Results 1 to 10 of about 218,527 (181)

Comparative 3-E (Energy, Exergy & Environmental) Analysis of Oxy-Coal and Air-Coal Combustion based 500 MWe Supercritical Steam Power Plants with CO2 Capture [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2020
The comparative performance study is carried out for 500 MW Supercritical (SupC) Oxy-Coal Combustion (OCC) and Air-Coal Combustion (ACC) power plants with membrane-based CO2 capture at the fixed furnace temperature.
Soumya Jyoti Chatterjee   +2 more
doaj   +1 more source

Overview of Common Thermophysical Property Modelling Approaches for Cryogenic Fluid Simulations at Supercritical Conditions

open access: yesEnergies, 2023
Computational Fluid Dynamics (CFD) frameworks of supercritical cryogenic fluids need to employ Real Fluid models such as cubic Equations of State (EoS) to account for thermal and inertial driven mechanisms of fluid evolution and disintegration.
Jaya Vignesh Madana Gopal   +3 more
doaj   +1 more source

LOW-TEMPERATURE SUPERCRITICAL CONVERSION OF KUKERSITE OIL SHALE; 171–178 [PDF]

open access: yesOil Shale, 2019
The thermal decomposition of Estonian Kukersite oil shale under supercritical conditions was carried out using a continuous flow tubular reactor. The effects of the retorting times of 0, 30, 60 and 120 minutes on the yield of thermobitumen (TB), solid ...
MIHHAIL FOMITŠOV
doaj   +1 more source

Limits of Fluid Modeling for High Pressure Flow Simulations

open access: yesAerospace, 2022
Flows in liquid propellant rocket engines (LRE) are characterized by high pressures and extreme temperature ranges, resulting in complex fluid behavior that requires elaborate thermo-physical models.
Nelson P. Longmire, Daniel T. Banuti
doaj   +1 more source

Supercritical Fluid Chromatography with Photodiode Array Detection in the Determination of Fat-Soluble Vitamins in Hemp Seed Oil and Waste Fish Oil

open access: yesMolecules, 2018
In the presented study for the first time a new, optimized, fast SFC (supercritical fluid chromatography) method was applied to separate in one run fat-soluble vitamins from waste fish oil, including cis-and trans-retinyl palmitate, cis- and trans ...
Katarzyna Tyśkiewicz   +5 more
doaj   +1 more source

Supercritical Elliptic Equations [PDF]

open access: yesAdvanced Nonlinear Studies, 2012
Abstract For an elliptic model equation with supercritical power non-linearity we give a complete description of radial solutions and discuss self-similar blow-up solutions.
Rupflin, M, Struwe, M
openaire   +3 more sources

Supercritical Carbon Dioxide (scCO2) Extraction of Phenolic Compounds from Lavender (Lavandula angustifolia) Flowers: A Box-Behnken Experimental Optimization

open access: yesMolecules, 2019
Due to their numerous health benefits associated with various diseases and anti-oxidation properties, the phenolic compounds collectively referred to as phytochemicals have attracted a lot of interest, however, a single extraction method for polyphenols ...
Katarzyna Tyśkiewicz   +2 more
doaj   +1 more source

Supercriticality of a Class of Critical String Cosmological Solutions [PDF]

open access: yes, 2008
For a class of Friedmann-Robertson-Walker type string solutions with compact hyperbolic spatial slices formulated in critical dimension, we find the world sheet conformal field theory which involves the linear dilaton and Wess-Zumino-Witten type model ...
Nanopoulos, Dimitri V., Xie, Dan
core   +3 more sources

Essential Oils from Humulus Lupulus scCO2 Extract by Hydrodistillation and Microwave-Assisted Hydrodistillation

open access: yesMolecules, 2018
Two different extraction methods were used for a comparative study of essential oils obtained from the Humulus lupulus scCO2 (sc-supercritical) extract: microwave-assisted hydrodistillation (MAHD) and conventional hydrodistillation (HD). As a result, the
Katarzyna Tyśkiewicz   +4 more
doaj   +1 more source

The Application of Supercritical Fluid Extraction in Phenolic Compounds Isolation from Natural Plant Materials

open access: yesMolecules, 2018
The separation of phenolic compounds by supercritical fluid extraction has been widely studied throughout the last two decades. This is evidenced by a number of publications and articles. Supercritical fluid extraction (SFE) has become thus the effective
Katarzyna Tyśkiewicz   +2 more
doaj   +1 more source

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