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N-TRE: A Model for the Evaluation of the Narrow Tractors Real Efficiency

  • Lavinia Eleonora GalliEmail author
  • Davide Facchinetti
  • Domenico Pessina
Conference paper
  • 33 Downloads
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 67)

Abstract

The efficiency of the so called “narrow tractors” is affected not only by their engine and transmission design evolution, but also by the usage modes adopted. In fact, especially in vineyards and orchards, many tasks do not require high engine power and traction pull, but only a remarkable oil flow, because many implements are hydraulically driven. The present work is aimed to create a model (also customizable) to evaluate the Narrow Tractor Real Efficiency (N-TRE), taking into account also different scenarios, in terms of time and intensity usage. At a first attempt, the running conditions and the power requirement of the main operations carried out in viticulture were considered on two narrow tractors, simulated in a stationary mode by means of an electromagnetic dynamometer and integrated with a device for measuring the fuel consumption. The basic output has been a series of engine performance curves (power, torque and Specific Fuel Consumption, SFC), both at full and partial loads. On these curves, some characteristic operating points were identified, simulating the typical tractor running conditions when working in vineyard.

Keywords

Diesel engine Performance curves Fuel consumption Narrow tractor efficiency 

References

  1. Degrell O, Feursten T., DLG-PowerMix. (2011). A practical tractor test. Part I & II, DLG, Gross Umstadt, Germany.Google Scholar
  2. Grisso R., Perumpral J., Vaughan D., Roberson G.T., & Pitman R. (2010). Predicting tractor diesel fuel consumption, (pp. 1–10). Virginia Cooperative Extension, Publications 442-073.Google Scholar
  3. Howard, C. N., Kocher, M. F., Hoy, R. M., & Blankenship, E. E. (2011). Testing fuel efficiency of tractors with both continuously variable and standard geared transmissions. Louisville, Kentucky: ASABE Annual International Meeting.Google Scholar
  4. Lopez de Meneses U.B. (2012). Characterization of farms for the machinery potential energy save and efficiency, Bulletin UASVM, Horticulture.Google Scholar
  5. Muñoz-Garcia, M. A., Ortiz-Canavate, J., Gil-Sierra, J., Casanova, J., & Valle, A. (2012). New classifications of tractors according to their energy efficiency. Valencia: CIGR AgEng.Google Scholar
  6. OECD. (2019). OECD Standard Code for the official Testing of Agricultural and Forestry Tractor Performance, Paris.Google Scholar
  7. Ortiz-Cañavate, J., Gil-Sierra, J., Casanova-Kindelán, J., & Gil-Quirós, V. (2009). Classification of agricultural tractors according to the energy efficiencies of the engine and the transmission based on OECD tests. Applied Engineering in Agriculture.Google Scholar
  8. Pieke C., Stark W., Pfister F., & Schyr C. (2017). DLG powermix on the dynamometer, ATZheavy duty worldwide, 2/2017.Google Scholar
  9. Turker U., Ergul I., & Cumhur Eroglu M. (2012). Energy efficiency classification of agricultural tractors in Turkey based on OECD tests, Energy Education Science and Technology, 28(2), 917–924.Google Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Lavinia Eleonora Galli
    • 1
    Email author
  • Davide Facchinetti
    • 1
  • Domenico Pessina
    • 1
  1. 1.Department of Agricultural and Environmental SciencesUniversità degli Studi di MilanoMilanItaly

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