Emission Treatment towards Cold Start and Back Pressure in Internal Combustion Engine against Performance of Catalytic Converter: A Review

Leman, Abdul Mutalib; Rahman, Fakhrurrazi; Jajuli, Afiqah; Zakaria, Supaat; Feriyanto, Dafit

doi:10.1051/matecconf/20178702021

Cited by 10 publications

(3 citation statements)

References 25 publications

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“…The need to take into account emissions from the cold start phase has been noticed not only in Europe but also worldwide. The authors of the articles [18,26] pointed out the importance of the cold start issue as well as the necessity of further improvement of exhaust after-treatment systems. Whereas, the authors of the publications [8,10,11] suggested that NO x emission should be an issue addressed in subsequent updates of EU regulations.…”

Section: Introductionmentioning

confidence: 99%

Cold start emissions from a gasoline engine in RDE tests at different ambient temperatures

Kurtyka¹,

Pielecha²

2020

Combustion Engines

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The implementation of the 3rd package of the RDE test procedure has extended the test method by considering emissions from a cold start period into the total exhaust emissions from a vehicle. The article presents the research results of exhaust emissions of a vehicle equipped with a gasoline engine. The tests were carried out at two different ambient temperatures, in line with the requirements of the RDE test procedure for passenger cars, meeting the Euro 6d-Temp emissions standard. The obtained results were analyzed, i.e. there were compared the engine and vehicle operating parameters and the values of road exhaust emissions during the cold start at two different ambient temperatures. The summary presents the shares of the cold start phase for each exhaust emission compound in the urban part of the test and the entire RDE test, depending on the ambient temperature (8ºC and 25ºC).

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Section: Introductionmentioning

confidence: 99%

Cold start emissions from a gasoline engine in RDE tests at different ambient temperatures

Kurtyka¹,

Pielecha²

2020

Combustion Engines

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“…The aim of this work is to find a three-way catalytic converter, which, on the one hand, will allow a significant reduction in the concentration of toxic exhaust components starting from the lowest possible temperature of the exhaust downstream from the turbine, and on the other hand, will have low exhaust gas flow resistance. Increasing the flow resistance raises backpressure of gases in the exhaust system, which in turn increases the pumping losses, reducing the effect of energy recovery in the cylinders of the additional expansion of the five-stroke engine [27].…”

Section: Research Problem and Aim Of Workmentioning

confidence: 99%

A three-way catalyst system for a five-stroke engine

Noga¹

2019

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This paper presents the results of research on the development of an exhaust gas aftertreatment system for a turbocharged five-stroke engine. This engine was designed and constructed at Cracow University of Technology. A characteristic feature of the five-stroke engine is the use of an additional expansion process to increase overall efficiency. A challenge for a catalytic converter is the fact that it has a low exhaust gas temperature. Two three-way catalytic converters were tested-one with a ceramic support and the second with a metal support. The results of the tests showed that the reactor with a ceramic support obtains an acceptable conversion efficiency starting with an exhaust gas temperature of 280°C. For the metal-support reactor, a few percent increase in torque and a decrease in the brake-specific fuel consumption of the engine was obtained; however, the converter itself did not show signs of operation even with an exhaust gas temperature of over 380°C. The performed analyses highlighted directions of further development works in this area.

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“…With the rapid development of China's economy, people's living standards are also improving, and private cars have gradually entered the family. However, traditional fossil fuel resources such as oil are limited, and their combustion will emit greenhouse gases (GHG) and harmful substances [1,2] and affect the environment and climate [3] . A series of problems, such as energy shortage, environmental pollution and climate warming, brought by the traditional petrol-powered vehicles with oil or diesel as the main fuel, have also become the public concerns [4] .…”

Section: Introductionmentioning

confidence: 99%

A review on thermal management of lithium-ion batteries for electric vehicles

Zhang

Zhao

Luo

et al. 2022

Energy

511

136

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In recent years, energy and environmental issues have become more and more prominent, and electric vehicles powered by lithium-ion battery have shown great potential and advantages in alleviating these issues. Compared with other batteries, lithium-ion batteries have the advantages of high specific energy, high energy density, long endurance, low self-discharge and long shelf life. However, temperature of the battery has become one of the most important parameters to be handled properly for the development and propagation of lithium-ion battery electric vehicles. Both the higher and lower temperature environments will seriously affect the battery capacity and the service life. Under high temperature environment, lithium-ion batteries may produce thermal runaway, resulting in short circuit, combustion, explosion and other safety problems. Lithium dendrites may appear in lithium-ion batteries at low temperature, causing short circuit, failure to start and other operational faults. In this paper, the used thermal management methods of lithium-ion batteries are introduced and their advantages and disadvantages are discussed and compared. At the same time, the prospect of future development is put forward.

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Emission Treatment towards Cold Start and Back Pressure in Internal Combustion Engine against Performance of Catalytic Converter: A Review

Cited by 10 publications

References 25 publications

Cold start emissions from a gasoline engine in RDE tests at different ambient temperatures

Cold start emissions from a gasoline engine in RDE tests at different ambient temperatures

A three-way catalyst system for a five-stroke engine

A review on thermal management of lithium-ion batteries for electric vehicles

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