Using Table 1.4 as a guide, prepare a similar table showing the order of magnitudes of the thermal resistances of a unit area for convection between a surface and various fluids.GIVENTable 1.4??The order of magnitude of convective heat transfer coefficient ( hc)

Transcribed Image Text:

Order of magnitude of convection heat transfer coefficients h. Convection Heat Transfer Coefficient Btu/h ft? °F 1-5 Fluid W/m? K Air, free convection Superheated steam or air, forced convection Oil, forced convection 6-30 30-300 60-1,800 5-50 10-300 Water, forced convection 300-18,000 3,000-60,000 6,000-120,000 50-3,000 Water, boiling Steam, condensing 500-10,000 1,000-20,000