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A rectangular tube (remember hydraulic diameter) of sides 25mm and 40mm. If air RT passes through the tube at 0.05 m^3/s, what is the convection coefficient inside the tube? The inside of the tube is held at 200 celsius. Note- RT is 25 celsius

A rectangular tube (remember hydraulic diameter) of sides 25mm and 40mm. If air RT passes through the tube at 0.05 m^3/s, what is the convection coefficient inside the tube? The inside of the tube is held at 200 celsius. Note- RT is 25 celsius

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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A rectangular tube (remember hydraulic diameter) of sides 25mm and 40mm. If air RT passes through the tube at 0.05 m^3/s, what is the convection coefficient inside the tube? The inside of the tube is held at 200 celsius.

Note- RT is 25 celsius 

 

Boundary Condition Laminar or Turbulent Nusselt Equation Uniform Temperature Laminar Nu = 0.664Ref5p Nu = 0.037Ref"p Nu = 0.453R€25P;/3 Uniform Temperature Turbulent Uniform Heat Flux Laminar Uniform Heat Flux Turbulent Nu = 0.038 Rep/3 Reynold's Number Ranges: Re <1x 105 - Laminar Re 23 x 106 - Turbulent selt Correlations for Forced Convection over circular and non-circular cylinders in cross-flow. Shape Fluid Range of Re Nusselt Number Cylinder Gas or Liquid 0.4-4 Nu = 0.989 Re"p 4-40 Nu = 0.911 Resp7 40-4,000 Nu = 0.9683 Re 46p 4,000 - 40,000 Nu = 0.193 Re4p 40,000 - 400,000 Nu = 0.027Rees pT
Transcribed Image Text:Boundary Condition Laminar or Turbulent Nusselt Equation Uniform Temperature Laminar Nu = 0.664Ref5p Nu = 0.037Ref"p Nu = 0.453R€25P;/3 Uniform Temperature Turbulent Uniform Heat Flux Laminar Uniform Heat Flux Turbulent Nu = 0.038 Rep/3 Reynold's Number Ranges: Re <1x 105 - Laminar Re 23 x 106 - Turbulent selt Correlations for Forced Convection over circular and non-circular cylinders in cross-flow. Shape Fluid Range of Re Nusselt Number Cylinder Gas or Liquid 0.4-4 Nu = 0.989 Re"p 4-40 Nu = 0.911 Resp7 40-4,000 Nu = 0.9683 Re 46p 4,000 - 40,000 Nu = 0.193 Re4p 40,000 - 400,000 Nu = 0.027Rees pT
Density kg Material Specific Latent Heat Latent Heat Thermal of Fusion, of Conductivity Heat kgKA Vaporization W \mK. kg. Air 1.225 718 0.025 Aluminum 2712 900 396000 200 Ammonia 682 4400 1371000 (Liquid) Cast Iron 7300 460 247000 40 Copper 8940 390 206000 400 Ероху 1200 1000 1.5 G10 1800 670 0.3 Fiberglass Glass 2200 750 1 Silicone 1070 1300 0.2 Steel 7850 450 247000 20
Transcribed Image Text:Density kg Material Specific Latent Heat Latent Heat Thermal of Fusion, of Conductivity Heat kgKA Vaporization W \mK. kg. Air 1.225 718 0.025 Aluminum 2712 900 396000 200 Ammonia 682 4400 1371000 (Liquid) Cast Iron 7300 460 247000 40 Copper 8940 390 206000 400 Ероху 1200 1000 1.5 G10 1800 670 0.3 Fiberglass Glass 2200 750 1 Silicone 1070 1300 0.2 Steel 7850 450 247000 20
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