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Type of publication: research article
Type of publication (PDB): Straipsnis Clarivate Analytics Web of Science / Article in Clarivate Analytics Web of Science (S1)
Field of Science: Mechanikos inžinerija / Mechanical Engineering (T009)
Author(s): Janulevičius, Algirdas;Šarauskis, Egidijus;Čiplienė, Aušra;Juostas, Antanas
Title: Estimation of farm tractor performance as a function of time efficiency during ploughing in fields of different sizes
Is part of: Biosystems engineering. San Diego : Elsevier Science, Vol. 179 (2019)
Extent: p. 80-93
Date: 2019
Keywords: Tractor;Load profile;Power utilisation;Fuel consumption;Time efficiency;Field size
Abstract: Tractors have to perform various agricultural tasks in fields of different sizes. While working, tractors consume large amounts of fuel and contribute considerably to pollution of the environment. This study provides a method for the estimation and comparison of tractor performance when ploughing is carried out in fields of different lengths. Tractor performance as a function of time efficiency is estimated during tests with a 160 kW Massey Ferguson MF6499 tractor performing soil ploughing operations. For characterisa- tion of different field sizes, a time efficiency factor was introduced, which was expressed as the ratio between the duration of ploughing operation and the duration of the whole ploughing process including the non-working time. Ploughing of fields with lengths of 200, 300, 500, 750, and 1000 m resulted in time efficiency values of 0.56, 0.67, 0.78, 0.84, and 0.88, respectively. This study analysed the tractor productivity, power utilisation efficiency, fuel consumption, and CO 2 and CO emissions for five fields. These indicators were calculated using the tractor engine Electronic Control Unit (ECU) ‘Load Profile ’ database. Regression analyses demonstrated that the tractor performance indicators perfectly correlate with the time efficiency factor according to either a linear or exponential equation model. It should be noted that the suggested method allows for better estimation and comparison of tractor performance indicators when ploughing is performed in fields with different width-tolength ratios
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio inžinerijos fakultetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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