Design and Analysis of Intake Manifold of Single Cylinder Engine

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Design and Analysis of Intake Manifold of Single Cylinder Engine

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Sahil Wahi1, Sahib Singp

1Department of Mechanical Engineering,

DR BR Ambedkar National Institute of Technology, Jalandhar,

Punjab, India

Abstract:- The performance of an Internal combustion engine is highly determined by the inlet air conditions and air fuel ratio .This paper shall discuss about the role of intake manifold in governing the inlet conditions during the air suction ,the design of intake manifold ,optimization of parameters of design, changing the inlet conditions and predicting the final results. The design and optimization include qualitative use of ANSYS FLUENT for the simulation purpose and predicting the flow properties.


Intake manifold is a component of engine which governs the inlet air flow conditions of the engine. Air enters through the intake manifold comprising of different components and then through a throttle body(in gasoline engines) it enters the engine during the suction stroke .The amount of air entering the engine greatly determines its performance including its volumetric efficiency

,Brake mean effective pressure ,horsepower and specific air fuel consumption.

1.1 Various components of the intake manifoldExperiment Specification:2.1.1 12 o – 5 o Diffuser-Nozzle angle2.1.2 14o-6o Diffuser -Nozzle angle2.1.3 10o-4o Diffuser Nozzle angle2.1.4 11o – 7o Diffuser- Nozzle angle2.2.1 800cc of Plenum volume(b) Elliptical Plenum:(c) Curved Plenum:(d) Circular Plenum:2.2.2 1000cc Plenum Volume(a) Rectangular Plenum:(b) Circular Plenum:(c) Curved Plenum:(d) Elliptical Plenum:2.2.3 600cc Plenum Volume:(a) Rectangular Plenum:(b) Curved Plenum:(c) Circular Plenum:(d) Elliptical Plenum :2.3 RESULTS OF PLENUM OPTIMIZATION:2.3 RUNNER DESIGN OPTIMIZATION:

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