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Surface Conditioning

Surface Conditioning
Surface Conditioning
Is he heat transfer coefficient IN CONVECTION the same for two different surface materials?

Same flow conditions and surface geometry, but the surface made of two different materials, for example aluminium and steel.

Are their heat transfer coefficient different?

If yes, what formula shows it. Nussel number, Prandt?

Thanks!! =)

The overall heat transfer coefficient is based on many variables. One of these is the effect that the surface has on the turbulence of the fluid passing by. That means the roughness of the surface has an effect but the material doesn't. The material only is involved in the conductance portion of the overall heat transfer coefficient.



2 Turn on S Type Rubber Holder Quick Change Sanding Surface Conditioning Discs
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NEW 5 pk 4 Fine Grade Fiber Surface Conditioning Discs
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3M HOOKIT 5 DISC HOLDER 18444 FITS MAKITA GV 5000 FOR SURFACE CONDITIONING DISC
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3 Turn on S Type Rubber Holder Quick Change Sanding Surface Conditioning Discs
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Sandblaster 4 1 2 Surface Conditioning Disc by 3M no 9682
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2 of 2 Roloc Rubber Holder Quick Change Sanding Surface Conditioning Discs
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3M 08767 SCOTCH BRITE ROLOC SURFACE CONDITIONING DISC
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3M SCOTCH BRITE SE SURFACE CONDITIONING BELT NEW
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Scotch Transparent Duct Tape, 2 Inches x 20 Yards, Clear (2120-A) Scotch Transparent Duct Tape, 2 Inches x 20 Yards, Clear (2120-A)

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Cerama Bryte Stainless Steel Cleaning Polish (with Mineral Oil) Cerama Bryte Stainless Steel Cleaning Polish (with Mineral Oil)

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Magic Complete Stainless Steel Cleaning Cloths, 30-Count (Pack of 6) Magic Complete Stainless Steel Cleaning Cloths, 30-Count (Pack of 6)

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Stainless Steel Magic Wipes 30 ct. - Pack of 6

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3M Scotch-Brite Roloc Surface Conditioning Disc, 2 inch, Coarse, 07480 3M Scotch-Brite Roloc Surface Conditioning Disc, 2 inch, Coarse, 07480

 

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3M Scotch-Brite Roloc Surface Conditioning Disc, 2 inch, Coarse. Use for cleaning and finishing on all metals for removal of light rust, oxides and coatings. You get 25 Discs in a box. Color Brown. Max RPM 25000...

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Small Fan & Mini-Air Conditioner: The Original Handy Cooler in Blue. Portable and convenient. Runs on batteries or USB. Cools air up to 30F. Small Fan & Mini-Air Conditioner: The Original Handy Cooler in Blue. Portable and convenient. Runs on batteries or USB. Cools air up to 30F.

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Small fan that can cool air up to 30F. This revolutionary evaporative cooling fan is the closest thing to a hand held mini air conditioner! Use it outdoors or keep it indoors as a desk fan. Provides gentle cool breeze...

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Seidio Innocell 3500 mAh Extended-Life Battery for HTC EVO 4G - Black Seidio Innocell 3500 mAh Extended-Life Battery for HTC EVO 4G - Black

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This large capacity Innocell Extended Life Battery for the HTC Evo 4G is for the avid traveler who can't always get to a charger. It has double the capacity of the original battery and comes with a black replacement door featuring Seidio's signature soft touch coating...

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LensPen LENVMK1 Vidimax Ultra Screen Cleaner LensPen LENVMK1 Vidimax Ultra Screen Cleaner

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Description

VidiMax by LensPen is the universal screen cleaner that makes dust and fingerprints disappear from your TV, computer or other screen. It combines a handy super-soft dust brush and our unique optical quality chamois pad with our special non-liquid LensPen cleaning compound...

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