Pollutant Emissions from Starting a Common Rail Diesel Engine Fueled with Different Biodiesel Fuels

Cárdenas, María D.; Gómez, Arántzazu; Armas, Octavio

doi:10.1061/(asce)ey.1943-7897.0000328

Cited by 9 publications

(3 citation statements)

References 26 publications

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“…Moreover, low ambient temperatures during start process have a notable influence on the combustion process. [21][22][23] Research on cold-start in CI engines have shown that emissions tend to increase when ambient temperature diminishes. 6,24 Also, low ambient temperature leads to enhance incomplete combustion.…”

Section: Introductionmentioning

confidence: 99%

Analysis of temperature and altitude effects on the Global Energy Balance during WLTC

Payri

Martín

Arnau

et al. 2021

International Journal of Engine Research

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In this work, the Global Energy Balance (GEB) of a 1.6 L compression ignition engine is analyzed during WLTC using a combination of experimental measurements and simulations, by means of a Virtual Engine. The energy split considers all the relevant energy terms at two starting temperatures (20°C and 7°C) and two altitudes (0 and 1000 m). It is shown that reducing ambient temperature from 20°C to −7°C decreases brake efficiency by 1% and increases fuel consumption by 4%, mainly because of the higher friction due to the higher oil viscosity, while the effect of increasing altitude 1000 m decreases brake efficiency by 0.8% and increases fuel consumption by 2.5% in the WLTC mainly due to the change in pumping. In addition, GEB shows that ambient temperature is affecting exhaust enthalpy by 4.5%, heat rejection to coolant by 2%, and heat accumulated in the block by 2.5%, while altitude does not show any remarkable variations other than pumping and break power.

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Section: Introductionmentioning

confidence: 99%

Analysis of temperature and altitude effects on the Global Energy Balance during WLTC

Payri

Martín

Arnau

et al. 2021

International Journal of Engine Research

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“…Therefore, fuel film compensation is required for the actual fuel mass that flows into the engine cylinder. If the fuel film compensation is too rich, the mass ratio of fuel to air will be quite high, which will result in poor fuel economy and increased emissions (Kousoulidou et al , 2013; Cárdenas et al , 2015). Meanwhile, it is an effective method to preheat the engine cylinders with glow plugs (Hooper, 2017a, 2017b).…”

Section: Introductionmentioning

confidence: 99%

Study of low load performance on a two-stroke direct injection spark ignition aero-piston engine fuelled with diesel

Liu

Wei

2020

AEAT

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Purpose The purpose of this paper is to investigate power performance, economy and hydrocarbons (HC)/carbon monoxide (CO) emissions of diesel fuel on a two-stoke direct injection (DI) spark ignition (SI) engine. Design/methodology/approach Experimental study was carried out on a two-stroke SI diesel-fuelled engine with air-assisted direct injection, whose power performance and HC/CO emissions characteristics under low-load conditions were analysed according to the effects of ignition energy, ignition advance angle (IAA), injection timing angle and excess-air-ratio. Findings The results indicate that, for the throttle position of 10%, a large IAA with adequate ignition energy effectively increases the power and decrease the HC emission. The optimal injection timing angle for power and fuel consumption is 60° crank angle (CA) before top dead centre (BTDC). Lean mixture improves the power performance with the HC/CO emissions greatly reduced. At the throttle position of 20%, the optimal IAA is 30°CA BTDC. The adequate ignition energy slightly improves the power output and greatly decreases HC/CO emissions. Advancing the injection timing improves the power and fuel consumption but should not exceed the exhaust port closing timing in case of scavenging losses. Burning stoichiometric mixture achieves maximum power, whereas burning lean mixture obviously reduces the fuel consumption and the HC/CO emissions. Practical implications Gasoline has a low flash point, a high-saturated vapour pressure and relatively high volatility, and it is a potential hazard near a naked flame at room temperature, which can create significant security risks for its storage, transport and use. The authors adopt a low volatility diesel fuel for all vehicles and equipment to minimise the number of different devices using various fuels and improve the potential military application safety. Originality/value Under low-load conditions, the two stroke port-injected SI engine performance of burning heavy fuels including diesel or kerosene was shown to be worse than those of gasoline. The authors have tried to use the DI method to improve the performance of the diesel-fuelled engine in starting and low-load conditions.

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“…The start-up performance and emissions of different injection parameters [5][6][7][8][9], speeds [10,11], temperatures [12][13][14][15], and kinds of fuels [16][17][18][19] have been published by researches all over the world. Prof. Yunshan Ge from the Beijing Institute of Technology has researched combustion characteristics and brake thermal efficiency of heavy-duty diesel engines fueled with diesel and biodiesel at high altitudes.…”

Section: Introductionmentioning

confidence: 99%

The Emission Characteristics of a Diesel Engine During Start-Up Process at Different Altitudes

Fang

Lou

et al. 2019

Energies

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With increasingly stringent emission regulations, the cold start emissions have become more important than ever. Using a low compression ratio is a feasible way to improve a heavy-duty engine’s efficiency and emissions. However, cold start performance restricts the development of this technology, especially at high altitudes. In response, we conducted a study of the emissions of a heavy-duty low-compression-ratio diesel engine during start-up process at different altitudes. A plateau simulation system controlled the inlet and exhaust pressure to create altitude environments of 0 m, 1000 m, 2000 m, 3000 m, 3750 m and 4500 m. The gas, particulate and volatile organic compound (VOC) emissions were analyzed with speed and cycle during the start-up process. The results indicated that cold start performance and combustion characteristics became worse as altitudes increased. The gas and particulate emissions of carbon monoxide (CO), carbon dioxide (CO2), total hydrocarbon (THC) and nitrous oxide (NOX) almost all increased as the engine speed and altitude increased, and was much higher than in idle conditions. The PN and PM emissions in each particle diameter also increased as the altitude increased, which was the same as the nucleation mode and the accumulation mode particles. VOC emissions were also measured, which increased during the start-up process as altitudes increased.

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Pollutant Emissions from Starting a Common Rail Diesel Engine Fueled with Different Biodiesel Fuels

Cited by 9 publications

References 26 publications

Analysis of temperature and altitude effects on the Global Energy Balance during WLTC

Analysis of temperature and altitude effects on the Global Energy Balance during WLTC

Study of low load performance on a two-stroke direct injection spark ignition aero-piston engine fuelled with diesel

The Emission Characteristics of a Diesel Engine During Start-Up Process at Different Altitudes

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