Results 1 to 10 of about 319,195 (294)

Influence of multiple pre-injection on engine performance based on exhaust gas control [PDF]

open access: yesE3S Web of Conferences, 2021
With the development of the society, the emission laws are increasingly strict, and EGR and multiple pre-injection strategy can effectively reduce emissions. In order to study the influence of EGR rate and pre-injection on the emission and performance of
Zhang Enxing   +5 more
doaj   +1 more source

Numerical Investigation of Reactivity Controlled Compression Ignition Engine Performance under Fuel Aggregation Collision to Piston Bowl Rim Edge Situation [PDF]

open access: yesIranica Journal of Energy and Environment, 2021
To better homogenize the mixture of fuel and air in the combustion chamber and to enhance the controllability of ignition timing in Reactivity Controlled Compression Ignition (RCCI) engines, controlling the start of injection (SOI) timing can be ...
S. Talesh Amiri   +3 more
doaj   +1 more source

Effect of Octane Number on Performance and Exhaust Emissions of an SI Engine [PDF]

open access: yesEngineering and Technology Journal, 2020
Spark ignition engines are very popular engines that they are running millions of vehicles all over the world. This engine emits many harmful pollutants, such as CO, UHC, and NOX.
Noor Athafah, Adei Salih
doaj   +1 more source

The Simultaneously Removal of NOx and SO2 Processes through a Polysulfone Hollow Fiber Membrane Module

open access: yesInternational Journal of Technology, 2023
Hazardous pollutants such as NOx (NO and NO2) and SO2 generally come from fossil fuel combustion, harm the human respiratory system, and damage environmental ecosystems.
Sutrasno Kartohardjono   +4 more
doaj   +1 more source

High Resolution Modelling of Traffic Emissions Using the Large Eddy Simulation Code Fluidity

open access: yesAtmosphere, 2022
The large eddy simulation (LES) code Fluidity was used to simulate the dispersion of NOx traffic emissions along a road in London. The traffic emissions were represented by moving volume sources, one for each vehicle, with time-varying emission rates ...
Huw Woodward   +7 more
doaj   +1 more source

Comparison of Characteristics of SCR-DeNOx Catalyst for Gas-Turbine Units and Coal-Fired Units

open access: yesZhongguo dianli, 2021
Based on the comparison between gas-turbine units and coal-fired units in terms of the NOx emission policy requirements and the characteristics of catalysts in SCR process, this paper expounds the importance of SCR-DeNOx application in gas turbine units ...
Zhitan LIU   +4 more
doaj   +1 more source

To reduce NOx emission based on optimizing the existing states of coarse coke breeze during iron ore sintering process

open access: yes工程科学学报, 2020
With the development of the iron and steel industry, the amount of NOx emissions is increasing year by year, and this causes environmental pollution in forms such as acidic rain and photochemical smog, which greatly threatens human health and social ...
Zhi-gang QUE, Sheng-li WU, Xian-bin AI
doaj   +1 more source

Photochemistry in the arctic free troposphere: NOx budget and the role of odd nitrogen reservoir recycling [PDF]

open access: yes, 2003
The budget of nitrogen oxides (NOx) in the arctic free troposphere is calculated with a constrained photochemical box model using aircraft observations from the Tropospheric O3 Production about the Spring Equinox (TOPSE) campaign between February and May.
Atlas, E   +13 more
core   +1 more source

Upper Airway Collapsibility During Rapid Eye Movement Sleep Is Associated With the Response to Upper Airway Surgery for Obstructive Sleep Apnea [PDF]

open access: yesClinical and Experimental Otorhinolaryngology
Objectives. Endotype-based interventions have shown promise in the treatment of patients with obstructive sleep apnea, and upper airway surgery is a key therapeutic option.
Yung-An Tsou   +5 more
doaj   +1 more source

Co-firing of coal and woody biomass under conditions of reburning technology with natural gas

open access: yesInternational Journal of Renewable Energy Development, 2023
It is a continuous imperative to establish the most efficient process of conversion of primary energy from fuel through combustion, which also has the least possible harmful effect on the environment. In this time of expressed demands for decarbonisation,
Nihad Hodžić, Kenan Kadic
doaj   +1 more source

Home - About - Disclaimer - Privacy