{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/122275"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/122275","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Combine performance evaluation and grain loss distribution characterization for corn and soybeans","abstract":"Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-12-01","abstract_html":"Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-12-01","abstract_has_math":false,"creators":["Rexroad, William"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Engr Tech & Mgmt for Ag Sys","degree_department":null,"school":null,"contributors":["Allen, Cody M","Davidson, Paul","Issa, Salah"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2023,"date_issued":"2023-12","date_published":"2023-12","updated_at":"2026-07-22T22:25:00Z","subjects":["Combines","Grain Loss","Fuel Consumption","Grain Quality"],"languages":["en","eng"],"rights":["Copyright 2023 William Rexroad"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/122275","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Allen, Cody M","Davidson, Paul","Issa, Salah"]},{"key":"dc:creator","label":"Author","values":["Rexroad, William"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2023-12","2023-12-08"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Engr Tech & Mgmt for Ag Sys"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Combines","Grain Loss","Fuel Consumption","Grain Quality"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2023 William Rexroad"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/122275"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-12-01","The student, William Rexroad, accepted the attached license on 2023-12-07 at 20:52.","The student, William Rexroad, submitted this Thesis for approval on 2023-12-07 at 21:09.","This Thesis was approved for publication on 2023-12-08 at 14:47.","DSpace SAF Submission Ingestion Package generated from Vireo submission #20171 on 2024-03-01 at 13:57:46","Modern combines continue to get larger and are expected to harvest more acres in a shorter amount of time. There is an increased importance on accurately and efficiently evaluating the performance of these machines. The presented work looks into an economical and accurate method to understand combine performance and grain loss distribution while harvesting corn (Maize) and soybeans (Glycine max) with three Class 9 combines. This is done by utilizing 11 drop pans across the width of the machine and header to capture grain losses, data loggers to capture the combines telemetry data, and grain samples to evaluate the combines ability to thresh and clean the grain. The analysis resulting from this case study shows differences like a 3.6 bushels per acre higher loss rate for Combine C over Combine B in soybeans between the three combines in an efficient in-field method to better understand how effective these combines are at harvesting a crop, and a 3 gallons per hour higher fuel consumption rate for Combine C than Combine A and B in corn. The 11 drop pans and the four manual measurements are also utilized to create a distribution curve for loss and residue distribution measurement. This enables a better understanding of where the losses are occurring behind the combine and what percent of losses the measured area represents for the entire area that is being harvested. As shown, different combines distribute losses at different locations, so it is important for operators to understand the distribution differences."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Combine performance evaluation and grain loss distribution characterization for corn and soybeans"]}]}],"canonical_facts":{"dc:contributor":["Allen, Cody M","Davidson, Paul","Issa, Salah"],"dc:creator":["Rexroad, William"],"dc:date":["2023-12","2023-12-08"],"dc:description":["Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-12-01","The student, William Rexroad, accepted the attached license on 2023-12-07 at 20:52.","The student, William Rexroad, submitted this Thesis for approval on 2023-12-07 at 21:09.","This Thesis was approved for publication on 2023-12-08 at 14:47.","DSpace SAF Submission Ingestion Package generated from Vireo submission #20171 on 2024-03-01 at 13:57:46","Modern combines continue to get larger and are expected to harvest more acres in a shorter amount of time. There is an increased importance on accurately and efficiently evaluating the performance of these machines. The presented work looks into an economical and accurate method to understand combine performance and grain loss distribution while harvesting corn (Maize) and soybeans (Glycine max) with three Class 9 combines. This is done by utilizing 11 drop pans across the width of the machine and header to capture grain losses, data loggers to capture the combines telemetry data, and grain samples to evaluate the combines ability to thresh and clean the grain. The analysis resulting from this case study shows differences like a 3.6 bushels per acre higher loss rate for Combine C over Combine B in soybeans between the three combines in an efficient in-field method to better understand how effective these combines are at harvesting a crop, and a 3 gallons per hour higher fuel consumption rate for Combine C than Combine A and B in corn. The 11 drop pans and the four manual measurements are also utilized to create a distribution curve for loss and residue distribution measurement. This enables a better understanding of where the losses are occurring behind the combine and what percent of losses the measured area represents for the entire area that is being harvested. As shown, different combines distribute losses at different locations, so it is important for operators to understand the distribution differences."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/122275"],"dc:language":["en","eng"],"dc:rights":["Copyright 2023 William Rexroad"],"dc:subject":["Combines","Grain Loss","Fuel Consumption","Grain Quality"],"dc:title":["Combine performance evaluation and grain loss distribution characterization for corn and soybeans"],"dc:type":["text"],"thesis:degree_discipline":["Engr Tech & Mgmt for Ag Sys"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:00Z"}