Heat Build Up-Enclosed Space
Heat Build Up-Enclosed Space
(OP)
I have a room with transformers producing 126mbtu. The room is 885 sqft with 10 ft ceilings and no envelope loads. The room is presently cooled with a CHW AHU. If the AHU fails: How much time will it take for the room to heat up 15degrees? I'm trying to figure it out on paper with no luck other then...quickly!
Thanks
Thanks





RE: Heat Build Up-Enclosed Space
1. Is there a possibility of ventilation do to naturual convection during the heat up.
2. What other mass (heat sinks) is (are) in room.
3. Other surface areas for convection and radiation.
4. Actual free volume of air in room.
5. What if any heat trans coefficients are used for cooling of transformers with CHW AHU. With the loss of these units if coefficients are lower, then what is impact on transformers.
RE: Heat Build Up-Enclosed Space
Once you derive the total heat load, go to thread403-135514 for further procedure.