Thermal entry length evaluator uses Length = 0.04*Reynolds Number Dia*Diameter of Thermal Entry Tube*Prandtl Number to evaluate the Length, Thermal entry length formula is defined as a measure of the distance required for a fluid to reach thermal equilibrium within a tube, influencing heat transfer efficiency in laminar flow conditions. Length is denoted by L symbol.
How to evaluate Thermal entry length using this online evaluator? To use this online evaluator for Thermal entry length, enter Reynolds Number Dia (ReD), Diameter of Thermal Entry Tube (Dt) & Prandtl Number (Pr) and hit the calculate button.