Chapter 1, Problem 1.46P

A blood warmer is to be used during the transfusion ofblood to a patient. This device is to heat blood takenfrom the blood bank at 10°C to 37°C at a how rate of200 ml/mm. The blood passes through tubing of length2 m, with a rectangular cross section $\text{6}.\text{4 mm}\times \text{1}.\text{6 mm}$ At what rate must heat be added to the blood to accomplish the required temperature increase? If the fluid originates from a large tank with nearly zero velocityand flows, vertically downward for its 2-m length, estimate the magnitudes of kinetic and potential energychanges. Assume the bloods properties are similar tothose of water.