On the performance of a cascade of turbine rotor tip section blading in wet steam part 4: droplet measurements

摘要

In the course of expansion of steam in turbines the state path crosses the saturation line and the fluid nucleates to become a two-phase mixture. These conditions can be reproduced under blow-down conditions by the equipment employed. This paperis the fourth of a set describing an investigation into the performance of a cascade of rotor tip section blading in wet steam and presents the results of droplet measurements which have been carried out by light extinction.