Hi,
I was wondering if someone could help me a bit regarding sizing of the main heating coil inside AHU in VAV system, single duct, multiple zones...etc. So, I am aware of principle how VAVs with re-heating coils are operating (first, airflow is reduced until setpoint in the room is reached...
Hi all,
when calculating temperature drop in the HVAC ducts, what type of flow do you consider that is outside duct?
1. Natural Convection
2. Forced Convection
Let's say it is normal building in question, and all ducts are inside the false ceiling, or in the room (if there is no false...
Hi,
can you tell me which software are you using for mechanical calculations? I'm interested in good software for mechanical calculation of heat exchangers.
Thank you in advance.
Hi,
Can someone recommend me a good website on how to calculate Center of Gravity in 3D, or some literature?
I have to calculate the COG of complete vessel with skid which is beside vessel.
Thanks in advance
Can someone explain to me what is steam out, and what does that mean in real life, when it is happening, what is actually happening when this occurs...
Thank you
Is there any option in Acad 2007 to set priority of osnaps? I keep all my osnaps turned on, and when I have a lot of line intersected, for instance, and want to start a line from that intersection point, I come near to that point and my midpoint osnap is activated instead of intersection...Like...
Hi, does anybody know is it possible to make acad to round dimensions to lower number. For instance, I draw a line,and dimension shows 45.8796548.. Is it possible somehow to set precision 0, and to get number 45 instead of 46 as I get now????
Thanks in advance
Hi, can someone direct me to a book, or website, whcih can show me how to calculate thermal conductivity and dynamic viscosity of mixture of gases?
My mixture consists of: Hydrogen, Nitrogen, Carbon monoxyde, Carbon Dyoxide, Methane and water vapor...
I need formula to calculate thermal...
Hi. Can someone help me on how to enter centerlines of cylinders in a drawing?
I have a couple of cylinders in assembly, and when creating a drawing I don't have their centerlines in it.
Can someone tell me how to do that?
Thanx in advance.
Is it possible somehow to get information about membrane stress in my pressure vessel in PROE? I want proe to tell me what is the value of hoop and circumferential stress in plate, if I give him the value of tempereature and pressure.
Thanks in advance
Hi.
I'm doing some asme calculation of flange, and since I'm pretty new in this I have some problems here. I don't know how to determine Actual Bolt Area (Ab). I have calculated Required Bolt Area (Am), and I have 20 bolts 1 1/2in diameter.
I thought that Ab should be ((1 1/2)2*Pi/4)*20, but...
Hi. Is it possible somehow to call this flatshot command from acad's command line?
I have to create a lisp file which will create a 2d drawing from a 3d solid. One way to do this is flatshot command.
Other way is to try to select all entities which have Z coordinate 0. But I'm not sure how to...
Hi...I'm creating a lISP file which will do something in 3d... When I load my lisp and start it, I must enter desired data in dialog box, and when I click OK it draws for me a 3d MODEL....now...this 3d model needs to be 3dmirrored...arrayed....etc...but I'm coming up to the following...
Hi. Is it possible to turn off this stupid option?
I have 3d model, and 3 views in MODEL space. When I create a plate in 3D, I choose 3 viewports. After that acad gives me 3 isometric views (because isometric is curent). Then I select one of the views and choose to be TOP view, but when I do...
Hi.
Is it possible to set up 3d viewports without accessing viewport dialog box?
Here is my problem. I have a lisp file creating a cylinder, and I want that lisp to automatically creates for me 4 viewports with different views. In one view to be isometric, and in the rest to be top, front...
Does anyone know how to write a lisp file that will use data from Excel to draw something.
I want to enter coordinates of points in Excel, and to create lisp file which will use these coordinates to draw lines, circles etc..
Thanks in advance.
Does anyone know how to copy my settings to the new version of ACAD.
I know how to copy my settings from one computer to another, but how to translate that to the new version of ACAD.
Is there any chance to do that?
Hi...I have a problem with SolidWorks..I don't know if I'm on right forum, but I hope that someone here can help me..Here is my problem. I need to put the true pipe length in my BOM, but I don't know how. When I have a pipe that goes through the shell, I don't know how to make solid works to...
Hi...I have a problem with SolidWorks..I don't know if I'm on right forum, but I hope that someone here can help me..Here is my problem. I need to put the true pipe length in my BOM, but I don't know how. When I have a pipe that goes through the shell, I don't know how to make solid works to...
