Charge-Transfer-Induced Noncoalescence and Chain Formation of Free Droplets under a Pulsed DC Electric Field

Langmuir : the ACS Journal of Surfaces and Colloids
Xin HuangDonghai Yang

Abstract

Electrocoalescence technology is an important method for the demulsification of crude oil emulsion, but its development is restricted by the short circuit caused by droplet chain formation. To reveal the formation mechanism of droplet chains, the electrocoalescence behaviors of two droplets and droplet clusters under pulsed direct current (DC) electric fields are experimentally studied. The two droplets usually successively undergo complete coalescence, partial coalescence, and noncoalescence as the electric field strength increases. The critical electric field strengths for complete coalescence under pulsed DC electric fields with different frequencies are obtained. The effects of the electric field waveform and frequency on the noncoalescence characteristics of two droplets and the stability of droplet chains are explored. The droplet chains under a high-frequency electric field are more stable and longer than those under a low-frequency electric field due to the reduction of the movement distance and the generation of daughter droplets from tip streaming. The reversal of the composition of electric forces due to charge transfer is the fundamental mechanism of noncoalescence of two droplets and chain formation in the emulsion...Continue Reading

References

Sep 18, 2009·Nature·W D RistenpartH A Stone
Nov 13, 2009·Physical Review Letters·James C BirdHoward A Stone
Apr 20, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Ryan Mead-HunterBenjamin J Mullins
Oct 10, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Ayoung LeeKyung Hyun Ahn
Jun 19, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Bing-Bing WangTian-Hu Wang
Jul 4, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Haipeng YanDonghai Yang
Mar 18, 2016·Physical Review. E·Jiakai LuCarlos M Corvalan
Dec 8, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Sang Min ParkDong Sung Kim
Dec 14, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·A SrivastavaA K Sen
Jun 2, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Aref GhafouriPaul R Chiarot
Jul 4, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Boping Ren, Yong Kang
Apr 19, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Anjana KothandaramanYiannis Ventikos

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.