Results 1 to 10 of about 143,821 (315)

A systematic review of the impact of commercial aircraft activity on air quality near airports

open access: yesCity and Environment Interactions, 2021
Commercial airport activity can adversely impact air quality in the vicinity of airports, and millions of people live close to major airports in the United States.
Karie Riley   +3 more
doaj   +1 more source

Photoreduction of CO2 in the presence of CH4 over g-C3N4 modified with TiO2 nanoparticles at room temperature

open access: yesGreen Energy & Environment, 2021
CO2 reduction under simulated sunlight over photocatalysts has become an attractive researcher area recently. In this work, carbon nitride compounds modified by TiO2 nanoparticles (TNPs) have been used for the photoreduction of CO2 in the presence of CH4
Ming Chen   +9 more
doaj   +1 more source

Modeling and Predicting Heavy-Duty Vehicle Engine-Out and Tailpipe Nitrogen Oxide (NOx) Emissions Using Deep Learning

open access: yesFrontiers in Mechanical Engineering, 2022
As emissions regulations for transportation become stricter, it is increasingly important to develop accurate nitrogen oxide (NOx) emissions models for heavy-duty vehicles.
Rinav Pillai   +7 more
doaj   +1 more source

Evaluating Asymmetric Approaches to the Estimation of Standard Uncertainties for Emission Factors in the Fuel Sector of Costa Rica

open access: yesFrontiers in Environmental Science, 2021
A new environmental challenge for Costa Rica involves the precise and reliable quantification of data from its fossil-fueled transportation sector. In the context of greenhouse gas inventories (measurement), uncertainty assessment, as the best quality ...
Gabriel Molina-Castro   +1 more
doaj   +1 more source

COMPARATIVE ASSESSMENT OF GASEOUS FUEL EMISSION

open access: yesBulletin of the National Technical University "KhPI". Series: Chemistry, Chemical Technology and Ecology, 2021
The work presents estimated comparative assessment of emissions release in combustion products during work of high–power steam boilers with the use of traditional fuel – natural gas and alternative fuels – blast–furnace and coke–oven gases generated in the process of technological cycle at iron and steel and coke–chemical enterprises.
Olena Hryhoriivna Levytska   +2 more
openaire   +2 more sources

Research on the effect of different test cycles on low temperature emissions and fuel consumption of Light plug-in hybrid cars [PDF]

open access: yesE3S Web of Conferences, 2021
Based on a plug-in hybrid car equipped with a 1.5L turbocharged direct injection gasoline engine, this paper studies the emission and fuel consumption characteristics of the prototype vehicle under three different cycle conditions, WLTC city, WLTC and ...
Yang Fan, Zhong Chongzhi, Li Chun
doaj   +1 more source

An improved correlation to determine minimum miscibility pressure of CO2–oil system

open access: yesGreen Energy & Environment, 2020
An accurate and reliable estimation of minimum miscibility pressure (MMP) of CO2–oil system is a critical task for the design and implementation of CO2 miscible displacement process.
Guangying Chen   +5 more
doaj   +1 more source

Numerical 1-D simulations on Single-Cylinder stationary spark ignition engine using Micro-Emulsions, gasoline, and hydrogen in dual fuel mode

open access: yesCleaner Chemical Engineering, 2022
This work is contributing towards reducing the emissions from stationary spark ignition engine single cylinder by adopting the state of the Art Technology Hydrogen fuel and H2O based Emulsion fuel in dual fuel mode. In addition, comparing its combustion,
Ufaith Qadiri, Akram AlFantazi
doaj   +1 more source

The externalities of solid fuel CO2 emissions on rice production: A time series analysis for Pakistan

open access: yesEconomic Journal of Emerging Markets, 2023
Purpose ― This study examines the externalities of CO2 emissions from solid fuel consumption on rice production in Pakistan using time series data from 1984 to 2021. Methods ― The independent variables include CO2 emissions from solid fuel consumption,
Mansoor Mushtaq   +2 more
doaj   +1 more source

About the emissions of alternative jet fuels [PDF]

open access: yesCEAS Aeronautical Journal, 2016
In the last years, several alternative aviation jet fuels have been approved as a response to worldwide concerns on adverse environmental effects of greenhouse gas emissions. However, comprehensive emissions studies are not part of the approval process. When burning a jet fuel, the exhaust gases are a mixture of gaseous specious including aromatics and
Braun-Unkhoff, Marina   +2 more
openaire   +1 more source

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