I am working on a job that is using a cooling tower with a chiller, but the refrigerant from the chiller is piped directly into the cooling tower, so technically its an evaporative condenser rather than a heat exchanger between.
I am trying to figure out what the code requirements are for...
So you have a 3phase direct driven plug fan, blowing air into a VERY large space with an exhaust route such that the fan can run in a steady state.
1. What determines the RPM of the fan/motor? I can see a motors come often at fixed RPM from the catalogue, does this mean that when a motor...
We have an HVAC room with 4 air handling units. We are replacing these with 1 large AHU.
The existing duct is staying as is with a few connections in the HVAC room.
We have a full PDMS and Navisworks model of the ducting system, and a design for our new system. Is it possible to get the...
Hi guys,
I am looking for Bin data for Santa Ana Ca, and hopefully a good database which has bin data for many cities.
Anyone point me in the right direction for acquiring bin data logs?
Thanks!
I am working on an engineering design which includes underground piping.
We're having the contractor dig a 4' trench, fill 6" deep sand, then verify it is at a certain compression value.
Then they lay the pipes and surround the pipes with sand and again verify their compression value.
Finally...
Nope, but thanks for the link!
I used the densities from the ASHRAE 2005 Fundamentals handbook, they give the density of 20% and 30% Ethylene glycol at multiple temperatures.
I was able to acquire a sufficient calculation from the density, the only problem is I would love to verify it with a...
Hi,
I just joined the boards today, and am a recent graduate for mechanical engineering.
I am designing an expansion tank for a chilled water loop, and it asks for the expansion coefficient for ethylene glycol.
I cannot find a ethylene glycol expansion table anywhere. were going from 21F to...
