Evaluate reformer performance at a glance : Clean fuels technology

Three typical variables used in piping system design are pressure drop, pipe diameter and flowrate. When pipe diameter or flowrate is unknown, Reynolds number cannot be calculated. Under these circumstances, a trial-and-error procedure is needed. The regime of flow is first assumed and then the unknown quantity (diameter or flowrate) is calculated using the appropriate equation for the assumed regime. Then the assumed regime is verified by calculating the Reynolds number. If it is not correct, another flow regime is assumed and the calculations are repeated. This paper presents a method that eliminates the time-consuming trial-and-error solution.