Results 41 to 50 of about 13,430,212 (340)

Assessment of energy efficiency and performance in a two-phase anaerobic process for organic matter removal

open access: yesWater Science and Technology, 2021
Energy efficiency (EE) depends mainly on the lower heating values (LHVs) of hydrogen and methane selected from the thermodynamics tables under ideal conditions.
Andrea D. P. Hurtado   +3 more
doaj   +1 more source

Combustion of coal gas fuels in a staged combustor [PDF]

open access: yes, 1982
Gaseous fuels produced from coal resources generally have heating values much lower than natural gas; the low heating value could result in unstable or inefficient combustion. Coal gas fuels may contain ammonia which if oxidized in an uncontrolled manner
Mcvey, J. B.   +3 more
core   +2 more sources

Acid-Catalyzed Wet Torrefaction for Enhancing the Heating Value of Barley Straw

open access: yesEnergies, 2020
In the present study, the possibility of improving the higher heating value (HHV) of lignocellulosic biomass, especially barley straw, was examined. The research deals with the treatment of barley straw by acid-catalyzed wet torrefaction (ACWT), also ...
A. Nazos   +3 more
semanticscholar   +1 more source

Estimation of Fuel Properties for the Heavy Fraction of Biomass Pyrolysis Oil Consisting of Proposed Structures for Pyrolytic Lignin and Humins

open access: yesEnergies
The organic component of biomass pyrolysis oils is composed of a light fraction (C2–C4 volatiles, sugar- and lignin-derived monomers) and a less polar heavy fraction (pyrolytic lignin/humins, greater than approximately 200 g/mol). Importantly, this heavy
Evan Terrell
doaj   +1 more source

Neutrino Heating in an Inhomogeneous Big Bang Nucleosynthesis Model [PDF]

open access: yes, 2001
The effect of the heating of neutrinos by scattering with electrons and positrons and by e-e+ annihilation on nucleosynthesis is calculated for a spherically symmetric baryon inhomogeneous model of the universe.
Lara, J. F.
core   +3 more sources

Density, flash point, viscosity, and heating value of waste cooking biodiesel (B20) with bioadditive essential oil (lemon, lemongrass, eucalyptus)

open access: yesJournal of Physics: Conference Series, 2020
This research is motivated by the decreasing of fossil fuels in the earth while the level of consumption of fossil fuels is getting higher from year to year, so the need for alternative fuels increases, one of which is biodiesel. The existence of studies
A. A. Permanasari   +5 more
semanticscholar   +1 more source

Evaluation of energy properties of torrefied biomass for a given pyrolysis condition by isothermal pyrolysis kinetics

open access: yesMechanical Engineering Journal, 2021
One of the effective solutions to reduce CO2 emission derived from fossil fuels is the suppression of coal consumption in industrial boilers and power plants.
Fumiya MORIYAMA   +3 more
doaj   +1 more source

Effect of heating rate on gas emissions and properties of fired clay bricks and fired clay bricks incorporated with cigarette butts [PDF]

open access: yes, 2015
In general, the firing process of clay bricks generates a range of gas emissions into the atmosphere. At high concentrations, these volatile emissions can be a serious source of environmental pollutions.
Abbas Mohajerani   +26 more
core   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Improving Vegetable Oil Properties by Transforming Fatty Acid Chain Length in Jatropha Oil and Coconut Oil Blends

open access: yesEnergies, 2018
Efforts to improve the physical and chemical properties of vegetable oils as diesel fuels such as viscosity and calorific value are indispensable with the depletion of fossil oil reserves.
Wahyudi   +3 more
doaj   +1 more source

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