Developments in New Foil Structures for Metallic Substrates (Catalytic Converters) and Their Applications on 2/3 Wheeled Vehicles

Ghosh, B.; Dias, Chris; Waje, Shivraj; Rasal, H. D.; Reck, Alfred

doi:10.4271/2005-26-025

“…Since CNG operation was in open loop, optimization of fuel flow has been optimized on max torque point in order to get optimum operating lambda and best power which has also enable stability in idle operation of the engine [12] . It was decided to map the engine from 1600-3600 rpm, at Engine full throttle performance in CNG was found to be better then diesel engine performance which is shown in Fig.…”

Section: Optimization Of Fuel Flowmentioning

confidence: 99%

Development of Dual Fuel Single Cylinder Natural Gas Engine an Analysis and Experimental Investigation for Performance and Emission

Kaleemuddin¹

2009

American Journal of Applied Sciences

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The present study reports the experimental investigations carried and upgradation of 395 cc air cooled engine to dual fuel (CNG/Gasoline) application. The original 395 cc direct injection naturally aspirated, air cooled diesel engine was first converted to run on Gasoline by addition of electronic ignition system and reduction in compression ratio to suit both gasoline and CNG application. CFX software has been employed to calculate and improve the cooling capacity of engine with the use of CNG. Materials of major engine components were reviewed to suit CNG application. The engine was subsequently tuned with dual multi-mapped ignition timing for bi-fuel stoichiometric operation on engine dynamometer and then fitted on a 3-Wheeler vehicle. The vehicle was optimized on a chassis dynamometer to meet the proposed Bharat Stage-III norms. The engine has passed current BS-II emission norms with 48% margin in CO emission and 76% margin in NMHC (Non-Methane Hydrocarbons) and Extensive trials were conducted on engine and vehicle to optimize with CNG kit and minimum loaded three way cat-con to finally to met proposed BS-III norms

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“…Since CNG operation was in open loop, optimization of fuel flow has been optimized on max torque point in order to get optimum operating lambda and best power which has also enable stability in idle operation of the engine [12] . It was decided to map the engine from 1600-3600 rpm, at Engine parameters were also recorded for power, bsfc, exhaust temperature and back pressure with different ignition timing to achieve best fuel consumption.…”

Section: Optimization Of Fuel Flowmentioning

confidence: 99%

Development of Dual Fuel Single Cylinder Natural Gas Engine an Analysis and Experimental Investigation for Performance and Emission

Kaleemuddi¹,

Rao²

2009

American J. of Applied Sciences

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The present study reports the experimental investigations carried and upgradation of 395 cc air cooled engine to dual fuel (CNG/Gasoline) application. The original 395 cc direct injection naturally aspirated, air cooled diesel engine was first converted to run on Gasoline by addition of electronic ignition system and reduction in compression ratio to suit both gasoline and CNG application. CFX software has been employed to calculate and improve the cooling capacity of engine with the use of CNG. Materials of major engine components were reviewed to suit CNG application. The engine was subsequently tuned with dual multi-mapped ignition timing for bi-fuel stoichiometric operation on engine dynamometer and then fitted on a 3-Wheeler vehicle. The vehicle was optimized on a chassis dynamometer to meet the proposed Bharat Stage-III norms. The engine has passed current BS-II emission norms with 48% margin in CO emission and 76% margin in NMHC (Non-Methane Hydrocarbons) and Extensive trials were conducted on engine and vehicle to optimize with CNG kit and minimum loaded three way cat-con to finally to met proposed BS-III norms.

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Innovative Metallic Substrate Technology to Meet Future Emission Limits

VAN EICKELS,

DUMMANN,

PACE

et al. 2007

SAE Technical Paper Series

0

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<div class="htmlview paragraph">Exhaust after-treatment systems will have to become increasingly efficient in order to comply with the strict emission limits that will apply in the European Union and worldwide in future. Moreover, space constraints, weight and low pressure drop are just some of the issues that have to be addressed by an EU III-compliant catalytic system. The development of metallic substrates over the past few years has shown that turbulent-like substrates increase specific catalytic efficiency. This has made it possible to enhance overall performance for a specific catalytic volume or reduce the volume while keeping catalytic efficiency constant. This paper focuses on the emission efficiency of standard, TS and PE metallic substrates. A simulation tool and flow bench measurements were used to develop a test matrix with catalyst similar pressure drop in order to examine different cell densities, substrate lengths and coating technologies. Emission tests were carried out on a KTM 990 Adventure motorcycle to evaluate substrates based on standard, TS and PE technology. The LC8 EFI engine is a state-of-the-art, typical high-performance engine with electronic injection and lambda sensor control. Results confirm that compared to standard catalysts PE technology increases the emission efficiency of the catalyst without any adverse effect on pressure drop. On the other hand, TS technology as applied in high mass-flow engines is less efficient than PE technology, provided the PE and TS substrates have the same pressure drop. Engine performance measurement has been carried out at the end of emission test to check the influence of catalyst pressure drop on power output.</div>

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Developments in New Foil Structures for Metallic Substrates (Catalytic Converters) and Their Applications on 2/3 Wheeled Vehicles

Cited by 3 publications

References 6 publications

Development of Dual Fuel Single Cylinder Natural Gas Engine an Analysis and Experimental Investigation for Performance and Emission

Development of Dual Fuel Single Cylinder Natural Gas Engine an Analysis and Experimental Investigation for Performance and Emission

Development of Dual Fuel Single Cylinder Natural Gas Engine an Analysis and Experimental Investigation for Performance and Emission

Innovative Metallic Substrate Technology to Meet Future Emission Limits

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