Understanding interfacial behaviour during boiling of nitrogen from liquid-liquid contact plane

Kumar, Rupak; Rohilla, Lokesh; Das, Arup Kumar

doi:10.1016/j.ijheatmasstransfer.2020.120661

Cited by 5 publications

(2 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Results showed the effect of electric fields on the nucleate boiling heat transfer and briefly described the nature of liquid nitrogen film boiling. Kumar et al 26 studied the interfacial behavior during the boiling of liquid nitrogen on a liquid−liquid contact plane. Boiling of liquid nitrogen spillage on water was emphasized in that study.…”

Section: ■ Introductionmentioning

confidence: 99%

Study of Cryogenic Film Boiling in the Presence of External Electric Field Using a Variant of Volume of Fluid-Based Interface Tracking Algorithm

Kumar

Hens

Lahiri

et al. 2022

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The study of film boiling of cryogenic fluids has become a topic of interest due to its applications in several areas, including electronic cooling and space vehicles. In this paper, numerical simulations were conducted to investigate the film boiling of liquid nitrogen using a variant of the volume of fluid (VOF)-based algorithm. The effects of wall superheats and electric fields on the bubble dynamics during film boiling at normal atmospheric pressure and near-critical conditions were investigated. It was observed that bubble formation during film boiling of liquid nitrogen at lower wall superheats was governed by Rayleigh−Taylor instability. However, at higher wall superheats, bubble spacing decreased with the appearance of additional bubbles. The average heat transfer rate increased with an increasing wall superheat. The electric field significantly influences the film boiling up to a specific limit of wall superheat. At a higher wall superheat, the influence of the electric field was suppressed by the enhanced thermal effect. It was observed that the impact of the electric field on film boiling is highly dependent on the dielectric permittivity difference between the liquid and vapor phases. Faster bubble detachment and reduced bubble spacing were noticed in the presence of an applied external electric field.

show abstract

Section: ■ Introductionmentioning

confidence: 99%

Study of Cryogenic Film Boiling in the Presence of External Electric Field Using a Variant of Volume of Fluid-Based Interface Tracking Algorithm

Kumar

Hens

Lahiri

et al. 2022

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…Numerous studies have been carried out to investigate the risks associated with the spillage of liquefied natural gas. Most of these studies have focused on the behaviour of LNG when spilt on the ground or water, such as rapid phase transition (RPT), deflagration, detonation and subsequent vapour cloud fire or pool fire (Drake et al 1975;Dincer et al 1977;Georgakis et al 1979;Briscoe and Shaw 1980;Opschoor 1980;Ermak et al 1982;Goldwire et al 1983;McRae et al 1984;Morgan et al 1984;Rodean et al 1984;Gavelli et al 2008;Sun et al 2013;Sun et al 2014;Sun et al 2015;Zhang et al 2015;Sun et al 2017;Horvat 2018;Kumar et al 2021). On this account, knowledge about the structural performance of steel members subject to the spillage of cryogenic liquids is limited.…”

Section: Introductionmentioning

confidence: 99%

Thermal analysis of marine structural steel EH36 subject to non-spreading cryogenic spills. Part I: experimental study

Nam

Mokhtari

Amdahl

2021

Ships and Offshore Structures

View full text Add to dashboard Cite

Liquefied Natural Gas (LNG) spills may cause steel to embrittle, leading to the brittle fracture of marine structures due to the cryogenic temperatures. For the integrity assessment of marine steel structures in the event of an LNG spill, first and foremost, an accurate heat transfer analysis is required. This study presents an experimental set-up that allows for thermal-structural analysis of steel structures subject to non-spreading cryogenic spills. A local, non-spreading cryogenic spill was replicated by building a liquid nitrogen (LN 2 ) pool at the central zone of an EH36 steel plate under tensile loading. Six pool boiling tests were conducted on six different specimens. Temperature histories recorded by nine thermocouples are presented and discussed as well as the effect of surface roughness on cooling rates and boiling regimes. Numerical simulations of the experiments, discussed in Part II of this study, resulted in a heat flux curve for EH36 steel-LN 2 pool boiling.

show abstract

Numerical study of boiling of liquid nitrogen at solid and liquid contact planes

Kumar

Das

2022

International Journal of Heat and Mass Transfer

Self Cite

View full text Add to dashboard Cite

Understanding interfacial behaviour during boiling of nitrogen from liquid-liquid contact plane

Cited by 5 publications

References 19 publications

Study of Cryogenic Film Boiling in the Presence of External Electric Field Using a Variant of Volume of Fluid-Based Interface Tracking Algorithm

Study of Cryogenic Film Boiling in the Presence of External Electric Field Using a Variant of Volume of Fluid-Based Interface Tracking Algorithm

Thermal analysis of marine structural steel EH36 subject to non-spreading cryogenic spills. Part I: experimental study

Numerical study of boiling of liquid nitrogen at solid and liquid contact planes

Contact Info

Product

Resources

About