Rating of Agricultural Tractors by Fuel Efficiency

농업용 트랙터의 연료 소비 효율 등급화

  • Kim, Soo-Chul (Seoul National University) ;
  • Kim, Kyeong-Uk (Department of Biosystems and Biomaterial Science and Engineering, and Institute for Agricultural and Life Sciences, Seoul National University)
  • Received : 2009.10.22
  • Accepted : 2010.03.11
  • Published : 2010.04.25


This study was conducted to develop an index of fuel consumption to rate agricultural tractors by their fuel efficiencies. The fuel consumption index consisted of two components: basic and operational indexes. The basic index is to consider an average amount of fuel consumed by engine when it transmits 20 and 100% of the rated power. The operational index is to consider the fuel consumed by tractor for typical field operations: plowing, rotavating, and the remains. The equations and procedures to obtain these indexes were proposed. The method and fuel consumption rate to classify tractors into 5 grades were also proposed. The best 15% of the tractor models were rated as the first grade, 20% as the second grade, 30% as the third grade, 20% as the fourth grade, and 15% as the fifth grade in order of fuel efficiency. Using the fuel consumption index, the classification was conducted on 143 tractor models tested at the National Institute of Agricultural Engineering from 2000 to 2007. The proposed 5-grade system of classification using the fuel consumption index could be used to rate the fuel efficiency of 20-100 kW tractor models produced over past 10 years in Korea.


Supported by : 한국연구재단


  1. Gil-Sierra, J., J. Ortiz-Canavate, V. Gil-Quiros and J. Casanova. 2007. Energy efficiency in agricultural tractors: A methodology for their classification. Applied Engineering in Agriculture 23(2):145-150.
  2. Kim, S. C., K. U. Kim and D. C. Kim. 2010. Modeling of fuel consumption rate for agricultural tractors. Journal of Biosystems Engineering 35(1):1-9. (In Korean)
  3. MKE. 2008. Regulations on Energy Consumption Efficiency and Its Classification for Cars. Notification No. 2008-162. Ministry of Knowledge and Economy, Seoul, Korea. (In Korean)
  4. NACF. 2009. Work Guidelines for Tax-free Fuels. National Agricultural Cooperative Federation, Seoul, Korea. (In Korean)
  5. Nahmgung, M. J. 2001. Load measurement and life prediction for transmission on tractors. Unpublished Doctoral Thesis. Sungkyunkwan University, Suwon, Korea. (In Korean)
  6. NIAE. 2000-2007. Agricultural Machinery Test Report (Tractor). National Institute of Agricultural Engineering, Suwon, Korea. (In Korean)
  7. OECD. 2008. OECD Standard Code 2 for the Official Testing of Agricultural and Forestry Tractor Performance. OECD, Paris, France.
  8. Park, S. H., C. K. Kim, Y. J. Kim, D. H. Im, S. C. Jung, H. J. Kim, J. S. Lee and S. S. Kim. 2009. Load characteristics of tractor PTO power and field operation. Proceedings of the KSAM 2009 Summer Conference 14(2):61-66. (In Korean)
  9. RDA. 2007. Survey Results on Farm Machinery Utilization and Mechanization Ratio of Farm Operations. Korea Gallop, Seoul, Korea. (In Korean)

Cited by

  1. Energy Efficiency Classification of Agricultural Tractors in Korea vol.37, pp.4, 2012,