Testing of Agricultural Tractor Engine using Animal-fats Biodiesel as Fuel

YoungJung, Kim; Lee, Siyoung; Kim, Jong-Goo; Kang, Di; Choi, Honggi

doi:10.5307/jbe.2013.38.3.208

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…Park et al (2010) analyzed the factors affecting fuel consumption of agricultural tractor and found that specific fuel consumption and CO 2 emission increased as throttle engine speed increased but reversely proportional with gear step of tractor, by which fuel consumption and CO 2 emission can be reduced with practicing of "Gear up and Throttle down" technique. Kim et al (2013) evaluated the performances of a tractor diesel engine fueled by three different animal fats biodiesels those produced less exhaust gases of CO 2 , CO, NO X and THC. Janulevicius et al (2013) presented a methodology for determining operational indicators suitable for collection and analysis of information on engine operating modes, fuel consumption and exhaust gas emissions during tractor's operation period.…”

Section: Fuel and Emissionmentioning

confidence: 99%

Research Trends for Performance, Safety, and Comfort Evaluation of Agricultural Tractors: A Review

Kabir¹,

Ryu²,

Chung³

et al. 2014

Journal of Biosystems Engineering

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Background: Significant technological development and changes happened in the tractor industries. Contrariwise, the test procedures of the major standard development organizations (SDO's) remained unchanged or with a little modification over the years, demanding new tractor test standards or improvement of existing ones for tractor performance, safety, and comfort. Purpose: This study focuses on reviewing the research trends regarding performance, safety and comfort evaluation of agricultural tractors. Based on this review, few recommendations were proposed to revise or improve the current test standards. Review: Tractor power take-off power test using the DC electric dynamometer reduced human error in the testing process and increased the accuracy of the test results. GPS signals were used to determine acceleration and converted into torque. High capacity double extended octagonal ring dynamometer has been designed to measure drawbar forces. Numerical optimization methodology has been used to design three-point hitch. Numerous technologies, driving strategies, and transmission characteristics are being considered for reducing emissions of gaseous and particulate pollutants. Engine emission control technology standards need to be revised to meet the exhaust regulations for agricultural tractors. Finite Element Analysis (FEA) program has been used to design Roll-Over Protective Structures (ROPS). Program and methodology has been presented for testing tractor brake systems. Whole-body vibration emission levels have been found to be very dependent upon the nature of field operation performed, and the test track techniques required development/adaptation to improve their suitability during standardized assessment. Emphasizes should be given to improve visibility and thermal environment inside the cab for tractor operator. Tractors need to be evaluated under electromagnetic compatibility test conditions due to large growing of electronic devices. Research trends reviewed in this paper can be considered for possible revision or improvement of tractor performance, safety, and comfort test standards.

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Section: Fuel and Emissionmentioning

confidence: 99%

Research Trends for Performance, Safety, and Comfort Evaluation of Agricultural Tractors: A Review

Kabir¹,

Ryu²,

Chung³

et al. 2014

Journal of Biosystems Engineering

View full text Add to dashboard Cite

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The Effects of Biodiesel on the Performance and Gas Emissions of Farm Tractors’ Engines: A Systematic Review, Meta-Analysis, and Meta-Regression

Akbari,

Piri,

Renzi

et al. 2024

Energies

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The need for the decarbonization of heavy-duty vehicles requires a deep understanding about the effects of biofuels, which represent a viable pathway to cut the emissions in the hard-to-abate sectors, like agricultural tractors. A novel meta-analysis approach can help to thoroughly investigate the effects of biodiesel blends on farm tractor engines in terms of performance and emissions. Studies were identified using the main keywords related to internal combustion engines in prominent scientific databases. Standardized mean differences were calculated for each study to evaluate engine performance and gas emissions. Mixed-effects regression models were developed to investigate performance and environmental pollution changes over different biodiesel blending ratios, biodiesel sources, and engine types. The analysis revealed significant effects of biodiesel blending ratio on decreasing torque [−13.0%, CI 95% (6.7%–19.3%); I2 = 97.67; p = 0.000; Q = 129.94], engine power [−15.0%, CI 95% (10.0–20.0%); I2 = 54.82; p = 0.000; Q = 101.81], CO2 emissions [−24.1%(15.0–32.0%); I2 = 0.198; p = 0.000; Q = 20.04], and CO emissions [−17.5%, CI 95% (16.0–18.0%); I2 = 98.62; p = 0.000; Q = 97.69], while increasing specific fuel consumption [+5.2%, CI 95% (1.0–9.0%); I2 = 95.94; p = 0.000; Q = 129.74] and NO emissions [+11.0%, CI 95% (6.0–15.0%); I2 = 98.51; p = 0.000; Q = 157.56]. The same analysis did not show any influence of the sources of biodiesel and the engine type. Finally, meta-regression found a significant positive association between increasing ratios of biodiesels and decreasing torque, engine power, CO and CO2 emissions, and increasing fuel consumption and NO emissions in terms of linear equations. Although through these equations it is not possible to individuate an optimal range of blending ratios able to lower the emissions and not affect the engine parameters, the range from 9.1% to 13.0% of biodiesel is a good tradeoff. Within it, the only decrease in engine performance is in charge of the power, however contained within 4%, while CO and CO2 emissions are reduced (respectively by 0.0%/−2.8% and −3.6%/−6.0%) without using any specific pollutant abatement systems.

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Testing of Agricultural Tractor Engine using Animal-fats Biodiesel as Fuel

Cited by 2 publications

References 5 publications

Research Trends for Performance, Safety, and Comfort Evaluation of Agricultural Tractors: A Review

Research Trends for Performance, Safety, and Comfort Evaluation of Agricultural Tractors: A Review

The Effects of Biodiesel on the Performance and Gas Emissions of Farm Tractors’ Engines: A Systematic Review, Meta-Analysis, and Meta-Regression

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