Heat transfer from a grid jet in a large fluidized bed
- 1 February 1975
- journal article
- research article
- Published by Wiley in The Canadian Journal of Chemical Engineering
- Vol. 53 (1) , 25-30
- https://doi.org/10.1002/cjce.5450530104
Abstract
Heat transfer from a vertical grid jet within a 2 ft diameter and 4 ft deep fluidized bed of cracking catalyst was studied. The test nozzle diameter was varied from ¼ to 1 in. and the nozzle velocity from 50 to 250 ft /sec which is within the range of industrial practice. The axial temperature data have been related to a Froude, a Reynolds and a Nozzle number:In (δT/δTo) = –58.1 Fr−0.562 No1.08 Re−0.112A simple jet quenching model yielded heat transfer coefficients between the fluid bed and grid jet which ranged from 300 to 1200 Btu/ft2 hr.o F.Keywords
This publication has 4 references indexed in Scilit:
- Further studies on momentum dissipation of grid jets in a gas fluidized bedThe Canadian Journal of Chemical Engineering, 1971
- Jet momentum dissipation at a grid of a large gas fluidized bedThe Canadian Journal of Chemical Engineering, 1970
- Abschrecken eines heissen Gasstrahls in einer GaswirbelschichtChemical Engineering Science, 1965
- Quenching the plasma reaction by means of the fluidized bedAIChE Journal, 1963