Results 21 to 30 of about 785,332 (278)

Numerical Analysis of Flow and Heat Transfer Characteristics of CO2 at Vapour and Supercritical Phases in Micro-Channels

open access: yesMATEC Web of Conferences, 2016
Supercritical carbon dioxide (CO2) has special thermal properties with better heat transfer and flow characteristics. Due to this reason, supercritical CO2 is being used recently in air-condition and refrigeration systems to replace non environmental ...
Rao N.T.   +3 more
doaj   +1 more source

Microencapsulation and Nanoencapsulation Using Supercritical Fluid (SCF) Techniques

open access: yesPharmaceutics, 2019
The unique properties of supercritical fluids, in particular supercritical carbon dioxide (CO2), provide numerous opportunities for the development of processes for pharmaceutical applications.
Soon Hong Soh, Lai Yeng Lee
doaj   +1 more source

Supercritical CO2 as the carbon source and reaction medium for methanethiol synthesis in primordial subseafloor [PDF]

open access: yes, 2023
Abiotic synthesis of methanethiol through CO2 reduction is a presumptive initiation reaction of protometabolism in primordial ocean hydrothermal systems.
Ken, Takai   +5 more
core   +2 more sources

Research on heat transfer characteristics of serpentine tube [PDF]

open access: yesJournal of Hebei University of Science and Technology, 2023
In order to reduce energy consumption and improve the efficiency of CO2 heat pumps, a numerical simulation method was used to study the heat transfer characteristics of supercritical CO2 in serpentine tube air cooler based on Fluent software.
Haiting CUI, Chao WANG, Chen WANG
doaj   +1 more source

Supercritical CO2 power cycle

open access: yesPaliva, 2023
The article is focused on summarizing the issue of energy circuits working with supercritical carbon dioxide sCO2. Carbon dioxide is currently coming to the forefront of many research institutions with regard to its possible use in its supercritical conditions, thanks to which higher efficiency and compactness of equipment can be achieved compared to ...
Eliška Purkarová   +4 more
openaire   +1 more source

An Experiment on Flashing-Spray Jet Characteristics of Supercritical CO2 from Various Orifice Geometries

open access: yesFrontiers in Energy Research, 2021
Supercritical CO2 pipelines usually are used to link the CO2 capture system to the geological storage. There are severe hazards once the asphyxiating gas leaks from the long-distance pipeline.
Lin Teng   +4 more
doaj   +1 more source

Analysis of partial heating supercritical CO2 cycles bottoming small-power gas turbine units

open access: yesEnergy Conversion and Management: X, 2023
Supercritical CO2 power systems are investigated as bottoming cycles of combustion turbines, limiting the power output of the topping cycle to the range of 5–10 MW.
Antonio Giuffrida, Elham Akramieh
doaj   +1 more source

Characterizing the Dissolution Rate of CO2-Brine in Porous Media under Gaseous and Supercritical Conditions

open access: yesApplied Sciences, 2017
The CO2-brine dissolution homogenizes the distribution of residual CO2 and reduces the leakage risk in the saline aquifer. As a key parameter to immobilize the free CO2, the dissolution rate of CO2-brine could be accelerated through mechanisms like ...
Bohao Wu   +8 more
doaj   +1 more source

Numerical study of non-uniform cooling heat transfer characteristics of supercritical CO2 in horizontal air-cooled finned tube

open access: yesCase Studies in Thermal Engineering, 2022
This study numerically investigated the heat transfer characteristics of the supercritical CO2 under the non-uniform cooling condition. The non-uniformity of heat flux distribution on a typical air-cooled exchanger is estimated at first and the heat ...
Jinxiao Zhou   +5 more
doaj   +1 more source

Influence of pretreatments for extraction of lipids from yeast by using supercritical carbon dioxide and ethanol as cosolvent [PDF]

open access: yes, 2011
Saccharomyces cerevisiae is one of the most studied and industrially exploited yeast. It is a non-oleaginous yeast whose lipids are mainly phospholipids.
Camy, S.   +11 more
core   +1 more source

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