Combined fan and ejector cooling

A method for a pressing arrangement for treatment of articles by hot isostatic pressing comprising a pressure vessel including:

• a furnace chamber comprising a heat insulated casing and a furnace adapted to hold the articles and a load compartment adapted to hold articles to be treated, said load compartment being arranged with at least one top opening and at least one bottom opening, wherein a flow of pressure medium through the load compartment is allowed, said method comprising:
• providing a circulating flow of pressure medium within the furnace chamber using a fan for enhancing an inner convection loop, in which inner convection loop pressure medium has an upward flow through said load compartment and a downward flow along a peripheral portion of the furnace chamber;
• and
• generating a flow of pressure medium into said load compartment to enhance said inner convection loop using at least one flow generator, said flow being generated by transporting pressure medium upwards from a space below a bottom insulating portion and above a bottom end portion and injecting said pressure medium into said load compartment to enhance said inner convection loop.