I'm looking for a source for intitial rough design load estimates for the below:
cooling - sq-ft/ton
people - sq-ft/person
air change - cfm/person
primary air - cfm/sq-ft
lights - watts/sq-ft
power - watts/sq-ft
Buildings I'm trying to obtain this info. for are below:
indoor pool
athletic gym...
Hello,
I have to cost out the piping system for a constuction project located in the Caribbean.
Is anyone aware of Mechanical Cost Data adjusting factors for construction sites in the caribbean, in particular, Anguilla Island?
I have the 2003 RSMeans Mechanical Cost Data Manual.
Any thougts...
Yes, I have the all properties of ethylene glycol.
However, my piping head loss values are for water. I still need a multiplier to convert water piping head loss to ethylene glycol piping head loss.
The question is what temperature do I compute the water friction factor at?
--Steve
Hello,
We are designing a new AC piping system that uses ethylene glycol chiller fluid that can go down to 8-degrees Fahrenheit.
I need to compute a friction loss factor to adjust the piping system head loss assuming water is the fluid to the actual head loss for ethylene glycol.
I found that...
That's right! My mistake!
The bypass pump is 2-ft head piping at the pump plus 58-ft in the common pipe system that equals 60-ft of head total for the bypass pump.
The 58-ft head section connects to the input/output of the two pumps in parallel.
Thanks!
--Steve M.
It turns out that the fitting losses associated with each individual pump are significantly different: pump-1 32-ft and pump-2 2-ft
Do I simply add each pumps fitting loss to the main section loss of 58-ft? to compute pump-1 90-ft loss and pump-2 34-ft loss?
Comparing piping to circuit...
Hello,
I have two parallel pumps: pump-1 has a 32-gpm flowrate and pump-2 has a 96-gpm flowrate. These two pumps feed into a loop that has a 128-gpm flowrate and 58-ft of head loss.
How much headloss do I use from the 128-gpm loop for each of these pumps for pump sizing?
--Steve M.
Yes, it is a nozzle, i.e. a 20-foot pipe, including 2-90-degree bends, attached to a vessel.
It appears that nozzle pro will model the pipe w/ beam elements.
The failure is in the weld at the pipe/vessel support plate interface. The load is a 95-to-400 degree F temperature differential...
Hello,
I am looking for FEA software to help model a pipe-to-vessel interface.
As displayed in the attached drawing, the pipe has two 90-degree bends shortly before interfacing the pressure vessel. The pipe/vessel interface is supported with a 24"x24" and 3/16" thick plate. The piping fluid...