The Dittus-Boelter Equation for Convective Heat Transfer [(I

question 72

Multiple Choice

The Dittus-Boelter equation for convective heat transfer [(i.e. h = 0.023 (K/D) (Re) 0.8 (Pr) 0.4] cannot be used for

• A)Low Reynold's number
• B)Very low Grashoff number
• C)Molten metals
• D)All (A), (B) and (C)

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