1 reply to this topic

[moriero66]

On your first day in a new job your boss says: 'Tell me what we need to do about recovering condensate from our process steam system. From the lowest point in the system back to the boiler house is 120m distance and there is a height increase of 10m. The maximum amount of condensate is 200 kg/hr and the normal steady flow is 175 kg/hr. The plant runs 24/7 year round except for two weeks annual outage. We expect it to operate for ten years.'
Thinks?
Recover or not
How to recover?
Arrangement of condensate receiver and size
NPSH available at pump – if pumped system!
Size of pipes, valves, bends, etc, and head losses
Size of pump – connections, impeller diameter, kW absorbed, speed
Size of driver
Position and arrangement of pumpset
Estimate run-up time for a typical squirrel cage induction motor/pump combination
Is start-up likely to cause water hammer
Consider whole life cost/return
Give reasoning
Anything you think you need but have not been told - find out and decide yourself
Typical cost:

Pumpset - £600 per kW

Pipework installation per 10m - 2" £1000/10m; 4" £2500/10m

Electricity £0.10 per kWh

Fuel £0.03 per kWh




please house check this stuff for me i think some thing is wrong with either the condensate flow rate or the size of the pipes.

[Art Montemayor]

moriero66:

Are you playing a joke or did you just forget to upload ALL of your DETAILED and documented calculations on a spreadsheet format - complete with a sketch?

I believe our members would be glad to see and check your detailed calculations that show all the reasoning, logic, and assumptions that you have done to arrive at your answers for each of the requested questions on this engineering assignment. But first, you must upload all the stuff that I've described in the manner that I've described it.

Await your upload.