Nov 17, 2012 · Re: Area of slot diffuser when calculate air flow during commissioning r.bartlett is correct. The manufacturer will have a web site with diffuser technical catalogs and submittal …

Oct 9, 2010 · Isnt' it? Now, in order to be able to answer your question we need to know the air flow rate, the external static pressure of the fan for the rated air flow, the size of the door and …

Aug 12, 2021 · Is there an accepted formula to calculate the number of PRV's required in a specific sized freezer room?. Derek:confused:

Jul 6, 2013 · The pressure loss Δt=0.04k/m, I calculate the correspondingΔp, for example, =saturated pressure (@-40℃)- saturated pressure (@-40.04℃), right? 2. In the Table3, the …

Does anybody know of a tool (or the formulas) to calculate the energy efficency of a Refrigirant system? (Inputs: temperature, Pressure, Power consumption, refrigirant)

There are generally two possibilities that i know. One is to measure the air velocitiy in the attached duct work. Using the formula volume flow=hydraulic area (ductwork)* measured velocity, will …

Feb 5, 2007 · To have that pressure you have to properly calculate the head and friction losses in the liquid line piping. Then you have the refrigerant pumps, which operate under the same …

The issue is static pressure of overfed evaporators. Column of liquid in suction raiser increase pressure (and temperature) at lower part of the coil. This is the reason of higher temperature. I …

Sep 26, 2007 · Re: Fan Static Pressure If I understood your question correctly, then it's too many variables to give you an answer. Imagine the fan hanging in free air, then it wouldn't be any …

Calculate the duty of a condensing unit required to maintain the above ground beer cellar at 10 degrees c in an ambient of 27 degrees c. Take U value of the walls and ceiling 0.75 wm2 …