Water at 37?C flows at 3 m/s across at 6 cm O.D. tube that is held at 97?C. In a second configuration, 37?C water flows at an average velocity of 3 m/s through a bundle of 6 cm O.D. tubes that are held at 97?C. The bundle is staggered, with ST /SL = 2. Compare the heat transfer coefficients for the two situations.