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https://hdl.handle.net/2142/70955
Description
Title
A thermal model of a corn combine
Author(s)
Carson, Jon Martin
Issue Date
1985
Department of Study
Agricultural Engineering
Discipline
Agricultural Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Agricultural
Abstract
The thermal power in a combine is produced by the irreversible processes that occur during the operation of the machine. If the thermal power is not removed at a sufficient rate, the resulting increase in temperature may initiate a fire in the combine.
This study was undertaken to simulate and model the thermal energy transfer in a grain combine harvesting corn (maize). The thermal model was used to estimate the operating temperatures of the combine and evaluate the combustion potential around the machine.
Mathematical relationships representing the power requirements and heat transfer were used in a system simulation to solve for the steady state operating temperatures and power requirements of a combine. An International Harvester 715 Combine was used to verify the model. Field tests were conducted in corn to measure operating temperatures.
The model provided a good macro-analysis of the temperatures and the power requirements for typical conditions in an operating combine.
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