Consumo de combustível em diferentes sistemas de preparo periódico realizados antes e depois da operação de subsolagem

Salvador, Nilson; Mion, Renildo Luiz; Benez, Sérgio Hugo

doi:10.1590/s1413-70542009000300029

Cited by 15 publications

(12 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…30 40 50 60 70 80 Although there was a linear increase of fuel volume consumed per hour by the engine, the power developed in the tractor drawbar also increased, explaining the lower specific fuel consumption (ACUÑA et al, 1995). This power, according to SALVADOR et al (2009), is a function of the traction force and travel speed.…”

Section: Specific Fuel Consumptionmentioning

confidence: 99%

Fuel consumption efficiency of an agricultural tractor equipped with continuously variable transmission

et al. 2017

View full text Add to dashboard Cite

The correct choice of modern power transmissions can help farmers decrease production costs. The following research aimed to assess fuel consumption efficiency of an agricultural tractor equipped with continuously variable transmission, at different travel speed and load levels applied on the tractor drawbar. Standard procedure has been applied considering six load levels (30; 40; 50; 60; 70 and 80% of Q0) by means of breaking with a dynamometer car instrumented in a concrete test track, at three travel speeds (5.16; 7.29 and 10.48km h-1). Throughout the experiment, engine speed, traction force and hourly fuel consumption were monitored. The results indicated that there was an average increase of 2.67; 2.82; and 2.61L h-1 in the hourly fuel consumption for each 10% increase in the load level on the tractor, for travel speed of 5.16; 7.29 and 10.48km h-1, respectively. In general, the specific fuel consumption of the tractor decreased as the load levels and the travel speeds were increased.

show abstract

Section: Specific Fuel Consumptionmentioning

confidence: 99%

Fuel consumption efficiency of an agricultural tractor equipped with continuously variable transmission

et al. 2017

View full text Add to dashboard Cite

show abstract

“…According to SALVADOR et al (2009), the soil surface and the operations to be performed interfere with the fuel consumption of a tractor. Regardless of soil type and activity to be performed, it should always be aware of the characteristics of the tires, because the wheels of the tractor has the function of providing support, sustentation, guidance and self-locomotion, and are responsible for generating tractive effort (MIALHE, 1996).…”

Section: Introductionmentioning

confidence: 99%

Fuel consumption of a tractor in function of wear, of ballasting and tire inflation pressure

et al. 2012

View full text Add to dashboard Cite

When using appropriate inflation pressures and load capacity (ballast), it may obtain a higher yield and prolongation of the life of the tire, besides it may minimize the problems of loss of traction, increased slippage and fuel consumption. This study aimed to evaluate the fuel consumption of a tractor operating with new and worn tires in three conditions of ballasting and three inflation pressures, when driving on compacted soil with vegetation cover. The experiment was conducted at the experimental unit from the Department of Animal Science, Federal University of Lavras, state of Minas Gerais, Brazil, in an agricultural soil compacted by cattle trampling and with vegetation cover. It was used a tractor 4x2 with front wheel assist, of a 65.62 kW engine power. The tires were of R1 type, diagonal (front: 12.4 to 24; and rear: 18.4 to 30), the average height of the clutches of the new tires were 0.3 and 0.35 m for front and rear tires, respectively, and for the worn tires were 0.018 and 0.0045 m, for the front and the rear tires, respectively. The results showed advantages for the tractor equipped with new tires.KEYWORDS: agricultural machinery, tractor test, tractive force. CONSUMO DE COMBUSTÍVEL DE UM TRATOR EM FUNÇÃO DO DESGASTE, DA LASTRAGEM E PRESSÃO DE INFLAÇÃO DOS PNEUSRESUMO: Ao se utilizar pressão de inflação e a capacidade de carga (lastro) adequadas, pode-se obter um rendimento maior e um prolongamento da vida útil do pneu; além disso, minimizam-se os problemas de perda de tração, aumento de patinhagem e consumo de combustível. O presente trabalho teve como objetivo avaliar o consumo de combustível de um trator agrícola operando com pneus novos e desgastados, em três condições de lastragem e três pressões de inflação, ao trafegar sobre solo compactado com cobertura vegetal. O experimento foi realizado na unidade experimental do Departamento de Zootecnia da Universidade Federal de Lavras, Lavras-MG, em um solo compactado pelo pisoteio de bovinos e com cobertura vegetal. Utilizou-se um trator 4x2 TDA, com potência de 65,62 kW no motor. Os pneus foram do tipo R1, diagonal (dianteiros: 12,4-24; traseiros: 18,4-30), sendo que a altura média das garras dos pneus novos foi de 0,3 e 0, 35 m para os pneus dianteiros e traseiros, respectivamente, e nos pneus desgastados, 0,018 e 0,0045 m para os pneus dianteiros e traseiros, simultaneamente. Os resultados evidenciaram vantagens para o trator quando equipado com pneus novos.PALAVRAS-CHAVE: máquinas agrícolas, ensaio de trator, força de tração.

