Determine the chimney height required to preserve design flow ina natural recirculation boiling water reactor channel with thefollowing characteristics:
System pressure: 7.136 MPa
Reactor height 1.83 m
Feedwater temperature 260 Celsius
Combined pressure in losses in the channel, chimney, anddowncomer: 1344.5 Pa
Average channel density in the core: 642.9 kg / m^3
Two-phase friction losses in the chimney 137.9 Pa
Friction losses in the downcomer: 68.9 Pa
Friction drop in channel: 606.7 Pa
Average exit void fraction: 44%
Feedwater added near the top of chimney
