Consider a concentric pipe heat exchanger that is 2m long, with an outer tube that has
a radius of 57mm, an inner tube that has a radius of 33mm and thickness of 2mm. Oil
flowing at 0.2kg/s is being cooled within the unit by cooling water in the inner tubes
with a flowrate of 0.3kg/s. The heat exchanger is made of stainless steel with a
thermal conductivity of 16W/m. K. Table 1 below contains the specifications of the unit
operation.
