Results 21 to 30 of about 4,256 (162)

Design and experimental study of pilot scale throat-less downdraft gasifier fed by rice husk and wood sawdust

open access: yesInternational Journal of Sustainable Energy, 2018
In this work, pilot scale throat-less downdraft gasifier is fabricated and tested on rice husk and blend of rice husk-sawdust. The test aims to investigate effect of equivalence ratio on temperature profile, propagation front (flame propagation rate, bed
A. A. P. Susastriawan   +2 more
doaj   +1 more source

Effects of the large-scale circulation on temperature and water vapor distributions in the Π Chamber [PDF]

open access: yesAtmospheric Measurement Techniques, 2021
Microphysical processes are important for the development of clouds and thus Earth's climate. For example, turbulent fluctuations in the water vapor mixing ratio, r, and temperature, T, cause fluctuations in the saturation ratio, S.
J. C. Anderson   +4 more
doaj   +1 more source

Review on synthesis gas production in a downdraft biomass gasifier for use in internal combustion engines in Nigeria

open access: yesJournal of Applied Sciences and Environmental Management, 2018
This paper presents a review on the possibility and potential of synthesis gas production and its utilization as an alternative fuel for internal combustion engines (ICE) in Nigeria.
P.E. Akhator, A.I. Obanor
doaj   +1 more source

Analysis of Severe Elevated Thunderstorms over Frontal Surfaces Using DCIN and DCAPE

open access: yesAtmosphere, 2019
A 10-year study of elevated severe thunderstorms was performed using The National Centers for Environmental Information Storm Events Database. A total of 80 elevated thunderstorm cases were identified, verified, and divided into “Prolific” ...
Patrick Market   +3 more
doaj   +1 more source

Biomass Gasification in a Downdraft Gasifier with In-situ CO2 Capture: a Pyrolysis, Oxidation and Reduction Staged Model

open access: yesChemical Engineering Transactions, 2020
Biomass gasification with in-situ CO2 capture, using calcium oxide as sorbent, has attracted increasing interest as a renewable source of high value products through the production of H2 rich syngas, while simultaneously presenting considerable potential
Elena Catalanotti   +3 more
doaj   +1 more source

Design and experimental tests of an Imbert type downdraft gasifier prototype and clean-up system for small-scale biomass-based power generation

open access: yesRenewable Energy and Environmental Sustainability, 2022
This paper addresses the design, development and experimental tests of a prototype of fuel gas generation system based on biomass gasification for small-scale applications, around 5 kW. It comprises the small scale downdraft gasifier and the gas cleaning
Mendonça Miguel   +4 more
doaj   +1 more source

Temporal Variation of the Pressure from a Steady Impinging Jet Model of Dry Microburst-Like Wind Using URANS

open access: yesComputation, 2018
The objective of this study is to investigate the temporal behavior of the pressure field of a stationary dry microburst-like wind phenomenon utilizing Unsteady Reynolds-averaged Navier-Stokes (URANS) numerical simulations.
Martin Skote   +2 more
doaj   +1 more source

Removal of Cool Water Vapor Generated from an Ultrasonic Air Humidifier by a Novel Downdraft Table

open access: yes, 2022
Without downdraft, plumes of water vapor arced over and beyond the perimeter of the downdraft table. With downdraft, the water vapor plumes, reversed their direction toward the center of the table and the height of the water vapor plumes decreased ...
W. Travis Goldsmith (12645688)   +2 more
core   +1 more source

Downdraft influences on the differences of PM2.5 concentration: insights from a mega haze evolution in the winter of northern China

open access: yesEnvironmental Research Letters, 2023
A significant haze event occurred in northern China from 16 to 21 November 2022. This study analyzed the haze spatial evolution, and meteorological influences by integrating ground and satellite measurements.
Zhenyi Chen   +7 more
doaj   +1 more source

3D Corona Discharge Model and Its Use in the Presence of Wind During a Thunderstorm

open access: yesFrontiers in Environmental Science, 2022
In this study, the authors developed a three-dimensional (3D) numerical model for the diffusion of positive corona charges based on a 2D model with a uniform grid to explore the characteristics of corona discharge at a building tip during a thunderstorm ...
Xiufeng Guo   +6 more
doaj   +1 more source

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