Results 121 to 130 of about 22,691 (291)

Developed Correlations for Prediction of The Enthalpies of Saturated Vapor Liquid Coexisting Phases

open access: yesمجلة النهرين للعلوم الهندسية, 2010
In this study a new criteria is adopted by the use of Rectilinear Diameter principle to express the saturated vapor and liquid enthalpies at the coexisting phases for pure substances and mixtures, this requires another relation that used to calculate ...
Mahmoud Omar Abdullah   +1 more
doaj  

Specific cooling capacity of liquid nitrogen [PDF]

open access: yes
The assumed cooling process and the method used to calculate the specific cooling capacity of liquid nitrogen are described, and the simple equation fitted to the calculated specific cooling capacity data, together with the graphical form calculated ...
Adcock, J. B., Kilgore, R. A.
core   +1 more source

Transients influencing rocket engine ignition and popping Interim report [PDF]

open access: yes
Engine design and operating parameters studied for effects on rocket engine ignition and ...
Breen, B. P.   +3 more
core   +1 more source

Dynamic Covalent Radical Recombination for the Assembly of Tuneable Responsive Porous Organic Cages

open access: yesAngewandte Chemie International Edition, EarlyView.
Dynamic covalent chemistry (DCC) based on reversible radical recombination enables the assembly of responsive, C─C‐linked organic cages. Substituent‐controlled aryldicyanomethyl radicals form discrete, porous architectures with tuneable topology of Tri2 and Tri4 cages, gas selectivity, chromism, and self‐healing behaviour, establishing radical‐based ...
Yannic Hartmann   +6 more
wiley   +1 more source

Droplet combustion at reduced gravity [PDF]

open access: yes
The current work involves theoretical analyses of the effects identified, experiments in the NASA Lewis drop towers performed in the middeck areas of the Space Shuttle.
Dryer, F. L., Williams, F. A.
core   +1 more source

Compositional Characterization, Quality Parameters, and Physicochemical and Bioactive Properties of Pequi (Caryocar brasiliense) Oils From Xingu and Cerrado in Mato Grosso, Brazil

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
Cerrado oil is richer in MUFA and antioxidant compounds, while Xingu oil shows higher SFA and enhanced oxidative stability, reinforcing the potential of pequi oil as a sustainable bioactive ingredient. ABSTRACT Pequi (Caryocar brasiliense) is a native fruit widely distributed in Brazilian biomes, specially in Cerrado, known for its high oil yield and ...
Dhayna O. Sobral   +8 more
wiley   +1 more source

Design and Optimization of a Novel Kalina‐Organic Rankine Cycle System Based on LNG Cold Energy Utilization

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study proposes a novel integrated system (SDKC‐DORC) that combines a split‐flow dual‐pressure Kalina cycle with a secondary organic Rankine cycle for the synergistic utilization of solar energy and liquefied natural gas (LNG) cold energy.
Ke Xiao   +6 more
wiley   +1 more source

Assessment of Hydrate Prediction Software for MEG–Water–NaCl Systems

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study evaluates the performance of three industry‐standard simulation tools—Aspen HYSYS (V14), Multiflash (V7.5), and OLGA (V2024.1)—by comparing predicted hydrate dissociation temperatures with experimental data obtained from a PVT sapphire cell.
Carys M. Bloomfield   +2 more
wiley   +1 more source

Sodium sulfate: Vaporization thermodynamics and role in corrosive flames [PDF]

open access: yes
Gaseous species over liquid Na2SO4 were identified by the technique of molecular beam mass spectrometry. The heat and entropy of vaporization of the Na2SO4 molecule were measured directly.
Kohl, F. J.
core   +1 more source

Thermal Calculations for Co‐Firing of Hydrogen/Ammonia and Coal in 660‐MW Coal‐Fired Boilers

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT To achieve a clean energy transition under the dual carbon goals, blending hydrogen/ammonia into pulverized coal boilers represents a key technological pathway. Different hydrogen/ammonia co‐firing ratios (5%–50%) are investigated for their impact on the thermodynamic characteristics of 660‐MW supercritical boiler at 100% and 20% boiler ...
Yaodong Da   +7 more
wiley   +1 more source

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