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Engineering, 20.07.2019 00:30 itssdaen

In a long annulus (25cm id, 38cm od), atmospheric air is heated by steam condensing on the inner surface of the annulus at 149°c if the velocity of the air is 6m/s and its inlet bulk temperature is 38°c find the heat transfer coefficient, and if the annulus is 40m long, what is the exit temperature of the air?

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In a long annulus (25cm id, 38cm od), atmospheric air is heated by steam condensing on the inner sur...
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