Experimental Study of the Effect of Fuel Type on the Emitted Emissions from SIE at Idle Period

Chaichan, Miqdam T.; Abaas, Khalil Ibrahim; Mohammed, Bashar A

doi:10.22153/kej.2017.11.001

Cited by 6 publications

(3 citation statements)

References 5 publications

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“…2019) investigated the environmental impact of vehicular idling on emissions and found that significant emissions from idling vehicles account for the huge part of the total emissions from the transport sector, particularly at the signalized intersections during peak hour in urban areas [9][10][11]. Chaichan (2014) reported that CO 2 concentrations increased with idle time and engine speed from a diesel engine, and Kumar et al (2015) specifically noted that the total emissions amounted to 2398.055 mg/m 3 of hydrocarbons, 1087.068 mg/m 3 of NOx, and 10,612.612 mg/m 3 of carbon monoxide daily during vehicle idling across 600 intersections in Delhi, India [12,13].…”

Section: Identification Of Traffic Signal Informationmentioning

confidence: 99%

The Environmental Benefits of an Automatic Idling Control System of Connected and Autonomous Vehicles (CAVs)

Kim

2024

Applied Sciences

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The transportation sector is regarded as the main culprit in greenhouse gas emission in the urban network, particularly idling vehicles waiting at signalized intersections. Although autonomous vehicles can be a promising technology to tackle vehicle idling, their environmental benefits receive little attention compared with their safety and mobility issues. This study investigated the environmental benefits of autonomous vehicles equipped with an automatic idling control function based on the queue discharge time and traffic signal information transmitted from the traffic signal controller via V2I communication using microscopic mobility and emission simulation models, VISSIM and MOVES, in Haeundae-gu in Busan, Korea. This study found that the function contributes to a significant reduction in CO2 emissions by 23.6% for all-inclusive emission and 94.3% for idling emission, respectively. Moreover, total reduced idling time accounts for 47.6% of the total travel time and 94.3% of the total idling time, respectively. Consequently, the autonomous vehicles equipped with automatic vehicle idling control function under C-ITS can play an important role in reducing greenhouse gas emissions and fuel consumption as well in the urban network.

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Section: Identification Of Traffic Signal Informationmentioning

confidence: 99%

The Environmental Benefits of an Automatic Idling Control System of Connected and Autonomous Vehicles (CAVs)

Kim

2024

Applied Sciences

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“…Reference [83] chose to study several types of fuel and their effects on emissions emitted during the idle period. The researchers selected three types of available fuels in Iraq: standard octane gasoline 82, excellent octane 92, M20 (20% methanol and 80% gasoline).…”

Section: B the Addition Of Liquid Fuels To Gasolinementioning

confidence: 99%

Alternative Fuel Use in Iraq: A way to Reduce Air Pollution

Kadhem

Reza

Ahmed

2017

EJENG

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The Iraq air is polluted highly by pollutants emitted from automobiles and trucks as well as power stations. This pollution resource is well known it is the burning of oil and natural gas. Iraq has been subjected to a series of wars and economic blockade for more than 40 continuing years. The war and blockade conditions have affected all the country's infrastructure causing huge deterioration in the services provided to Iraqi citizens. The Iraqi refineries as well have been subjected to major destruction and reconstruction several times. Unfortunately, the reconstruction in Iraq conditions was not in appropriate level, and for that reason we find the Iraqi gasoline and diesel are one of the worst fuels in the world. All reports demonstrated that the Iraqi gasoline contains high levels of sulfur (500ppm), as well as high levels of lead compounds to increase octane. The Iraqi diesel contains sulfur up to 1 to 2.5% of its weight which makes it the worst globally.In Iraq there are many alternative fuels that generate better engine performance and emit lower exhaust pollutants while improving fuel consumption. This paper reviews some of the Iraqi experimental work during the past ten years and the available results about using gaseous fuels such as natural gas, liquefied petroleum gas and hydrogen. In addition, the study focus on the use of some additives to gasoline and diesel, such as alcohols and biofuels to reduce the effects of sulfur associated with these types of fuel. The Iraqi research works have found many solutions and alternative methods of operation to eliminate the various engines emitted pollutants. The role has now come to the decision makers to legislate the laws and decisions necessary to switch to new types of alternative fuels.

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“…However, the efficiency of DOC, SCR, and DPF is closely related to temperature [15,16]. The emission is poor [17,18] at a low exhaust temperature [19,20], and DOC and SCR are at a low efficiency level [21,22]. The urea stops injecting when the temperature is below 200 • C [23,24].…”

Section: Introductionmentioning

confidence: 99%

A Review of Thermal Energy Management of Diesel Exhaust after-Treatment Systems Technology and Efficiency Enhancement Approaches

Wu,

Feng,

et al. 2024

Energies

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The DOC (diesel oxidation catalyst), DPF (diesel particulate filter), SCR (selective catalytic reduction), and ASC (ammonia slip catalyst) are widely used in diesel exhaust after-treatment systems. The thermal management of after-treatment systems using DOC, DPF, SCR, and ASC were investigated to improve the efficiency of these devices. This paper aims to identify the challenges of this topic and seek novel methods to control the temperature. Insulation methods and catalysts decrease the energy required for thermal management, which improves the efficiency of thermal management. Thermal insulation decreases the heat loss of the exhaust gas, which can reduce the after-treatment light-off time. The DOC light-off time was reduced by 75% under adiabatic conditions. A 400 W microwave can heat the DPF to the soot oxidation temperature of 873 K at a regeneration time of 150 s. An SCR burner can decrease NOx emissions by 93.5%. Electrically heated catalysts can decrease CO, HC, and NOx emissions by 80%, 80%, and 66%, respectively. Phase-change materials can control the SCR temperature with a two-thirds reduction in NOx emissions. Pt-Pd application in the catalyst can decrease the CO light-off temperature to 113 °C. Approaches of catalysts can enhance the efficiency of the after-treatment systems and reduce the energy consumption of thermal management.

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Experimental Study of the Effect of Fuel Type on the Emitted Emissions from SIE at Idle Period

Cited by 6 publications

References 5 publications

The Environmental Benefits of an Automatic Idling Control System of Connected and Autonomous Vehicles (CAVs)

The Environmental Benefits of an Automatic Idling Control System of Connected and Autonomous Vehicles (CAVs)

Alternative Fuel Use in Iraq: A way to Reduce Air Pollution

A Review of Thermal Energy Management of Diesel Exhaust after-Treatment Systems Technology and Efficiency Enhancement Approaches

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