Since there is little information so far on the phenomena of flash evaporation in a flash chamber of comparatively short length, the authors measured temperature and velocity profiles in a 1.0 meter long flash chamber with and without interstage baffle plates.
The results obtained above are quite different from those obtained from a chamber of comparatively long length.
Without baffle plate, flashing occurs at the rear of the chamber, where the submerged hot jet of liquid reaches the liquid-vapor interface, and the reverse flow of liquid exists near the liquid-vapor interface.
When a baffle plate is installed in the flash chamber, flashing occurs at the front part of the chamber and the reverse flow of liquid exists near the bottom of the chamber.
In the case of a short flash chamber, evaporation is considerably enhanced by the installation of a baffle plate.
Also, the authors obtained empirical equations for non-equilibrium temperature difference from the experimental results.
