نتایج جستجو برای: engine performance parameters

تعداد نتایج: 1598709  

Journal: :journal of computational & applied research in mechanical engineering (jcarme) 2012
m. v. s. murali krishna v. v. r. seshagiri rao p. v. k. murthy t. k. k. reddy

experiments were conducted to evaluate the performance of a low heat rejection (lhr) diesel engine. performance parameters and emission levels were determined at various magnitudes of brake mean effective pressure. combustion characteristics of the engine were measured with tdc (top dead centre) encoder, pressure transducer, console and special pressure-crank angle software package at peak load...

Journal: :international journal of advanced design and manufacturing technology 0
venkata krishna murthy vivekananda institute of science and information technology, affiliated to jntu, hyderabad m.v.s. murali krishna chaitanya bharathi institute of technology, gandipet, hyderabad-500 075. andhra pradesh, india

investigations are carried out to evaluate the performance of a low heat rejection (lhr) diesel engine consisting of air gap insulated piston with 3-mm air gap, with superni (an alloy of nickel) crown and air gap insulated liner with superni insert with different operating conditions of crude jatropha oil with varied injection timing and injection pressure.  performance parameters of brake ther...

Journal: :مکانیک سیالات و آیرودینامیک 0
حمیدرضا عبادی مسعود برومند محمد طیبی رهنی

the present work is focused on the performance analysis of a 1.7 liter engine with turbocharger. the ultimate target is studying the response of the turbocharger to the inlet pulsating flow. such numerical analysis requires the time variation of pressure and velocity at turbine inlet. in order to achieve such information, one dimensional unsteady viscous compressible flow within a 1.7 liter tur...

Small diesel engines are widely used for commercial vehicle and passenger car applications due to their higher torque requirements, fuel economy, and better thermal efficiency. These engines are exposed to different operating and environmental conditions and hence emissions from these engines are erratic. Strategies are required to enhance performance and reduce engine-out emissions considering...

ژورنال: تحقیقات موتور 2010
جزایری, سید علی, جهانیان, امید,

Homogenous charge compression ignition engine is a promising idea for reducing fuel consumption and engine emissions. As homogenous mixture of air and fuel is compressed until auto-ignition occurs in HCCI engines, therefore start of combustion is strongly related to chemical kinetic mechanism of fuel oxidation. In this paper, a thermodynamic single-zone model including detailed chemical kine...

Journal: :international journal of automotive engineering 0
b. mashadi iust e. zakeri

in this paper, front engine accessory drive (fead) system of automotive engine is modeled with adams software. the model is validated using engine test data. it is then used to investigate the effect of design parameters on the system performance such as belt vibration and loads on the idlers. three alternative layouts were developed in order to improve the performance of original eead system. ...

2010
M. S. SHEHATA S. M. ABDEL RAZEK Abdel Razek

An experimental study is carried out to investigate engine performance parameters and methods of reducing emissions from spark ignition engine. The used engine is four stroke four cylinder naturally aspirated spark ignition engine with compression ratio of 9, bore diameter of 80 mm and stroke of 90 mm. The engine performance parameters are presented with and without exhaust gases recirculation ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2009
ehsan samadani amir hossein shamekhi mohammad hassan behroozi reza chini

diesel engine emission standards are being more stringent as it gains more publicity in industry and transportation. hence, designers have to suggest new controlling strategies which result in small amounts of emissions and a reasonable fuel economy. to achieve such a target, multi-objective optimization methodology is a good approach inasmuch as several types of objective are minimized or maxi...

ژورنال: کنترل 2022

In this paper, first, using a test set on a turbocharged diesel engine in the engine test room, a nonlinear model is obtained and it is linearized around several operation points. Then, for the linear models, a linear quadratic integral Gaussian controller (LQIG) with variable parameters as function of engine speed is designed and simulated. In the proposed method, by controlling the wastegate,...

2007
Simukai W. Utete David A. Clifton

This paper investigates the trending of performance parameters for aircraft engine condition monitoring. Vibration data is often an indicator of sudden changes in the state of an aircraft engine. Performance parameters, which include pressure and temperature data, usually track slower changes in engine condition. The aim of this paper is to determine precursors to engine events through performa...

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