Heat Exchangers are an essential unit operation in the design of chemical processes, usually linked directly with energy efficiency aspects of a facility. Wildly used in a plethora of industrial applications such as oil and gas, pharmaceutical, food and drink, and HVAC. In a heat exchanger unit design, key fundamental principles like the zeroth, first, and second laws of thermodynamics are applied.Heat exchanger design revolves around understanding a basic equation:Equation 1Where,Q is the heat exchanger dutyA is the area for heat transferU is the overall heat transfer coefficientLMTD is the log mean temperature differenceThis equation relates the duty of the exchanger (Q) with the surface a...