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Calculation model of the tractor transport set - Economic and environmental indicators

Author

Listed:
  • Karel Kubín

    (Research Institute of Agricultural Engineering, p.r.i., Prague - Ruzyně, Czech Republic)

  • Martin Pexa

    (Department for Quality and Dependability of Machines, Faculty of Engineering, Czech University of Life Sciences in Prague, Prague, Czech Republic)

  • Michal Holúbek

    (Department for Quality and Dependability of Machines, Faculty of Engineering, Czech University of Life Sciences in Prague, Prague, Czech Republic)

Abstract

This contribution presents a calculation method of indicators in agricultural transport. The tractor Zetor Forterra 8641 with a silage trailer was used. Calculations were performed with various weights of transported material: 2.5, 3.6, 5.8, 7.4 and 9.0 tons. The model was created concerning significant parameters of the transport set, engine characteristics and route. It considered splitting of the route into elementary sections, in which important route parameters were regarded as constant. Indicators were defined in every section (fuel consumption, emissions, etc.) and overall values were calculated as a sum. The set with 7.4 t of load reached the lowest unit costs 20.62 CZK.tkm-1, transport output 79.51 tkm.h-1 and unit consumption 0.14 L.tkm-1. The set with the maximum load 9.0 t reached output 86.05 tkm.h-1 but unit costs were 20.68 CZK.tkm-1. Using the maximum capacity was not the most effective option. When the weight of a load increased (from 2.5 to 9.0 t), driving time extended from 0.28 to 0.46 h and hourly transportation output increased from 38.60 to 86.05 tkm.h-1, unit consumption decreased from 0.24 to 0.13 L.tkm-1. Total emissions significantly increased, but unit emissions decreased in average two times for each pollutant.

Suggested Citation

  • Karel Kubín & Martin Pexa & Michal Holúbek, 2021. "Calculation model of the tractor transport set - Economic and environmental indicators," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 67(2), pages 65-73.
    • Handle: RePEc:caa:jnlrae:v:67:y:2021:i:2:id:51-2020-rae
    DOI: 10.17221/51/2020-RAE
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    References listed on IDEAS

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    1. Miroslav Mimra & Miroslav Kavka & František Kumhála, 2017. "Risk analysis of the business profitability in agricultural companies using combine harvesters," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 63(3), pages 99-105.
    2. O. Syrový & V. Podpěra, 2009. "Simulation mathematical model of expert system for working processes management," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 55(1), pages 1-9.
    3. M. Králik & J. Jablonický & Z. Tkáč & Ľ. Hujo & D. Uhrinová & J. Kosiba & J. Tulik & R. Záhorská, 2016. "Monitoring of selected emissions of internal combustion engine," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 62(SpecialIs), pages 66-70.
    4. Jiří Souček & Radek Pražan & Amitava Roy & Petr Plíva & Antonín Jelínek & Jiří Vegricht, 2017. "Comparison of logistic, energy and exploitative parameters of compost and manure application by spreaders," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 63(SpecialIs), pages 33-39.
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