Holland,
Yes its a mistake by my draughtman, Actually PUMP 19 should be read as 43 please!
And the Idle pump (which is the issue) is at the bottom passing through chilled water tank.
Kalikot, there is no hard and fast rules regarding the flow rate of those small pumps inside the Press'n units.
At one project I have seen a Dedicated booster pump doin the job and at other a .25 hp pump in consoled tiny unit.
There is more to cost saving also involved into it.
An approximate...
QUARK: I agree with u, a repeated push to supplier came with a wild guess of 5Kpa.
For holland and artisi check out the attached schematic. The 43-42 are in operation.
RossABQ idea have opened my thought... is discuusing same but seems very difficult.
Thanks everyone who made gave penny...
In a typival DATA Centre chilled water cooling application, we have two pumps in series
one for emergency chiller work.
Other at a regular District plant supply.
In emergency situation, motorised valves are actuated in such a way that the one pump has to complete this closed hydronic loop by...
Thanks, Quark and Texanman.
By index route I meant the farthest route or say "The worst pressure drop loop"
Moreover, I am in a hard core contracting firm, the deisgn is already there, I am here to look whether the specified Head meets the Actual head based on shop DWGS
The pumps are VFD...
I am in the middle of the actual pump head calculation. I found that the designer has considered the diversity factor of 75%.
i.e. The actual flow required for all the equipment is added together is about 240 L/s where as the pump’s total duty flow is 180 L/s
Carrying on while doing pump head...
For Anchor support on chilled water system.
Earlier we used a High grade Hard wood Timber to isolate and provide a thermal break for heat transfer.
It was a sort of Square flange.
But if the secondary support is by using threaded rods than it is difficult isolate it...
Thanks Mikanical, and as far as pressure drop at the inlet and outlet is concerned I did found in that reference in "fluid Mechanics" by Cengel.
Equivalent lenght=K (v2/2g)
Where K for sharp edges entries is .50
For the emergency supply to critical load, we have installed a buffer vessel of the following details.
Dimension: 1500 dia x 3800 length. (60”x152”)
Volume : 7.186 m3 (with distance head 200mm)
Mounting: Horizontal Type.
Material: Carbon Steel. A-106-GR.B
Inlet/Outlet: 150 Dia. PN16 Flanges...
i have this doubt in designing side.
this chiller will be employed for printing press machine.
Tonnage calculated by HAP gives 3 TR load of heat removal.
what i need is... How to select or calculate the cooling coil.
No.Rows, Area,and length for 3TR chiller?
After searching in my library...
