TZF Downcomer Flooding Accuracy

TZF Model

• Most accurate downcomer capacity model available
• Accuracy not diminished in high pressure systems
• Not conservative in low pressure systems
• Downcomers are sized/rated correctly

Typical Tray Vendor Model

• Does not accurately predict the conditions which the downcomer will reach a capacity limit.
• Conservative for low pressure systems
• Optimistic for high pressure systems

Downcomers are not sized/rated correctly