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Prandtl number

2009-03-07View Original

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Is there any place where I can find the Prandtl numbers for common gases and liquids? I also saw some calculation formulas, but my results never seem to be correct. Could any student help me calculate the Plante number for saturated water vapor at 160 degrees? ! ! ! ! ! ! ! ! ! ! ! I calculated that it’s only in the 0.0 range. Thank you. I’m in a hurry :(
Reply #22009-03-07
Prandtl number 12?1: Prandtl number of inorganic gases 676; 12?2: Prandtl numbers of some gases 677; 12?3: Prandtl number of superheated water vapor 678; 12?4: Prandtl numbers of some liquids 679; 12?5: Prandtl number of metal liquids 680; 12?6: Prandtl number of solutions such as saturated inorganic acids 681; 12?7: Prandtl number of gases such as alkanes 682; 12?8: Prandtl number of saturated alkane liquids (I) 683; 12?9: Prandtl number of saturated alkane liquids (II) 684; 12?10: Prandtl number of saturated fluorocarbon liquids 685; 12?11: Prandtl number of saturated olefins 686; 12?12: Prandtl number of benzene and its compounds 687; 12?13: Prandtl number of amine and nitrile liquids 688; 12?14: Prandtl number of alcohol liquids 689; 12?15: Prandtl number of petroleum fractions 690; 12?16: Prandtl number of saturated oils 691. I’m looking for this online; I’m not sure if it’s what you need.
Reply #32009-03-07
The Plante number for saturated water vapor at 160 degrees = 1.078243, as determined using the IAPWS-IF97 steam property calculation software (V4.0).
Reply #42009-03-07
Thank you for the information from user 2 above; I’ll check the data to verify it: loveliness:
Reply #52010-01-19
Supporting............
Reply #62010-01-19
For saturated water vapor at 160°, the specific heat is 1917.729 J/kg.°C, the viscosity is 0.0147836 cP, and the thermal conductivity is 0.02969732 W/m.°C. The Prandtl number is calculated as Pr = 1917.729 * 0.0147836 / 1000 / 0.02969732 = 0.955, which is roughly consistent with the values I obtained from other sources.

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