Effect of heating the catalytic converter on emission characteristic of gasoline automotive vehicles

Tyagi, R. K.; Ranjan, Ravi

doi:10.1080/01430750.2013.853205

Cited by 17 publications

(3 citation statements)

References 9 publications

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“…Similar studies are performed by other groups. Tyagi R. K. et al [21] test an electrically heated exhaust cleaning system utilizing a three-cylinder gasoline engine. The findings demonstrate that electrical heating considerably increases the TWC purifying efficiency, lowering CO, THC, and NOx emissions by around 70%, 50%, and 50%, respectively.…”

Section: Application To Gasoline Engine Vehiclesmentioning

confidence: 99%

Applications of Electric Heating Technology in Vehicle Exhaust Pollution Control

Li,

Xiao,

Wang

et al. 2024

Processes

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Motor vehicle exhaust is an important cause of atmospheric pollution. Nowadays, mainstream exhaust emission aftertreatment technologies, such as TWC, DOC, SCR, and DPF, usually require sufficient temperature to perform good purification or maintain normal working conditions. Compared with exhaust gas heating technologies such as engine enrichment and fuel injection, electric heating technology can quickly increase the temperature of exhaust gas aftertreatment devices without adverse effects on engine operating conditions. This article introduces the research and progress of electric heating technology combined with traditional aftertreatment devices on major types of vehicles, such as gasoline vehicles, diesel vehicles, motorcycles, and hybrid vehicles, to improve exhaust purification efficiency and its accompanying fuel consumption impact. In addition, the common structure and characteristics of electric heaters, as well as the current status and development trend of electric heating unit technologies such as electric heating power supply are introduced.

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Section: Application To Gasoline Engine Vehiclesmentioning

confidence: 99%

Applications of Electric Heating Technology in Vehicle Exhaust Pollution Control

Li,

Xiao,

Wang

et al. 2024

Processes

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“…It was concluded that shortening the exhaust pipe increased the inlet temperature, and shortening the light-off time with a retarded ignition timing and increased idle speed had positive effects on reducing the HC and CO emissions' light-off time. Tyagi and Ranjan (2015) studied a preheated catalytic converter. Experimentally, it was observed that the air pollutant exhaust emissions were reduced by preheating the catalytic converter.…”

Section: Introductionmentioning

confidence: 99%

Soğuk Çalişma Ve Rölanti̇ Koşullarinda Ön Isitici Yükünün Ve Konumunun Katali̇ti̇k Konvertör Veri̇mli̇li̇ği̇ne Etki̇leri̇

Dinler¹,

Aktas²,

Taskin³

et al. 2021

Isı Bilimi Ve Tekniği Dergisi

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Exhaust emissions are significant pollutants that affect urban lifestyles. There are several regulations related to the exhaust emissions of both gasoline and diesel engines. In this study, the effects of a controlled heating of the exhaust line before the catalytic converter on the converter efficiency are experimentally investigated. Experiments were conducted based on either discrete or cold start conditions. For discrete conditions, the engine was operated until it reached normal and steady state operating conditions. Then, the engine was stopped until the catalytic converter surface temperature reached the ambient temperature. The experiments were first started without additional heating and then continued with different heating loads. In the second stage, the catalytic converter behavior and conversion efficiency under cold start conditions were investigated. The exhaust gas after the exhaust manifold was preheated with different heating loads for the first 150 seconds after the start of the engine; however, the exhaust line was heated 15 s before starting the engine. The effects of the location, length and heat loads of the electrical resistances on the catalytic converter behavior were investigated. After all of the experiments, it was concluded that with the appropriate location and heating loads, for discrete operating conditions, the hydrocarbon (HC) and carbon monoxide (CO) emission conversion efficiencies reached nearly 100 % after 50 s of starting the engine. For cold start conditions, the hydrocarbon (HC) and carbon monoxide (CO) emission conversion efficiencies reached 35 % and 80 %, respectively.

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“…Various tests were performed by the heating of catalytic converter to eliminate in the delay period of temperature gain from 0°C to 750°C. It was perceived after the experimental investigation that exhaust emissions such as HC, CO, and NOX reduced significantly with the reduction in delay time [7]. The spark engine catalytic converter conversion efficiency was studied for new, old and without a converter.…”

Section: Introductionmentioning

confidence: 99%

Design and Development of GRF Aqua Silencer by E-Glass Composite for Reduction of Noise and Particulate Matter in Automotive Diesel Engine

Sinha

Ranjan

Tyagi

2018

IJAME

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As per the recent statistical data, the consumption of fuel has increased from 1965 to 2012 at a very high rate. Earlier, we used to relay mostly on coal for running steam engines, and with the advancement of technology, this switched over to gasoline, diesel, natural gas and alternative fuels. Most of the emission coming from automotive engines was the main contributor to air pollution. An Aqua silencer composed of E glass-based composite was introduced to avoid the release of such gases directly into the atmosphere from diesel engines. It was manufactured using core moulding and vacuum bagging technology and was fitted to the exhaust pipe of the diesel engine to treat the toxic gasses before releasing to the atmosphere. Other than reducing the regulated emission, it also reduced particulate matter significantly. The particulate matter was reduced using an activated charcoal layer. The noise and particulate level were found to be less by 40 and 93% respectively when compared with the conventional silencer. Besides this, it has ease of installation. The current paper discussed the utilisation of this innovative mechanism in automobiles and its contribution to various fields such as refineries and chemical processing units.

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Effect of heating the catalytic converter on emission characteristic of gasoline automotive vehicles

Cited by 17 publications

References 9 publications

Applications of Electric Heating Technology in Vehicle Exhaust Pollution Control

Applications of Electric Heating Technology in Vehicle Exhaust Pollution Control

Soğuk Çalişma Ve Rölanti̇ Koşullarinda Ön Isitici Yükünün Ve Konumunun Katali̇ti̇k Konvertör Veri̇mli̇li̇ği̇ne Etki̇leri̇

Design and Development of GRF Aqua Silencer by E-Glass Composite for Reduction of Noise and Particulate Matter in Automotive Diesel Engine

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