Hi all,
I have a question regarding the "pressure" value for the duct leakage equation below (I've copied and pasted this from a paper I was reading):
Qleak = C · As · ∆ p0.65
Qleak is the quantity of leaked air,
C is a constant related to the duct tightness (which relates to the details of...
Hi guys,
I've come across a problem which I can't seem to find an answer to online.
Is there any difference between the method of sizing pipe with water flow (say chilled/condenser water) or gas flow or vacuum air flow?
The reason I ask this is because of the following attached charts from...
Hi all,
I am working on a project where we are positioning a set of duty/standby fans and ductwork right up against a wall.
My question is, has anyone done this before, and if so, were there any difficulties with access and maintenance, removal/installation of any of the equipment.
I ask...
Hi all,
I have a question regarding Variable Speed Drives.
I understand that it can have full control of the fan motor speed by varying the frequency and modifying the voltage/current. However, I've been wondering if the VSD can actually "slow" down the motor.
Say the fan was running at...
