Results 11 to 20 of about 422,589 (287)

Free-convection condensation on single horizontal pin-fin tubes [PDF]

open access: yes, 2011
PhDNew experimental data are reported for free-convection condensation of ethylene glycol and R-113 on three-dimensional pin-fin tubes. Effects of pin geometry and tube thermal conductivity (for copper, brass and bronze giving a mean range of 400, 120 ...
Ali, Hafiz-Muhummad
core   +4 more sources

Cycvalone in the synthesis of nitrogen-, oxygen-containing heterocycles [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Серия Химия. Биология. Экология, 2023
Cycvalone is an analogue of curcumin (EE conformation), exhibits a wide range of biological activity (antioxidant, hepatoprotective, membrane stabilizing, anti-ulcer) and is used in medical practice as a choleretic.
Rogov, Danila A.   +1 more
doaj   +1 more source

Study of Condensation Risk in Ecological Blocks with Recycled Wood Aggregate

open access: yesBulletin of the Polytechnic Institute of Jassy: Constructions, Architechture Section, 2021
Concrete is a building material with a continuous demand in the construction industry due to the convenient price-performance ratio. On the other hand, concrete is not an environmentally friendly material. Thus, in order to obtain a sustainable material,
Pruteanu Marian   +4 more
doaj   +1 more source

The Thermal Response of a Packed Bed Thermal Energy Storage System upon Saturated Steam Injection Using Distributed Temperature Sensing

open access: yesEnergies, 2022
The effectiveness of a thermal energy storage (TES) system is typically characterized with the help of thermal stratification or temperature gradients along the direction of heat injection, which is typically the flow direction of heat transfer fluid ...
Zayed Ahmed   +2 more
doaj   +1 more source

1-Tosyl-6-vinyl-4,5,6,7-tetrahydro-1H-benzo [d] imidazole-2-amine

open access: yesMolbank, 2021
The alkene functionalised 2-aminobenzimidazole ring found in terrazoanthine natural products was synthesized in 3 steps from 1,2-epoxy-4-vinylcyclohexane via epoxide ring opening with toluenesulphonamide yielding 2 regioisomeric, separable amino alcohols.
Fiach B. Meany   +2 more
doaj   +1 more source

Effect of Dual Reinforcement on Wear Resistance by Aluminum Compacts Reinforce by SiC, Al2O3 [PDF]

open access: yesEngineering and Technology Journal, 2009
The producing composite materials of dual reinforcement in which the matrix material is aluminum reinforced with two types of ceramic particles : which are Alumina (50μmKeywordscomposite materials; wear test ; Al2O3; SiC ...
Mohammed Waheed, Hassan Abed
doaj   +1 more source

Experimental investigation of condensation heat transfer in microchannels. [PDF]

open access: yes, 2007
PhDThe thesis describes experiments aimed at measurement of heat-transfer coefficients for condensation in a multi micro channel tube. Experiments were performed with steam and R113, fluids chosen to cover a wide range of thermophysical properties, in
Su, Qian
core   +4 more sources

R32 Partial Condensation Inside A Brazed Plate Heat Exchanger [PDF]

open access: yes, 2012
It is well known that when a superheated gas reaches a cold surface, the condensation starts immediately only if the wall temperature is lower than the dew temperature of the refrigerant; in this case, the heat transfer phenomenon can be also affected by
Mancin, Simone   +2 more
core   +2 more sources

Studies on surface condensation for passive safety system in light water reactor: A review [PDF]

open access: yesNuclear Technology and Radiation Protection, 2023
A system with a passive mechanism has been considered to have better trustworthiness because it does not require an external driving force to function.
Susyadi   +3 more
doaj   +1 more source

Condensation of an Azeotropic Mixture inside 2.5 mm ID Minitubes

open access: yesFluids, 2020
The ongoing miniaturization of air conditioning and refrigeration systems, in order to limit, as much as possible, the refrigerant charge, calls for smaller and smaller heat exchangers.
Andrea Diani, Luisa Rossetto
doaj   +1 more source

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