The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON HEAT AND MASS TRANSFER
Transactions ID Number: 53-769
Full Name: Sekaran Muthukumarasamy
Position: Professor
Age: ON
Sex: Male
Address: VelTech Dr RR & Dr SR Technical University, 42, Avadi Veltech Road, Avadi, Chennai 600052,
Country: INDIA
Tel: 9840105664
Tel prefix: +91
Fax:
E-mail address: sekaran.muthu@gmail.com
Other E-mails: sheik.mk@gmail.com
Title of the Paper: SI ENGINE CSEAS (COLD-START EMISSION ADSORBER SYSTEM) FOR REDUCING COLD START EMISSIONS_WSEAS
Authors as they appear in the Paper: Wing Commander Sekaran Muthukumarasamy, Dr.S.Mohanamurugan
Email addresses of all the authors: sekaran.muthu@gmail.com,sivallakshmi@yahoo.co.uk
Number of paper pages: 11
Abstract: Under normal operating conditions, catalytic converters appear to be the most effective means of reducing air pollution from SI engines. The conversion efficiency, however, declines very steeply for temperatures below about 350 °C and is practically zero during the starting and warming-up period. Improving the conversion efficiency under these conditions is important, particularly in large cities, where the number of starting per vehicle per day tends to be high. Among the other solutions are preheating of the catalyst electrically, warming up of the catalyst in an external combustion chamber, installation of an auxiliary small-capacity catalytic converter, and employment of an adsorbing unit between two catalysts. Although these methods are quite effective, their disadvantage lies in the fact that they require an external energy source, an additional component (a control unit) or a three-stage catalyst. An Cold-Start Emissions Adsorber System (CSEAS) for reducing !
cold-start emission (HC,NOx and CO) have been developed combining existing catalyst technologies with a zeolite based Adsorber. The series flow in-line concept offers a passive and simplified alternative to other technologies by incorporating one additional existing converter with additional valving, purging lines and secondary air. Important technical issues to be resolved for practical use of this CSEAS are, 1. The ability to absorb a wide range of HC, NOx and CO in the exhaust gas. 2. The temperature difference between emissions desorption from the Adsorber and activation desorbed emission. The CSEAS reduced up to 100% of cold-start emissions beyond the three-way catalyst only base line system. The in-line CSEAS could be one of the potential technologies to meet EURO-V and future regulations without the need for ancillary electrically and its associated costs.
Keywords: Cold Start Emission, CSEAS, Zeolite, catalytic converter, emission reduction, start up
EXTENSION of the file: .doc
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