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Effect of Hydrogen in CNG on Small Engine Performance and Emissions
Technical Paper
2011-24-0202
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Three-wheelers have a long history in Europe and Asia as extremely durable and reliable passenger and delivery vehicles. There are a number of reasons that have resulted into the proliferation of the 3-wheelers in developing countries especially in South Asian countries. 3-wheelers are quite economical in terms of manufacturing and maintenance. They have also earned huge popularity due to their easy maneuvering capabilities. The inherent engine design of 3-wheeler with conventional fuels have recognized for lower fuel economy and higher emissions. Concerns about energy security, air quality and need for sustainable economic growth are making it imperative that all nations, especially developing countries, begin making an accelerated transition from fossil fuels to clean energy alternatives. South Asian countries have already done a remarkable job of converting a large number of three-wheelers and buses to compressed natural gas (CNG), and in India there is an on-going effort to extend this transition to hydrogen blended CNG (HCNG). Hydrogen is being added in CNG as an additive for further improving its combustion efficiency. Optimized hydrogen enriched natural gas (HCNG) engine has potential in reducing of harmful emission and greenhouse gases.
This paper highlights engine performance, regulated and non-regulated emissions using CNG and 18% HCNG blend (v/v) with different measures in a CNG three-wheeler was tested on chassis dynamometer for performance and emissions. Ignition timing of the engine was optimized for better performance. Results indicated that significant reduction in CO and HC with penalty in increase NOx emission with use of HCNG fuel. To control NOx emissions, simple mechanism of EGR system was introduced. Although hydrogen enriched fuel reduces harmful emissions significantly, non-regulated emissions were observed with HCNG fuel. Growing concern over non-regulated emissions, it is imperative to estimate non-regulated emission for assessing overall emission advantages of HCNG fuel. Non-regulated emission also measured and reported for overall emission benefits with use of HCNG fuel.
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SUBRAMANIAN, M., "Effect of Hydrogen in CNG on Small Engine Performance and Emissions," SAE Technical Paper 2011-24-0202, 2011, https://doi.org/10.4271/2011-24-0202.Also In
References
- Roser, Ranson Hydrogen-Enriched Natural; Gas Bus Demonstration NRG Technologies, Inc. 681 Edison Way Reno, NV 89502
- Nagalim, B Duebel, F Schmillen, K Performance study using natural gas, hydrogen supplemented natural gas and hydrogen in AVL research engine Int J Hydrogen Energy 1983 9 8 715 20
- Wallace, JS Cattelan, Al Hythane and CNG fueled engine exhaust emission comparison Proceedings 10 th World Hydrogen Energy Conference Cocoa Beach, USA June 20-24 1994 1761 70
- Larsen, JF Wallace, JS Comparison of emissions and efficiency of of a turbocharged lean-burn natural gas and hythane-fueled engine J Eng Gas Turbines Power 1997 119 218 26
- Shudo, T Shimamura, K Nakajima, Y Combustion and emissions in a methane Dl stratified charge engine with hydrogen pre-mixing JSAE Rev 2000 21 3 7
- Fanhua, Ma Liu, Haiquan Wang, Yu Li, Yong Wang, Junjun Zhou, Shuli Combustion and emission characteristics of port injection HCNG engine under various ignition timings Int. J Hydrogen Energy 2008 33 816 822
- Carlier, P. Hannachi, H. Mouvier, G. 1986 The chemistry of carbonyls in the atmosphere-a review Atmospheric Environment 20 2079 2099
- Carter, W.P.L. 1995 Computer modeling of environmental chamber measurements of maximum incremental reactivities of volatile organic compounds Atmospheric Environment 29 2513 2527
- Gaffney, J.S. Marley, N.A. Martin, R.S. Dixon, R.W. Reyes, L.G. Popp, C.J. 1997 Potential air quality effects of using ethanol-gasoline fuel blends: a field study in Albuquerque, New Mexico Environmental Science and Technology 31 3053 3061