Question: Liquid ammonia flows in a duct having a cross section of an equilateral triangle 1.0cmon a side. The average bulk temperature is 20oC, and the

Liquid ammonia flows in a duct having a cross section of an equilateral triangle 1.0cmon a side. The average bulk temperature is 20oC, and the duct wall temperature is 50oC. Fully developed laminar flow is experienced with a Reynolds number of 1000. Calculate the heat transfer per unit length of duct.

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