A shell-and-Tube exchanger is designed assuming design coefficient of 600. The prediction of the design coefficient reveal its value to be 400. What should be done by the designer:

Biochemical Engineering mainly deals with the design, construction, and advancement of unit processes that involve biological organisms (such as fermentation) or organic molecules (often enzymes) and has various applications in areas of interest such as biofuels, food, pharmaceuticals, biotechnology, and water treatment processes. (Source: Wikipedia)