scholarly journals Optimization Analysis of Engine Intake System Based on Coupling Matlab-Simulink with GT-Power

2021 ◽  
Vol 2021 ◽  
pp. 1-17
Author(s):  
Feng Jiang ◽  
Minghai Li ◽  
Jiayan Wen ◽  
Zedan Tan ◽  
Wenyun Zhou
Keyword(s):  
Performance Optimization ◽  
Optimization Model ◽  
High Speed ◽  
Gasoline Engine ◽  
Volumetric Efficiency ◽  
Intake Manifold ◽  
Original Result ◽  
Matlab Simulink ◽  
Intake System ◽  
Engine Power

In the work, the suitable volumetric efficiency is very important for the gasoline engine to achieve the aim of energy-saving and emission reduction. Thus, the intake system characteristics, such as intake manifold length, diameter, volumetric efficiency, and valve phase, should be investigated in detail. In order to investigate the performance optimization of the engine intake system, an optimization model of the engine intake system is developed by the GT-Power coupled with Matlab-Simulink and validated by the experimental results under the different conditions at full load. The engine power-, torque-, and brake-specific fuel consumption are defined as the result variables of the optimization model, and the length and diameter of the intake manifold are defined as the independent variables of the model. The results show that the length of intake manifold has little influence on the engine power and BSFC, and the length of intake manifold has a great impact on the performance index at high speed. In addition, the engine volumetric efficiency is the highest when the length of intake manifold is in the range of 240 and 250 mm. The engine BSFC improved by variable valve timing is significant compared with the original result. Finally, the improvement suggestions for the performance enhancement of the gasoline engine are proposed.

PRESTASI MOTOR DIESEL DENGAN OPTIMALISASI SISTEM INTAKE MANIFOLD PAK SYS (PERFORMANCE AIR INTAKE SYSTEM) TURBO FAN AXIAL

ROTOR ◽  
2017 ◽  
Vol 10 (2) ◽  
pp. 32
Author(s):  
Ahmad Robiul Awal Udin ◽  
Adityo Adityo
Keyword(s):  
Engine Speed ◽  
Average Power ◽  
Combustion Process ◽  
Volumetric Efficiency ◽  
Intake Manifold ◽  
Axial Fan ◽  
Intake System ◽  
Air Intake ◽  
Minor Losses ◽  
Diesel Motors

The development of motor vehicle technology has urgency of increasing the efficiency for the engine of fuel requirements that will be used in the combustion process to produce output parameters. One of the elements for an effective combustion process for the fuel mixture composition is the quantity and the air capacity to be supplied for each cylinder. The construction of intake manifold is one of minor losses for requirement capacity of air when intake suction take occured. The addition of Axial Fan in the intake manifold system of diesel motors is expected to meet the air supply capacity and minimize minor losses, so the performance engine like :  volumetric efficiency, torque and power increased. Fundamental of air Intake System Performance Method to inducting (forces) amount of the air through Fan Axial Double Blade blades. This study uses a quasi-experimental method that compares the intake manifold with or without the installation of axial (standard) fan to the torque and power generated from four diesel motors (4) steps. From the test obtained an average torque increase of 22%, with the highest torque at the beginning of 1150 rpm engine speed of 41.8 Nm, while the average power increase of 13% with a power rating of 8 KW at 2200 rpm engine speed. While the volumetric efficiency experienced an average increase of 6% with a significant percentage of engine speed of 2200 rpm which reached 98.8%. Keywords: Torque, Power, Diesel, Intake Manifold, Axial Fan

Optimization of the intake manifold of the Royal Enfield 500 electronic fuel injection engine

2020 ◽  
pp. 95-101
Author(s):  
Naman Walia ◽  
Sarthak Sharma ◽  
Vishrut Munjal ◽  
Shivang Sharma
Keyword(s):  
Pressure Drop ◽  
Flow Rate ◽  
Power Output ◽  
Engine Speed ◽  
Fuel Injection ◽  
Volumetric Efficiency ◽  
Intake Manifold ◽  
Geometrical Parameters ◽  
Cfd Simulations ◽  
Engine Power

