Before AHU cooling coil design, the sensible and latent cooling load must be determined. Anyone interested to learn how to perform cooling load calculation, check out my RTS Cooling Load Calculation Course (course.aircondlounge.com/rts-cooling-load-calculation-course). If you would like to go through this video in the future, it is quicker to read my blog post (aircondlounge.com/how-to-size-ahu-cooling-coil). Feel free to ask questions in the comment section if you have any.

Im from indonesia , thanks sir you are amazing ,

@aircondlounge

20 күн бұрын

It’s nice to meet you!

@aircondlounge if your AHU is CAV you can add sensible heat to get total sensible heat. if AHU is VAV then you can nod add the max of each zone sensible heat together

@aircondlounge

13 күн бұрын

For VAV AHU, you should apply a diversity factor to the total sensible heat you mean?

@sadeghnaderi4129

11 күн бұрын

@@aircondlounge you should calculate total sensible load of all zones hourly to find the worst scenario with highest load, not just add the load of each zones together. because they can not occur at the same time to add them together

@aircondlounge

11 күн бұрын

For load calculation yes. However, if those zones are serve by one AHU, adding the max load at each zone at different hour will lead to oversizing because when one zone is at max load, it doesn’t necessarily means the other zones are at max load as well. So, sum up the load by the same hour and choose the highest one should be the optimal approach.

@sadeghnaderi4129

11 күн бұрын

@@aircondlounge yes thats what I mean. So you select the hour with highest load?

@aircondlounge

11 күн бұрын

Because this video is about coil sizing, the sensible loads are just an example. In load calculation, I do calculate by hourly and pick the highest load hour.

Where can i get the copy for psychometric chart same as what you use in the video?

@aircondlounge

5 ай бұрын

It is extracted from the ASHRAE Handbook. You may try google it though.

@user-jw7gh5py3v

4 ай бұрын

@@aircondlounge ok thanks a lot. :)