Results 41 to 50 of about 220,900 (271)

Reconciling thermal performance and power-saving performance of counter-flow spray heating towers

open access: yesEnergy Reports, 2021
Heating tower heat pumps are increasingly used in subtropical areas due to their frost-free characteristics. The spray heating tower (SHT) solves the fouling problem suffered by the packing heating tower and ensures thermal performance. However, the heat
Haijiao Cui   +4 more
doaj   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera   +8 more
wiley   +1 more source

Numerical investigation of the two-phase flow behavior inside the effervescent atomizer at high aeration ratios

open access: yesDiscover Applied Sciences
Effervescent atomizers play a crucial role in various industrial applications, where their performance is governed by internal two-phase flow dynamics. Among the different two-phase flow regimes, annular flow is particularly effective in producing fine ...
Z. Alizadeh kaklar, M. R. Ansari
doaj   +1 more source

H2S–CO2 gas separation with ionic liquids on low ratio of H2S/CO2

open access: yesHeliyon, 2021
Acid gas removal, especially H2S and CO2, is an essential process in natural gas processing. In this research, 1-butyl-3-methylimidazolium bromide [bmim][Br] ionic liquid was analyzed as a hydrophobic solvent with has high selectivity to H2S as an ...
Tri Partono Adhi   +6 more
doaj   +1 more source

Mass Transfer Modeling of CO2 Absorption into Blended Aqueous MDEA–PZ Solution [PDF]

open access: yesIranian Journal of Oil & Gas Science and Technology, 2020
In this research, the rate of CO2 absorption into methyl diethanolamine–piperazine (MDEA–PZ) solution was investigated. To model the mass transfer flux in the reactive absorption processes, the dimensionless parameters of the process were obtained using ...
Fahimeh Mirzaei, Ahad Ghaemi
doaj   +1 more source

Gas maldistribution in a fermenter stirred with multiple turbines [PDF]

open access: yes, 2006
The study is focused on modeling of gas maldistribution of aerated liquid systems in a multiple impeller bioreactor. The phenomenon may or may not depend on column design.
Nikov, Iordan   +3 more
core  

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

open access: yesAdvanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Improvement of Mass Transfer Characteristics for the Gas-Liquid System in a Vortex Counterflow Apparatus

open access: yesEnergies
This article aims to increase the intensity of mass transfer between gas and liquid in counterflow gas–liquid flow, one of the key problems in designing mass transfer equipment.
Vsevolod Sklabinskyi   +6 more
doaj   +1 more source

NUMERICAL STUDY OF JUICE CONCENTRATION IN THE CONVECTION APPARATUS WITH SWIRLING HEAT-TRANSFER AGENT FLOW [PDF]

open access: yesТехника и технология пищевых производств, 2016
The paper presents a highly potent vortex apparatus for fruit and vegetable juice concentration in the «gentle» regime ensuring the preservation of biologically active substances and high flavor quality of the product.
Kharkov V.V., Nikolaev A.N
doaj  

Characterization of Aluminized Layers on Inconel‐738 Alloy: Microstructure, Modeling of Aluminizing Kinetics, and Thermal Behavior

open access: yesAdvanced Engineering Materials, EarlyView.
This study explored how effective nickel aluminide coatings are obtained in providing oxidation resistance applied to the Inconel 738 alloy, modeling with diffusion models. In the present study, kinetics and thermal behavior of the Inconel 738 alloy were studied by the low‐temperature thermoreactive aluminizing process, which was carried out at 625°C ...
Gozde Celebi Efe   +4 more
wiley   +1 more source

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