In-situ continuous measuremnet of paraticle size distribution in two phase flow by light scattering

摘要

Inversion of particle size distribution in two-phae flow by light scattering has been considered involved because it was in gneral to the solution of Fredholm integral equation of the first kind that was always ill-posed.In this paper by using the Rosin-Rammler distribution a priori as the particulate size distribution model in the liquid-gas tow-phase flow ,a method via the solution of a two-parameter nonlinear programming roblem to determine the particle size distribution has bene developed.A measurement system based on the technique is desigend and applied in the shock test of blades of steam turbine.100-hour ocntinuous monitoring of the particles in the liquid-gas two-phase flwo of 8.0Pa and 120 deg C was perormed and the details of the experiments were given out.It was shown that th etechiuqe was simple and efrficiency for in-situ real time measruign particle sint eh liuqid-gas two-phase flow.