Evaluation Of A Two Stroke Compressed Natural Gas Mixer Design By Simulation And Experimental Techniques

Natural gas is a viable alternative fuel that is able to reduce tailpipe emission, most notably in two stroke engines it is available in compressed form or Compressed Natural Gas (CNG) for easy storage. The excessive by-products of two-stroke engine combustion; normally due to inefficient combustion...

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Main Authors: D., Ramasamy, Samykano, Mahendran
Format: Conference or Workshop Item
Language:English
Published: 2010
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/1595/1/60_NCMER_040.pdf
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author D., Ramasamy
Samykano, Mahendran
author_facet D., Ramasamy
Samykano, Mahendran
author_sort D., Ramasamy
collection UMP
description Natural gas is a viable alternative fuel that is able to reduce tailpipe emission, most notably in two stroke engines it is available in compressed form or Compressed Natural Gas (CNG) for easy storage. The excessive by-products of two-stroke engine combustion; normally due to inefficient combustion process is largely attributed to high particulate, carbon monoxide and hydrocarbon constituents. A prototype uniflow-type single-cylinder engine was equipped with a bi-fuel conversion system were used for the work. A dedicated mixer was also developed to meter the gaseous fuel through the engine intake system. It was designed to meet the air and fuel requirement similar to the gasoline counterpart. Modeling of the mixer was made to obtain optimum orifice diameter using three different sizes of 14, 16 and 18mm respectively. Here, flow simulations using a standard Computational Fluid Dynamics (CFD) software were extensively used and the predicted results were subsequently validated using a dedicated a flow test rig. Pressure drop across the venturi is an important parameter as it determines the actual fuel-air ratio in the actual engine. A good agreement of CFD outputs with that of the experimental outputs was recorded. This paper highlights the work, which leads to the use of the dedicated CNG fuelling system in a general-purpose gasoline two-stroke engine.
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spelling UMPir15952018-04-26T02:09:18Z http://umpir.ump.edu.my/id/eprint/1595/ Evaluation Of A Two Stroke Compressed Natural Gas Mixer Design By Simulation And Experimental Techniques D., Ramasamy Samykano, Mahendran TJ Mechanical engineering and machinery Natural gas is a viable alternative fuel that is able to reduce tailpipe emission, most notably in two stroke engines it is available in compressed form or Compressed Natural Gas (CNG) for easy storage. The excessive by-products of two-stroke engine combustion; normally due to inefficient combustion process is largely attributed to high particulate, carbon monoxide and hydrocarbon constituents. A prototype uniflow-type single-cylinder engine was equipped with a bi-fuel conversion system were used for the work. A dedicated mixer was also developed to meter the gaseous fuel through the engine intake system. It was designed to meet the air and fuel requirement similar to the gasoline counterpart. Modeling of the mixer was made to obtain optimum orifice diameter using three different sizes of 14, 16 and 18mm respectively. Here, flow simulations using a standard Computational Fluid Dynamics (CFD) software were extensively used and the predicted results were subsequently validated using a dedicated a flow test rig. Pressure drop across the venturi is an important parameter as it determines the actual fuel-air ratio in the actual engine. A good agreement of CFD outputs with that of the experimental outputs was recorded. This paper highlights the work, which leads to the use of the dedicated CNG fuelling system in a general-purpose gasoline two-stroke engine. 2010 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/1595/1/60_NCMER_040.pdf D., Ramasamy and Samykano, Mahendran (2010) Evaluation Of A Two Stroke Compressed Natural Gas Mixer Design By Simulation And Experimental Techniques. In: National Conference in Mechanical Engineering Research and Postgraduate Students (1st NCMER 2010) , 26-27 May 2010 , FKM Conference Hall, UMP, Kuantan, Pahang, Malaysia. . (Published)
spellingShingle TJ Mechanical engineering and machinery
D., Ramasamy
Samykano, Mahendran
Evaluation Of A Two Stroke Compressed Natural Gas Mixer Design By Simulation And Experimental Techniques
title Evaluation Of A Two Stroke Compressed Natural Gas Mixer Design By Simulation And Experimental Techniques
title_full Evaluation Of A Two Stroke Compressed Natural Gas Mixer Design By Simulation And Experimental Techniques
title_fullStr Evaluation Of A Two Stroke Compressed Natural Gas Mixer Design By Simulation And Experimental Techniques
title_full_unstemmed Evaluation Of A Two Stroke Compressed Natural Gas Mixer Design By Simulation And Experimental Techniques
title_short Evaluation Of A Two Stroke Compressed Natural Gas Mixer Design By Simulation And Experimental Techniques
title_sort evaluation of a two stroke compressed natural gas mixer design by simulation and experimental techniques
topic TJ Mechanical engineering and machinery
url http://umpir.ump.edu.my/id/eprint/1595/1/60_NCMER_040.pdf
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