A new grain harvesting system for single-pass grain harvest, biomass collection, crop residue sizing, and grain segregation

Mark C Siemens, Donald E. Hulick

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A cereal grain harvesting system is introduced that combines existing technologies in a unique way to improve cereal grain harvest performance, increase profitability, and efficiently collect biomass. The harvesting system is comprised of three machines: one to reap grain, harvest biomass, and size crop residue for no-till seeding; a second to thresh and winnow the grain; and a third to separate the grain by quality for added value. This study describes the new harvesting system and the development of one of the system's major components: the reaper/flail harvester. The reaper/flail harvester consists of a mobile power unit, a stripper header to harvest the crop, and a flail to chop the standing residue into small pieces. A prototype harvester was fabricated and tested to determine system design criteria and performance characteristics in terms of machine power requirements, quantity of biomass collected, and bulk density of the material harvested. Trials were conducted in seven wheat (Triticum aestivum L.) fields in Oregon during 2005 and 2006 that ranged in yield from 3.3 to 6.4 t ha -1. Harvester performance was evaluated at various travel speeds, straw chop heights, and with different types of wheat. Flail power requirements were highly linearly correlated with quantity and rate of biomass chopped (R 2 = 0.91). The maximum reaping power requirement was 2.7 kW m -1, only slightly higher than the no-load power requirement of 1.9 kW m -1. Power requirements for reaping, conveying, and flailing ranged from a low of 5.0 to a high of 13.5 kW m -1 depending on travel speed, crop yield, biomass concentration, and chop height. Values were linearly correlated with the combined grain, chaff, and biomass feed rate (t h -1) with an R 2 of 0.88. Total machine power requirements for a harvester with a 7.3 m header would be about 175 kW, including 75 kW for propulsion, losses, and reserve. Chaff yield in the grain/chaff (graff) mixture harvested exceeded 2 t ha -1 in six of the seven trials. With chaff valued at $23 t -1, collecting 2 t ha -1 of chaff would increase farm revenues by $46 ha -1. Realistic graff densities of awned wheat were less than 1/11 that of clean grain, and new, efficient material handling systems would need to be developed to have harvesting capacities comparable to that of a conventional combine-based system. Awnless wheat had graff densities that averaged about 1/5 that of clean grain. Equipment is commercially available to handle this volume of material and have harvesting field capacities comparable to that of a conventional combine-based system.

Original languageEnglish (US)
Pages (from-to)1519-1527
Number of pages9
JournalTransactions of the ASABE
Volume51
Issue number5
StatePublished - Sep 2008

Fingerprint

chaff
crop residue
crop residues
Biomass
Crops
Triticum
flails
energy requirements
harvesters
biomass
Harvesters
wheat
chops
cereal
travel
small cereal grains
field capacity
materials handling
seeding
profitability

Keywords

  • Biomass
  • Biomass collection
  • Cereal grain
  • Chaff
  • Flail
  • Harvester
  • Harvesting system
  • Power requirement
  • Reaper
  • Residue management
  • Stripper header
  • Wheat

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Biomedical Engineering
  • Food Science
  • Forestry
  • Soil Science

Cite this

A new grain harvesting system for single-pass grain harvest, biomass collection, crop residue sizing, and grain segregation. / Siemens, Mark C; Hulick, Donald E.

In: Transactions of the ASABE, Vol. 51, No. 5, 09.2008, p. 1519-1527.

Research output: Contribution to journalArticle

@article{c0fb98a5b6bc49a0bdf5ec70eff34976,
title = "A new grain harvesting system for single-pass grain harvest, biomass collection, crop residue sizing, and grain segregation",
abstract = "A cereal grain harvesting system is introduced that combines existing technologies in a unique way to improve cereal grain harvest performance, increase profitability, and efficiently collect biomass. The harvesting system is comprised of three machines: one to reap grain, harvest biomass, and size crop residue for no-till seeding; a second to thresh and winnow the grain; and a third to separate the grain by quality for added value. This study describes the new harvesting system and the development of one of the system's major components: the reaper/flail harvester. The reaper/flail harvester consists of a mobile power unit, a stripper header to harvest the crop, and a flail to chop the standing residue into small pieces. A prototype harvester was fabricated and tested to determine system design criteria and performance characteristics in terms of machine power requirements, quantity of biomass collected, and bulk density of the material harvested. Trials were conducted in seven wheat (Triticum aestivum L.) fields in Oregon during 2005 and 2006 that ranged in yield from 3.3 to 6.4 t ha -1. Harvester performance was evaluated at various travel speeds, straw chop heights, and with different types of wheat. Flail power requirements were highly linearly correlated with quantity and rate of biomass chopped (R 2 = 0.91). The maximum reaping power requirement was 2.7 kW m -1, only slightly higher than the no-load power requirement of 1.9 kW m -1. Power requirements for reaping, conveying, and flailing ranged from a low of 5.0 to a high of 13.5 kW m -1 depending on travel speed, crop yield, biomass concentration, and chop height. Values were linearly correlated with the combined grain, chaff, and biomass feed rate (t h -1) with an R 2 of 0.88. Total machine power requirements for a harvester with a 7.3 m header would be about 175 kW, including 75 kW for propulsion, losses, and reserve. Chaff yield in the grain/chaff (graff) mixture harvested exceeded 2 t ha -1 in six of the seven trials. With chaff valued at $23 t -1, collecting 2 t ha -1 of chaff would increase farm revenues by $46 ha -1. Realistic graff densities of awned wheat were less than 1/11 that of clean grain, and new, efficient material handling systems would need to be developed to have harvesting capacities comparable to that of a conventional combine-based system. Awnless wheat had graff densities that averaged about 1/5 that of clean grain. Equipment is commercially available to handle this volume of material and have harvesting field capacities comparable to that of a conventional combine-based system.",
keywords = "Biomass, Biomass collection, Cereal grain, Chaff, Flail, Harvester, Harvesting system, Power requirement, Reaper, Residue management, Stripper header, Wheat",
author = "Siemens, {Mark C} and Hulick, {Donald E.}",
year = "2008",
month = "9",
language = "English (US)",
volume = "51",
pages = "1519--1527",
journal = "Transactions of the ASABE",
issn = "2151-0032",
publisher = "American Society of Agricultural and Biological Engineers",
number = "5",

}

TY - JOUR

T1 - A new grain harvesting system for single-pass grain harvest, biomass collection, crop residue sizing, and grain segregation

AU - Siemens, Mark C

AU - Hulick, Donald E.

