For a counter-current heat exchanger the clean overall heat transfer coefficient is 500 W/m2.K and the overall fouling factor is 0.00035 m2 K/W. What will be the value of the design overall heat transfer coefficient:

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)