Intake manifold determines the charge flowing or the mass flow rate of the fuel and air mixture, which greatly influenced the volumetric efficiency of an engine. It has a great impact on engine power and torque. They are greatly affected by degree to which cylinders are charged & geometrical parameters of intake manifold. Every specified engine has its specific engine speed and it can be optimized with the help of the intake manifold geometry. Current work aims to study the effects of various designs of Intake manifolds for a naturally aspirated Royal Enfield EFI500 engine and to increase volumetric efficiency for FSAE related competitions, by doing CFD simulations and tuning of runner length. The objective is to increase the volumetric efficiency of the engine assuming a standard restriction of 20mm diameter to limit the overall power output. After CFD on intake manifold, results obtained in the least pressure drop and hence maximum volumetric efficiency.

Calculation and Optimization Design of LJ276M Gasoline Engine Intake System

2011 ◽  
Vol 55-57 ◽  
pp. 1619-1624
Author(s):  
Ming Yi Zhu ◽  
Zhi Hua Cui ◽  
Qing Liu
Keyword(s):  
Process Model ◽  
Optimization Design ◽  
Gasoline Engine ◽  
Structural Parameters ◽  
Dynamic Performance ◽  
Simulation Software ◽  
Intake Manifold ◽  
Intake System ◽  
Verification Methods ◽  
Test Verification

Based on parameters and design requirements of the original LJ276M gasoline engine, using Helmholtz theory to calculate resonance frequency, intake manifold length and diameter and other structural parameters, rapid design a new resonance intake system. And then apply simulation software GT-Power to build working process model of the LJ276M Electronically Controlled Gasoline engine, and determine the final structural parameters of the intake system through the use of rapid prototyping and test verification methods. Compared with the original machine, the dynamic performance is improved significantly by the use of optimum design of the intake system.

scholarly journals Simulation on engine characteristic improvement by re-designing intake manifold

2015 ◽  
Vol 18 (4) ◽  
pp. 31-38
Author(s):  
Toan Danh Vo ◽  
Cong Thanh Huynh
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Experimental Test ◽  
Evaluation Criteria ◽  
Volumetric Efficiency ◽  
Intake Manifold ◽  
Emission Characteristics ◽  
Cylinder Model ◽  
Di Diesel Engine ◽  
Engine Power

In this paper, a simulation of DI diesel engine 1 cylinder, model RV165-2 is used to investigate the effect of intake manifold design on the volumetric efficiency and characteristics by using AVL BOOST software. The proposed plans are evaluated and compared with available models. Conditions of simulation is based on the structure of engine and parameters from experimental test. The parameters of performance, combustion and emission characteristics are selected as evaluation criteria. The results of optimizing intake manifold are increasing volumetric efficiency, ability to blend the mixture of fuel and air, better combustion and increasing engine power, reducing fuel consumption and emission.

Analysis of the Impact of High Speed on the Dynamic Characteristics of Engine by Intake Phase

2013 ◽  
Vol 475-476 ◽  
pp. 1406-1409
Author(s):  
Jiang Tao Xu
Keyword(s):  
Dynamic Characteristics ◽  
High Speed ◽  
Air Mass ◽  
Electromagnetic Valve ◽  
Intake System ◽  
Vehicle Engine ◽  
Air Intake ◽  
The Impact ◽  
Engine Power

Thispaperbases on the electromagnetic driving valve technology, make the intake system used electromagnetic valve a vehicle engine at 5200 rpm. Found that increasing the intake Continued phase not always value increases intake air mass , but taking into account the effect of reflux cylinder, phase only opening time and the cylinder return to match the increased the air intake of the engine, and then improve the engine power performance.The results shows that intake air quantity can be improved 7.368%at5200 speed.