PY - 2008/9

Y1 - 2008/9

N2 - A cereal grain harvesting system is introduced that combines existing technologies in a unique way to improve cereal grain harvest performance, increase profitability, and efficiently collect biomass. The harvesting system is comprised of three machines: one to reap grain, harvest biomass, and size crop residue for no-till seeding; a second to thresh and winnow the grain; and a third to separate the grain by quality for added value. This study describes the new harvesting system and the development of one of the system's major components: the reaper/flail harvester. The reaper/flail harvester consists of a mobile power unit, a stripper header to harvest the crop, and a flail to chop the standing residue into small pieces. A prototype harvester was fabricated and tested to determine system design criteria and performance characteristics in terms of machine power requirements, quantity of biomass collected, and bulk density of the material harvested. Trials were conducted in seven wheat (Triticum aestivum L.) fields in Oregon during 2005 and 2006 that ranged in yield from 3.3 to 6.4 t ha -1. Harvester performance was evaluated at various travel speeds, straw chop heights, and with different types of wheat. Flail power requirements were highly linearly correlated with quantity and rate of biomass chopped (R 2 = 0.91). The maximum reaping power requirement was 2.7 kW m -1, only slightly higher than the no-load power requirement of 1.9 kW m -1. Power requirements for reaping, conveying, and flailing ranged from a low of 5.0 to a high of 13.5 kW m -1 depending on travel speed, crop yield, biomass concentration, and chop height. Values were linearly correlated with the combined grain, chaff, and biomass feed rate (t h -1) with an R 2 of 0.88. Total machine power requirements for a harvester with a 7.3 m header would be about 175 kW, including 75 kW for propulsion, losses, and reserve. Chaff yield in the grain/chaff (graff) mixture harvested exceeded 2 t ha -1 in six of the seven trials. With chaff valued at $23 t -1, collecting 2 t ha -1 of chaff would increase farm revenues by $46 ha -1. Realistic graff densities of awned wheat were less than 1/11 that of clean grain, and new, efficient material handling systems would need to be developed to have harvesting capacities comparable to that of a conventional combine-based system. Awnless wheat had graff densities that averaged about 1/5 that of clean grain. Equipment is commercially available to handle this volume of material and have harvesting field capacities comparable to that of a conventional combine-based system.

AB - A cereal grain harvesting system is introduced that combines existing technologies in a unique way to improve cereal grain harvest performance, increase profitability, and efficiently collect biomass. The harvesting system is comprised of three machines: one to reap grain, harvest biomass, and size crop residue for no-till seeding; a second to thresh and winnow the grain; and a third to separate the grain by quality for added value. This study describes the new harvesting system and the development of one of the system's major components: the reaper/flail harvester. The reaper/flail harvester consists of a mobile power unit, a stripper header to harvest the crop, and a flail to chop the standing residue into small pieces. A prototype harvester was fabricated and tested to determine system design criteria and performance characteristics in terms of machine power requirements, quantity of biomass collected, and bulk density of the material harvested. Trials were conducted in seven wheat (Triticum aestivum L.) fields in Oregon during 2005 and 2006 that ranged in yield from 3.3 to 6.4 t ha -1. Harvester performance was evaluated at various travel speeds, straw chop heights, and with different types of wheat. Flail power requirements were highly linearly correlated with quantity and rate of biomass chopped (R 2 = 0.91). The maximum reaping power requirement was 2.7 kW m -1, only slightly higher than the no-load power requirement of 1.9 kW m -1. Power requirements for reaping, conveying, and flailing ranged from a low of 5.0 to a high of 13.5 kW m -1 depending on travel speed, crop yield, biomass concentration, and chop height. Values were linearly correlated with the combined grain, chaff, and biomass feed rate (t h -1) with an R 2 of 0.88. Total machine power requirements for a harvester with a 7.3 m header would be about 175 kW, including 75 kW for propulsion, losses, and reserve. Chaff yield in the grain/chaff (graff) mixture harvested exceeded 2 t ha -1 in six of the seven trials. With chaff valued at $23 t -1, collecting 2 t ha -1 of chaff would increase farm revenues by $46 ha -1. Realistic graff densities of awned wheat were less than 1/11 that of clean grain, and new, efficient material handling systems would need to be developed to have harvesting capacities comparable to that of a conventional combine-based system. Awnless wheat had graff densities that averaged about 1/5 that of clean grain. Equipment is commercially available to handle this volume of material and have harvesting field capacities comparable to that of a conventional combine-based system.

KW - Biomass

KW - Biomass collection

KW - Cereal grain

KW - Chaff

KW - Flail

KW - Harvester

KW - Harvesting system

KW - Power requirement

KW - Reaper

KW - Residue management

KW - Stripper header

KW - Wheat

UR - http://www.scopus.com/inward/record.url?scp=55249101502&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=55249101502&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:55249101502

VL - 51

SP - 1519

EP - 1527

JO - Transactions of the ASABE

JF - Transactions of the ASABE

SN - 2151-0032

IS - 5

ER -