A concentric tube heat exchanger of length L=2m is used to thermally process a pharmaceutical product flowing at a mean velocity of um. c=0.1 m/s with an inlet temperature of Tc, i=20oC. The inner tube of diameter Di= 10 mm is thin walled, and the exterior tube (Do=20 mm) is well insulated. Water flows in the annular region between the tubes at a mean velocity of um, h=0.2 m/s with an inlet temperature of Th, i=60oC. Properties of the pharmaceutical product are υ=10 X10-6 m2/s, k=0.25 W/mK, rho=1100 kg/m3, and cp=2460 J/kgK. Evaluate water properties at Th= 50oC.

Agas contained within a piston-cylinder assembly e end nation about same energy states, 1 and 2, where pi 10 bar, v undergoes two processes, a and b, between the sam 0.1 m3, ui-400 kj and p2 1 bar, v2 1.0 m2, u2 200 kj: process a: process from 1 to 2 during which the pressure- volume relation is pv constant process b: constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to +20 0 state 2 kinetic and potential energy effects can be ignored. for each of the processes a and b, (a) sketch the process on p-v coordinates, (b) evaluate the work, in kj, and (c) evaluate process the heat transfer, in kj