Small scale experimental study of vaporization rates of liquid nitrogen released on ice

Nirupama Gopalaswami, Luc Vechot, Tomasz Olewski, M. Sam Mannan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

One of the LNG accident scenarios is the collision of an LNG carrier on an iceberg while transporting on the sea. A collision can result in damages to the vessel and lead to the leakage of contents on ice or an ice-water mixture. When cryogenic liquid comes in contact with ice, it undergoes rapid vaporization and boiling due to the difference in temperature between the ice and cryogenic liquid. This process is different from the heat transfer between water and cryogenic liquid as ice is a solid and thus heat transport to the pool occurs through the conduction. In this paper, the heat transfer phenomena between ice and cryogenic liquid hasphenomena between ice and cryogenic liquid have been studied and the boil-off rates have been quantified. A small scale experiment was conducted to investigate the heat transfer phenomenon of cryogenics released on ice. The amount of cryogenic liquid spilled was varied to determine its effect on vaporization rates and the temperature of ice was monitored. Additionally the vaporization rates were determined by direct measurement of the mass loss during the experiment. As expected, the vaporization rates were found to be a function of ice temperature and w ere f ound to be independent of time for long duration r eleas es. The one dimensional conduction model was validated against experimental results. The predicted temperatures and heat flux were found to be in good agreement with the experimental data.

Original languageEnglish
Title of host publication16th Process Plant Safety Symposium 2014, PPSS 2014 - Topical Conference at the 2014 AIChE Spring Meeting and 10th Global Congress on Process Safety
PublisherAIChE
Pages494-506
Number of pages13
ISBN (Electronic)9781634391580
Publication statusPublished - 2014
Event16th Process Plant Safety Symposium 2014, PPSS 2014 - Topical Conference at the 2014 AIChE Spring Meeting and 10th Global Congress on Process Safety - New Orleans, United States
Duration: 30 Mar 20143 Apr 2014

Other

Other16th Process Plant Safety Symposium 2014, PPSS 2014 - Topical Conference at the 2014 AIChE Spring Meeting and 10th Global Congress on Process Safety
CountryUnited States
CityNew Orleans
Period30/3/143/4/14

Fingerprint

Liquid nitrogen
Vaporization
Ice
Cryogenic liquids
Heat transfer
Liquefied natural gas
Temperature
Cryogenics
Contacts (fluid mechanics)
Boiling liquids
Heat flux
Water
Accidents
Experiments

Keywords

  • Conduction
  • Ice
  • Liquid nitrogen
  • Source term
  • Vaporization

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Safety, Risk, Reliability and Quality

Cite this

Gopalaswami, N., Vechot, L., Olewski, T., & Mannan, M. S. (2014). Small scale experimental study of vaporization rates of liquid nitrogen released on ice. In 16th Process Plant Safety Symposium 2014, PPSS 2014 - Topical Conference at the 2014 AIChE Spring Meeting and 10th Global Congress on Process Safety (pp. 494-506). AIChE.

Small scale experimental study of vaporization rates of liquid nitrogen released on ice. / Gopalaswami, Nirupama; Vechot, Luc; Olewski, Tomasz; Mannan, M. Sam.

16th Process Plant Safety Symposium 2014, PPSS 2014 - Topical Conference at the 2014 AIChE Spring Meeting and 10th Global Congress on Process Safety. AIChE, 2014. p. 494-506.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gopalaswami, N, Vechot, L, Olewski, T & Mannan, MS 2014, Small scale experimental study of vaporization rates of liquid nitrogen released on ice. in 16th Process Plant Safety Symposium 2014, PPSS 2014 - Topical Conference at the 2014 AIChE Spring Meeting and 10th Global Congress on Process Safety. AIChE, pp. 494-506, 16th Process Plant Safety Symposium 2014, PPSS 2014 - Topical Conference at the 2014 AIChE Spring Meeting and 10th Global Congress on Process Safety, New Orleans, United States, 30/3/14.
Gopalaswami N, Vechot L, Olewski T, Mannan MS. Small scale experimental study of vaporization rates of liquid nitrogen released on ice. In 16th Process Plant Safety Symposium 2014, PPSS 2014 - Topical Conference at the 2014 AIChE Spring Meeting and 10th Global Congress on Process Safety. AIChE. 2014. p. 494-506
Gopalaswami, Nirupama ; Vechot, Luc ; Olewski, Tomasz ; Mannan, M. Sam. / Small scale experimental study of vaporization rates of liquid nitrogen released on ice. 16th Process Plant Safety Symposium 2014, PPSS 2014 - Topical Conference at the 2014 AIChE Spring Meeting and 10th Global Congress on Process Safety. AIChE, 2014. pp. 494-506
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