Effects of Air Intake Pressure to the Fuel Economy and Exhaust Emissions on a Small SI Engine

Abdullah, Nik Rosli; Shahruddin, Nafis Syabil; Mamat, Aman Mohd Ihsan; Kasolang, Salmiah; Zulkifli, Aminuddin; Mamat, Rizalman

doi:10.1016/j.proeng.2013.12.180

Cited by 29 publications

(18 citation statements)

References 8 publications

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“…Results revealed a decrease in performance of nominally 4% per 300 m of elevation due to pressure while improvements of 1% per 300 m due to temperature effects. The effects of air intake pressure on the engine performance and emission of single cylinder SI engine was investigated by Abdullah et al (2013). In this case, they did not change the altitude but remove air filter box to improve pressure drop and increase intake air pressure.…”

Section: Fig 1 Altitude Above Sea Level For Some Iranian Citiesmentioning

confidence: 99%

Effects of Altitude and Temperature on the Performance and Efficiency of Turbocharged Direct Injection Gasoline Engine

Motahari¹,

Chitsaz²

2019

JAFM

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Iran is located at the high altitude region and has a diverse four season climate. The temperature difference of two locations at the same time reaches to 50° C. Therefore, the modern direct injection turbocharged engines are highly affected at this condition. This paper deals with the effects of temperature and pressure variations on the engine performance and fuel consumption of turbocharged gasoline direct injection engine. Ford ecoboost is selected for this study and the base experiments are performed at the sea level. At the next step, a comprehensive one-dimensional model of the engine is constructed in GT power and validated with experimental data. Validated model is implemented to investigate the effects of ambient air variations on the engine performance and fuel consumption. The simulations revealed that low end torque is not highly affected by the temperature increase due to the turbocharging compensation while engine torque is significantly dropped at high engine speeds in the elevated temperatures. At constant air temperature, brake specific fuel consumption is decreased for higher intake pressure up to 3000 rpm and does not change up to 3500 rpm.

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Section: Fig 1 Altitude Above Sea Level For Some Iranian Citiesmentioning

confidence: 99%

Effects of Altitude and Temperature on the Performance and Efficiency of Turbocharged Direct Injection Gasoline Engine

Motahari¹,

Chitsaz²

2019

JAFM

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“…Beyond that engine speed, the BSFC for the lightweight engine with the air intake tank is higher than the baseline engine. With the increased air intake pressure caused by the air intake tank, in order to improve the cylinder filling at high rpm, the air-fuel mixture is forced in and creates rich combustion which consumes more fuel [30]. …”

Section: Data Collectionmentioning

confidence: 99%

Characteristics of K3-Vei4 Engine Performance Using Swirl Generator, Air Intake Tank and Exhaust Gas Recirculation Modification

Mat¹,

Badrulhisam²,

Hanafiah³

et al. 2015

Int. J. Automot. Mech. Eng.

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The paper studies the characteristics of K3-VEi4 engine performance using swirl generator, air intake tank and exhaust gas recirculation (EGR) modification. Engine weight is reduced prior to the other modifications in order to reduce inertia loss. Then an air intake tank is mounted before the throttle body in order to increase the air intake pressure. A swirl generator is mounted at the air intake manifold to blend the air-to-fuel mixture. EGR is installed to improve the engine performance by reusing the unburnt fuel and increasing the air intake temperature. The effects of the engine modifications on the engine performance are analyzed on a chassis dynamometer. Performance parameters such as engine power and brake specific fuel consumption (BSFC) are then analyzed for each modification individually and then the whole system combined. The result shows that a gain of about 117% in terms of power can be achieved with the different modifications put together and a reduction of around 62% on the BSFC. These improvements are obtained at low rpm, corresponding to city driving. A more thorough study of the EGR tapping position would further improve its implementation to increase engine performance and fuel efficiency.

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“…Mohamad and Amroune [3] used computational fluid dynamic (CFD) tools to describe the flow effects on engine exhaust chamber acoustic level and showed the transmission loss of muffler at different frequencies using 1D boost solver. Abdullah et al [4] studied the engine performance in term of fuel consumption. Exhaust emission was influenced by the air intake pressure.…”

Section: Introductionmentioning

confidence: 99%

CFD Modelling of Formula Student Car Intake System

2020

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Formula Student Car (FS) is an international race car design competition for students at universities of applied sciences and technical universities. The winning team is not the one that produces the fastest racing car, but the group that achieves the highest overall score in design, racing performance. The arrangement of internal components for example, predicting aerodynamics of the air intake system is crucial to optimizing car performance as speed changes. The air intake system consists of an inlet nozzle, throttle, restrictor, air box and cylinder suction pipes (runners). The paper deals with the use of CFD numerical simulations during the design and optimization of components. In this research article, two main steps are illustrated to develop carefully the design of the air box and match it with the suction pipe lengths to optimize torque over the entire range of operating speeds. Also the current intake system was assessed acoustically and simulated by means of 1-D gas dynamics using the software AVL-Boost. In this manner, before a new prototype intake manifold is built, the designer can save a substantial amount of time and resources. The results illustrate the improvement of simulation quality using the new models compared to the previous AVL-Boost models.The results illustrate the improvement of simulation quality using the new models compared to the previous AVL-Boost models.

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Effects of Air Intake Pressure to the Fuel Economy and Exhaust Emissions on a Small SI Engine

Cited by 29 publications

References 8 publications

Effects of Altitude and Temperature on the Performance and Efficiency of Turbocharged Direct Injection Gasoline Engine

Effects of Altitude and Temperature on the Performance and Efficiency of Turbocharged Direct Injection Gasoline Engine

Characteristics of K3-Vei4 Engine Performance Using Swirl Generator, Air Intake Tank and Exhaust Gas Recirculation Modification

CFD Modelling of Formula Student Car Intake System

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