Pressure Drops in C0₂ Supercritical Boilers : 2nd Report Dynamic Characteristics of Frictional Pressure Drop

Abstract

Experimental and analytical investigations were conducted on the dynamic behaviors of the frictional pressure drop in a CO₂ forced flow heated loop at supercritical and subcritical pressures near the critical pressure. The step responses of the pressure drop to the step changes of inlet flow rate, heat flux and exit pressure were measured. The analytical results obtained by using a smsll perturbation method and Laplace transformation agreed approximately with the experimental results.