Determining the appropriate thermal performance of these devices involves analyzing factors like fluid properties (specific heat, viscosity, thermal conductivity), flow rates, inlet and outlet temperatures, and the physical characteristics of the exchanger itself (material, surface area, geometry). A typical example involves calculating the required surface area to achieve a desired heat transfer rate between two fluids.
Accurate thermal design is essential for optimizing energy efficiency, minimizing operating costs, and ensuring process effectiveness in numerous industrial applications. Historically, these analyses relied on manual calculations and empirical correlations. However, advancements in computational methods and software have enabled more complex and precise simulations, leading to improved designs and performance predictions. Proper thermal sizing prevents issues like insufficient heating or cooling, excessive pressure drops, and material degradation.