Prandti number

Tables 2,3, and 4 outline many of the physical and thermodynamic properties ofpara- and normal hydrogen in the sohd, hquid, and gaseous states, respectively. Extensive tabulations of all the thermodynamic and transport properties hsted in these tables from the triple point to 3000 K and at 0.01—100 MPa (1—14,500 psi) are available (5,39). Additional properties, including accommodation coefficients, thermal diffusivity, virial coefficients, index of refraction, Joule-Thorns on coefficients, Prandti numbers, vapor pressures, infrared absorption, and heat transfer and thermal transpiration parameters are also available (5,40). Thermodynamic properties for hydrogen at 300—20,000 K and 10 Pa to 10.4 MPa (lO " -103 atm) (41) and transport properties at 1,000—30,000 K and 0.1—3.0 MPa (1—30 atm) (42) have been compiled. Enthalpy—entropy tabulations for hydrogen over the range 3—100,000 K and 0.001—101.3 MPa (0.01—1000 atm) have been made (43). Many physical properties for the other isotopes of hydrogen (deuterium and tritium) have also been compiled (44).

If a heat transfer correlation exists for a given system and geometry, the mass transfer correlation may be formd by replacing the Nusselt nmnber by the Sherwood number and the Prandti number by the Schmidt nmnber in the existing heat transfer correlation. 

Property a. Thermal conductivity b. Accommodation coefficient c. Thermal contact resistance d. Thermal diffusivity e. Specific heat f. Viscosity g. Emittance h. Reflectance i. Absorptance j. Transmittance k. ratio i. Prandti number m. Diffusion coefficient n. Thermal linear expansion coefficient o. Thermal volumetric expansion coefficient p. Surface tension... 

Tn Section 15.5.4 we consider the analogy between heat and mass transfer. The dimensionless group for heat transfer analogous to Sc is the Prandti number Pr, which is the ratio of momentum diffusivity to thermal diffusivity. 

Convective Heat Transfer in Microchanneis, Tabie 4 Nusseit numbers Nuj for iaminar fuiiy deveioped fiow as a function of the Knudsen number and the Prandti number for Br = 0 and Br = 0.01 for the T boundary condition... 

Convective Heat Transfer In Microchanneis, Table 10 Nusseit numbers Nuh2 for rarefied gases in iaminar tuiiy deveioped fiow in a rectanguiar microchannei w/ith four sides heated as a function of the Knudsen number, of the Prandti number and of the aspect ratio S for the H2 boundary condition... 

Substituting vaiues of Reynoids number and Prandti number in tube side fiim heat transfer coefficient, h [6]... 

Taylor, M. F. et al., Internal forced convection to low-PrandtI-number gas mixtures . International Journal of Heat and Mass Transfer, Vol. 31, pp. 13 - 25,1988. 

McEligot, D. M. et al. Convective heat transfer and pressure drop in low-PrandtI-number gas mixtures" Idaho National Laboratory. DOE Office of Naval Reactors Contract DE-AC07-05ID14517, September 26, 2005. 

---