نتایج جستجو برای: combustion

تعداد نتایج: 30613  

2015
Hu Wang Zunqing Zheng Haifeng Liu Mingfa Yao

This paper presents a review on the combustion mode design with high efficiency and low emissions controlled by fuel reactivity and mixture stratification that have been conducted in the authors’ group, including the charge reactivity controlled homogeneous charge compression ignition (HCCI) combustion, stratification controlled premixed charge compression ignition combustion, and dual-fuel com...

ژورنال: مواد پرانرژی 2018

The occurrence of any oscillation and turbulence in the combustion chamber pressure exits the combustion stability conditions. The range of these fluctuations depends on productive operating conditions and is always undesirable, even if they do not have explosion and destruction effects. In this paper, while investigating the process of combustion solid propellant combustion phenomenon and its ...

Journal: :تحقیقات موتور 0
رحیم خوشبختی سرای r. khoshbakhti saray سید وهاب پیروزپناه s.v. pirouzpanah

the dual fuel engines at part loads inevitably suffer from lower thermal efficiency and higher carbon monoxide and unburned fuel emission. this work is carried out to investigate combustion characteristics of a dual fuel (dieselgas) engine at part loads, using a single zone combustion model with detailed chemical kinetics for combustion of natural gas fuel. the authors developed software in whi...

2007
C. Ryu S. Choi

CFD analysis on the MSW incinerator combustion chamber provides crucial insight on the thermal flow fields, but a difficulty arise from the boundary conditions on the waste bed in which the combustion is governed by complicated heat and mass transfer phenomena. Solid waste bed combustion models are constructed to predict the combustion process and corresponding generation of gas phase species b...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

nanocrystalline complex oxides have been synthesized by combination of sol–gel auto combustion and ultrasonic irradiation techniques using copper nitrate, zinc nitrate as metallic nitrates and glycine, urea and thiourea as fuels. sol-gel combustion (combination of the chemical sol–gel process and the combustion process) as a proper synthesized technique is used to synthesize zno/cuo nanocomposi...

2012
Stanislaw Szwaja

The paper describes correlation between combustion knock intensity and combustion rate calculated as the heat release rate from combustion pressure traces of a hydrogen fuelled spark ignited engine. Unlike a gasoline spark ignited (SI) engine, the hydrogen fuelled engine can easily generate knock during combustion at working conditions similar to a gasoline engine. However, the hydrogen knock d...

  This paper presents a modeling study of a CNG Homogenous Charge Compression Ignition (HCCI) engine using single-zone and multi-zone combustion models. Authors' developed code could be able to predict engine combustion and performance parameters in closed part of the engine cycle. As detailed chemical kinetics is necessary to investigate combustion process in HCCI engines, therefore, GRI-m...

2014
A. J. Torregrosa A. Broatch A. Garcia L. F. Mónico

Diesel engines are the most commonly used internal combustion engines nowadays, especially in European transportation. This preference is due to their low consumption and acceptable driveability and comfort. However, the main disadvantages of traditional direct injection Diesel engines are their high levels of noise, nitrogen oxides (NO x) and soot emissions, and the usage of fossil fuels. In o...

2016
Helong Li Wei Chu Huailiang Xu Ya Cheng See-Leang Chin Kaoru Yamanouchi Hong-Bo Sun

Laser filamentation produced by the propagation of intense laser pulses in flames is opening up new possibility in application to combustion diagnostics that can provide useful information on understanding combustion processes, enhancing combustion efficiency and reducing pollutant products. Here we present simultaneous identification of multiple combustion intermediates by femtosecond filament...

2005
Stanislav I. Stoliarov Qaadir Williams Richard N. Walters Sean Crowley Richard E. Lyon

Federal Aviation Administration te technical note technica te technical note technica NOTICE This document is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The United States Government assumes no liability for the contents or use thereof. The United States Government does not endorse products or manufacturers. Trade or manuf...

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