Simplified Equations for Air

Simplified equations for the heat-transfer coefficient from various surfaces to air at atmospheric pressure and moderate temperatures are given in Table 7-2. These relations may be extended to higher or lower pressures by multiplying by the following factors [Pg.345]

Heated plate facing upward or cooled plate facing downward [Pg.346]

Heated plate facing downward or cooled plate acing upward [Pg.346]

Compute the heat transfer for the conditions of Example 7-5 using the simplified relations of Table 7-2. [Pg.346]

Nole that the simplified relation gives a value approximately 4 perceni higher than Eq. [Pg.346]

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