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FILM BOILING CHARACTERISTICS OF LIQUID NITROGEN SPRAYS ON A HEATED PLATE.

Author(s) : AWONORIN S. O.

Type of article: Article

Summary

THE RATES OF HEATTRANSFER BETWEEN A HEATED PLATE AND A SPRAY OF SATURATED LIQUID NITROGEN ARE MEASURED AT TEMPERATURE DIFFERENCES AND SPRAY PRESSURES RANGING FROM 250 TO 450 K AND 0.2 TO 1.2 MEGAPASCAL, RESPECTIVELY. THE ANALYSIS OF HEAT TRANSFER DATA SHOW THAT THE MEAN DROPLET SIZE WITHIN A SPRAY, THE MEAN TEMPERATURE DIFFERENCE AND THE LOCAL MASS VELOCITY OF THE SPRAY ARE THE MOST SIGNIFICANT VARIABLES. A CORRELATING EQUATION BASED ON DIMENSIONLESS GROUPS IS PROPOSED. IT IS POSSIBLE TODETERMINE THE EFFECTS OF SPRAY MEAN VELOCITY, MEAN SPRAY SIZE AND MEAN TEMPERATURE DIFFERENCE ON THE AVERAGE HEAT TRANSFER COEFFICIENT BETWEEN THE SPRAYS AND THE PLATE.

Details

  • Original title: FILM BOILING CHARACTERISTICS OF LIQUID NITROGEN SPRAYS ON A HEATED PLATE.
  • Record ID : 1990-0542
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 32 - n. 10
  • Publication date: 1989

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