Mathematical modeling of performance characteristics of combine harvester
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Date
2005
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Journal ISSN
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Publisher
CCSHAU
Abstract
In this study, mathematical models were developed for
pre-harvest loss, header loss, grain breakage, threshing
efficiency, threshing loss and fuel consumption for wheat and
paddy crop harvested by combine harvester. The data was taken
from commercial test reports of twenty-five combines tested at
Northern Region Farm Machinery Training &Testing Institute,
Hisar. Regression analysis was carried out for developing
mathematical models for the afore said variables depending on
the independent variables such as crop yield, moisture content of
the grains at the time of harvesting, forward speed of the
combine, threshing drum speed, and field efficiency. The
developed models were tested for their validity with the actual
performance of the combines and the developed model for header
loss of wheat was compared with existing model given by Audsley
and Boyce. The developed model was found more efficient. With
the help of developed models various dependent variables such as
pre-harvest loss, header loss, grain breakage, threshing efficiency,
threshing loss and fuel consumption can be predicted while
operating with a combine in a particular field. The total crop
residue of wheat and paddy in Haryana was also estimated. It was
44.27 and 24.6 lacks tones respectively for wheat and paddy.