Design of a new SI engine intake manifold with variable length plenum

Ceviz, Mehmet Akif; Akin, M.

doi:10.1016/j.enconman.2010.03.018

Cited by 73 publications

(27 citation statements)

References 13 publications

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“…Continuous variable intake plenum length is applied to match the suitable length of intake plenum with respective engine speed for enhancing engine performance characteristics, especially fuel consumption, through all operating conditions. A longer intake plenum length is suitable for low RPM ranging from 1000 to 3000 on average while a shorter intake plenum length is generally suitable for RPM higher than 4000 (Ceviz & Akın, 2010). In this project, air intake pressure is observed after the air filter point of both variables, which is the air intake system with air filter and the air intake system without air filter.…”

Section: Introductionmentioning

confidence: 95%

Effects of Air Intake Pressure on the Engine Performance, Fuel Economy and Exhaust Emissions of A Small Gasoline Engine

Abdullah¹,

Shahruddin²,

Mamat³

et al. 2014

J MECH ENG SCI

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This study presents the engine performance, fuel economy and exhaust emissions at variations of air intake pressure. In a carburetor system, the air intake pressure is influenced by the degree of opening throttle plate and the Venturi effect which draws the fuel to the combustion chamber. The experimental work was carried out on variations of engine speed and load using a single cylinder four stroke gasoline engine attached to a dynamometer. The measured exhaust emission compositions are used to determine the mode of combustion. The results show that the standard air intake system resulted in rich combustion which then led to incomplete combustion, which was caused by less availability of air for the combustion process. Eliminating the air filter reduces the air flow restriction in the air intake system resulting in better combustion and less unburned components due to higher air availability. Higher air intake pressure is better at increasing the efficiency of combustion within a limited time to improve fuel economy, power output and exhaust emissions. Better combustion also leads to reduced unburned components such as carbon (C), hydrogen (H 2 ), carbon monoxide (CO) and hydroxide (OH), which results in cleaner emissions.

show abstract

Section: Introductionmentioning

confidence: 95%

Effects of Air Intake Pressure on the Engine Performance, Fuel Economy and Exhaust Emissions of A Small Gasoline Engine

Abdullah¹,

Shahruddin²,

Mamat³

et al. 2014

J MECH ENG SCI

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show abstract

“…Many other researches have been performed in other to decrease side friction and increase the thermal efficiency of the current engines, for instances by optimizing combustion phasing [48], utilizing exhaust gas re-circulation (EGR) technology [49], modifying coating materials and/or engine components [50][51][52], performing gasoline fumigation [53] among others; however, these improvements are limited due to restrictions that are inherent to the conventional mechanism structure. Therefore, utilizing a new structural combination that would answer some of the before mentioned needs might be inevitable.…”

Section: Introductionmentioning

confidence: 99%

A new and efficient mechanism for spark ignition engines

Shadloo¹,

Poultangari²,

Jamalabadi³

et al. 2015

Energy Conversion and Management

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“…Geometry of intake manifold affects the flow of air/fuel mixture. The intake manifold length can be changed in some engines using adjustable mechanical parts [6,7]. It affects the mixture turbulence inside the combustion chamber and hence affects pressure and the burning velocity duration.…”

Section: Intake Manifold Length Andmentioning

confidence: 99%

“…Negative valve overlapping (NVO) consists of closing both valves for a period of time [5][6][7][8]. Exhaust valve closes before piston reaches the TDC, and intake valve opens after piston moves beyond the TDC.…”

Section: Valve Overlappingmentioning

confidence: 99%

Comparison of Engine Simulation Software for Development of Control System

Chan

Ordys

Волков

et al. 2013

Modelling and Simulation in Engineering

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Most commonly used commercial engine simulation packages generate detailed estimation of the combustion and gas flow parameters. These parameters are required for advanced research on fluid flow and heat transfer and development of geometries of engine components. However, engine control involves different operating parameters. Various sensors are installed into the engine, the combustion performance is recorded, and data is sent to engine control unit (ECU). ECU computes the new set of parameters to make fine adjustments to actuators providing better engine performance. Such techniques include variable valve timing, variable ignition timing, variable air to fuel ratio, and variable compression ratio. In the present study, two of the commercial packages, Ricardo Wave and Lotus Engine Simulation, have been tested on the capabilities for engine control purposes. These packages are compared with an in-house developed package and with reference results available from the literature. Different numerical experiments have been carried out from which it can be concluded that all packages predict similar profiles of pressure and temperature in the engine cylinder. Moreover, those are in reasonable agreement with the reference results while in-house developed package is possible to run simulations with changing speed for engine control purpose.

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Design of a new SI engine intake manifold with variable length plenum

Cited by 73 publications

References 13 publications

Effects of Air Intake Pressure on the Engine Performance, Fuel Economy and Exhaust Emissions of A Small Gasoline Engine

Effects of Air Intake Pressure on the Engine Performance, Fuel Economy and Exhaust Emissions of A Small Gasoline Engine

A new and efficient mechanism for spark ignition engines

Comparison of Engine Simulation Software for Development of Control System

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