Static pressure in ducts and vessel (1 Viewer)

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

If air is venting thru a 10" duct and there is a static pressure drop of
2” water column for every 100’ of length at 2000 cfm and the duct opens to a 1000 cubic feet airtight vessel and exits through another 100’ of 10” duct how can you find the pressure drop for the tank alone?


Science Advisor
Homework Helper
Gold Member
Hi Gordon. You can add up the pressure losses for each individual portion of the system to come up with a total pressure loss. The loss for the tank, assuming it's large relative to the duct diameter, is only the entrance and exit losses. There's some discussion of that here: [Broken]
and here:
Last edited by a moderator:

The Physics Forums Way

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving