The present study investigated the physical processes responsible for the variation in the
boiling curve and critical heat flux (CHF) caused by liquid subcooling under atmospheric …

An experimental study was conducted to investigate bubble parameters in an inclined
channel with a downward-facing heated wall. The flow conditions covered mass flux of 140 …

The ex-vessel core catcher of the PECS (Passive Ex-vessel corium retaining and Cooling
System) is installed to retain and cool down the corium in the reactor cavity of the EU …

A core catcher is adopted in the EU-APR1400 reactor design for management and
mitigation of severe accidents with reactor core melting. The core catcher concept …

Flow boiling experiments were carried out with water on a 300 mm× 120 mm area and 85
mm thick downward-facing heated copper block at 1.4 bar pressure in a channel inclined …

Boiling-induced natural-circulation flow in various engineered cooling channels is modeled
and solved by considering the conservation of mass, momentum, and energy in the two …

Ex-vessel core catcher cooling system driven by natural circulation is designed using a full
scaled air-water system. A transparent half symmetric section of a core catcher coolant …

A semi-mechanistic critical heat flux (CHF) model has been developed based on own
experimental data. It is the first model, which can predict a spatial variation of the local CHF …

In the EU-APR1400, an ex-vessel core catcher system, a key design component of
considerable interest is the engineered corium cooling system. It consists of a cooling …

A two-phase natural circulation cooling has been proposed to remove melted core decay
heat by external core catcher cooling system during sever accident scenario. In this paper …