Modelling of Non-Road Transient Cycle

Kotus, Martin; Pexa, Martin; Kubín, K.

doi:10.5513/jcea01/14.4.1344

Cited by 2 publications

(1 citation statement)

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“… NRSC -Non Road Stationary Cycle, is the name of ISO 8178 homologation stationary test cycle used for emission certification and/or type approval testing for non-road engine applications. The NRSC starts with hot engine conditions and represents a sequence of several steady-state modes with different weighting factors [7][8][9][10].…”

Section: Test Methodsmentioning

confidence: 99%

Methodology of diesel particulate filter testing on test bed for non-road engine application

Sala¹,

Kołek²,

Konior³

2021

Combustion Engines

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This paper describes the methodology and test results of diesel particulate filter (DPF) functional testing performed on non-road compression ignition engine installed on test bed. The scope of work included testing of various DPF regeneration strategies, backpressure and balance point tests and emission performance evaluation during a legislative test cycles. The aim of this study was to observe and investigate the influence of exhaust gas parameters on DPF functionality in terms of soot loading, type and duration of the regeneration and emission performance. Under investigation was also the capability of soot burning rate. The DPF sample under test was part of the complete exhaust aftertreatment system (ATS) which consisted of: a diesel oxidation catalyst (DOC), a DPF and a selective catalytic reduction system (SCR). Testing was carried out on a heavy-duty diesel engine installed on a test stand with a dynamic dynamometer and equipped with an emission bench. The test program allowed to assess the engine matching to exhaust aftertreatment system with regard to emissions compliance, in-service operation and necessary engine control unit (ECU) calibration works. The results show the influence of the DPF regeneration strategy on its duration and on the soot mass burn rate. Passive DPF regeneration was a favorable mode of DPF cleaning, due to lack of fuel penalty and lower aging impact on the entire ATS. Optimization of soot flow rate, exhaust gas temperature and the chemistry of the DOC/DPF was further recommended to ensure the long-term durability of the entire system.

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Section: Test Methodsmentioning

confidence: 99%

Methodology of diesel particulate filter testing on test bed for non-road engine application

Sala¹,

Kołek²,

Konior³

2021

Combustion Engines

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Determination of the Trajectory of Curvilinear Motion of Front Steering Wheels Driven Tractor

Dovzhyk

Tatyanchenko

Solarov

et al. 2019

Scientia Agriculturae Bohemica

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The issue of designing the machine tractor movement trajectory is relevant today because its optimization significantly reduces fuel consumption and thus the transport costs. Proper choice of the energy machine and agricultural machinery with economy consumption of fuel and lubricants is also crucial. Recently, the problem has received scant attention in scientific literature. Therefore, this study analytically determines the trajectory of turning the tractor with front steering wheels and attempts to describe the curvilinear trajectory of a four-wheeled tractor using parametric equations in Cartesian coordinates. Its outcomes have a number of important implications for future practice; they are applicable e.g. in planning curved trajectories when cornering the tractor during field processing or in fuel and time consumption predictions for certain operations.

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Modelling of Non-Road Transient Cycle

Cited by 2 publications

References 0 publications

Methodology of diesel particulate filter testing on test bed for non-road engine application

Methodology of diesel particulate filter testing on test bed for non-road engine application

Determination of the Trajectory of Curvilinear Motion of Front Steering Wheels Driven Tractor

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