show abstract

“…No preparo do solo, as operações de subsolagem e aração profunda são aquelas que demandam maior esforço tratório, dependendo do teor de água no solo. Trabalhos conduzidos por SALVADOR et al (2009) e SERRANO et al (2003, demonstraram que as operações de preparo do solo, podem proporcionar maior desempenho do motor e da eficiência trativa.…”

Section: Resultsunclassified

Condições de tração dos tratores agrícolas fabricados e comercializados no Brasil

Rinaldi

Fernándes²,

Teixeira³

et al. 2016

Revista Brasileira De Tecnologia Aplicada Nas Ciências Agrárias

View full text Add to dashboard Cite

ResumoNo Brasil, atualmente, além de não existir um centro de ensaios obrigatórios, são poucos os trabalhos que visam determinar o desempenho dos tratores agrícolas. Os testes de desempenho dos espécimes são feitos pelos fabricantes e, por não ser exigida a divulgação oficial dos relatórios, os consumidores só dispõem de informações do próprio fabricante. Diante disso, objetivou-se com o presente trabalho avaliar as condições de tração dos tratores agrícolas em relação a quatro faixas de potência e tipo de tração. Para isso, foram analisados de um universo de 191 tratores, os seguintes parâmetros: força de tração máxima estimada na barra de tração (BT) e relação força de tração/peso. Alguns desses parâmetros foram avaliados em diferentes condições de solo e lastragem. Os resultados demonstraram que os modelos de tratores na faixa de potência de 147 kW e tração 4x2 TDA apresentam os melhores valores para força de tração máxima estimada. A força de tração máxima é maior para tratores da faixa de 147 kW, e tração 4x2 TDA.Palavras chave: Desempenho, Máquinas agrícolas, Tração. Traction conditions for agricultural tractors manufactured and marketed in Brazil AbstractIn Brazil today, beyond there is no mandatory testing center, there are few studies aiming to determine the performance of agricultural tractors. Performance tests of the specimens are made by manufacturers, and because the official reports disclosure is not required, consumers have information only from the own manufacturer. Thus, this study aimed to evaluate the performance the conditions tractor of the agricultural tractors with manufactured and/or sold tires in Brazil in relation to power ranges and type of traction. To do so, from 191 agricultural tractors, we calculated the following parameters maximum traction force at DB and relative traction force/weight. Some ofthese parameters were evaluated under different soil and ballast conditions. The results showed that the power range 147 kW and 4x2 TDA traction type present the best values for estimated maximum traction power. It can be concluded that the maximum traction force is higher for the range tractors 147 kW, power over and traction type 4x2 TDA backed.

show abstract

Consumo de combustível em diferentes sistemas de preparo periódico realizados antes e depois da operação de subsolagem

Cited by 15 publications

References 5 publications

Fuel consumption efficiency of an agricultural tractor equipped with continuously variable transmission

Fuel consumption efficiency of an agricultural tractor equipped with continuously variable transmission

Fuel consumption of a tractor in function of wear, of ballasting and tire inflation pressure

Condições de tração dos tratores agrícolas fabricados e comercializados no Brasil

Contact Info

Product

Resources

About