scholarly journals A Fuzzy Optimization Model for High-Speed Railway Timetable Rescheduling

2012 ◽  
Vol 2012 ◽  
pp. 1-22 ◽  
Author(s):  
Li Wang ◽  
Yong Qin ◽  
Jie Xu ◽  
Limin Jia
Keyword(s):  
Optimization Model ◽  
High Speed ◽  
Fuzzy Optimization ◽  
Soft Constraints ◽  
Accurate Approximation ◽  
Total Delay ◽  
High Speed Rail ◽  
High Speed Railway ◽  
Tolerance Approach ◽  
Rail Line

A fuzzy optimization model based on improved symmetric tolerance approach is introduced, which allows for rescheduling high-speed railway timetable under unexpected interferences. The model nests different parameters of the soft constraints with uncertainty margin to describe their importance to the optimization purpose and treats the objective in the same manner. Thus a new optimal instrument is expected to achieve a new timetable subject to little slack of constraints. The section between Nanjing and Shanghai, which is the busiest, of Beijing-Shanghai high-speed rail line in China is used as the simulated measurement. The fuzzy optimization model provides an accurate approximation on train running time and headway time, and hence the results suggest that the number of seriously impacted trains and total delay time can be reduced significantly subject to little cost and risk.

The Research of Lean Combustion Characteristic of Compound Injection System of Direct Injection Engine

2014 ◽  
Vol 532 ◽  
pp. 362-366 ◽  
Author(s):  
Jiang Feng Mou ◽  
Rui Qing Chen ◽  
Yi Wei Lu
Keyword(s):  
Gasoline Engine ◽  
Direct Injection ◽  
Injection System ◽  
Intake Manifold ◽  
Combustion Characteristic ◽  
Injection Timing ◽  
Mixed Gas ◽  
Lean Burn ◽  
Direct Injection Engine ◽  
Lean Combustion

This paper studies the lean burn limit characteristic of the compound injection system of the direct-injection gasoline engine. The low pressure nozzle on the intake manifold can achieve quality homogeneous lean mixture, and the direct injection in the cylinder can realized the dense mixture gas near the spark plug. By adjusting the two injection timing and injection quantity, and a strong intake tumble flow with special shaped combustion chamber, it can produces the reverse tumble to form different hierarchical levels of mixed gas in the cylinder. Experimental results show: the compound combustion system to the original direct-injection engine lean burn limit raise 1.8-2.5 AFR unit.

Modeling and Optimization Design of Signal Interconnect Channel Considering Signal Integrity in Three Dimensional Integrated Circuits

2021 ◽  
Vol 16 (5) ◽  
pp. 773-780
Author(s):  
Bing-Jie Li ◽  
Zhen-Song Li ◽  
Yan-Ping Zhao ◽  
Zheng-Wang Li ◽  
Min Miao
Keyword(s):  
Performance Optimization ◽  
High Speed ◽  
Optimization Design ◽  
Channel Model ◽  
Transmission Loss ◽  
Coupling Effect ◽  
Signal Integrity ◽  
Signal Transmission ◽  
Equivalent Circuit Model ◽  
Transmission Performance

The signal integrity (SI) analysis of a high-speed signal interconnect channel composed of through silicon vias (TSVs) and horizontal re-distribution layers (RDL) is carried out, and the problems of SI, such as transmission loss, crosstalk and coupling effect in the transmission channel, are analyzed and studied. These signal integrity issues are considered in this paper, a signal interconnect channel model is proposed and the equivalent circuit model is deduced as well. Compared with the traditional one, this interconnect channel model has better performance in SI. Further sweep frequency analysis is carried out for different material parameters to achieve signal transmission performance optimization aimed at this model. Test samples of the proposed signal interconnect channel model are designed and fabricated according to the process index, and measured to verify the actual transmission performance. The design and optimization rule of high-speed signal interconnect channel are summarized which proved that the proposed structure has more advantages in signal transmission performance, and has important guiding significance for practical design.

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