society of Agricultural and Biological Engineers Annual International Meeting 2012, ASABE 2012; Vol. 4). American Society of Agricultural and Biological Engineers.