Studies on steam condensation and particle diffusiophoresis in a heat exhanger tube

摘要

In this paper, studies on steam condensation and aerosol behaviour in a heat exchanger are presented. The heat exchanger is a model of one single tube of a Passive Containment condenser (PCC) that is used in the European Simplified Boiling Water Reactor (ESBWR). A hot carrier gas containing nitrogen and steam with Ag and CsOH Particles flows through the heat exchanger. The walls of the heat exchanger are cooled with a water jacket, thus Causing steam condensation and diffusiophoretic particle deposition. The amount of condensed steam is measured, as Well as the temperatures, particle mass concentrations and size distributions before and after the heat exchanger.