Thanks Guys . Finally went for a supplier selected unit , but its very close to what WillamTZ mentioned. I agree its the safest option. Refer attached what will finally go in. https://files.engineering.com/getfile.aspx?folder=67e98b34-f2d1-4888-a916-312e52a746c5&file=6D03_en.pdf
Apart from the 4 bunkers everything else is a cooling coil that is sized for 8.9 degree C delta T .
Thats why i guess the best way is the split the cicruit via a plate type hx put a seperate loop for higher temp for the bunker loads .
Hi Guys,
I realized another issue is that the header is connecting all 4 bunkers , 2 of which will not even be live for the 1st phase , which means the return water is not going to be at 14.4 due to no load or minimal load. My airside is all AHU so there is no real load on the system on this...
Thank you for the response. The linac can live with 14.4 C easily. If i get your point correclty its better to put in duty standby pumps and push the return water through the linac loop and connect it back to the main line.
Regarding the system this is part of larger hospital that has 3 1000 ton...
My only other concern is the flow on this leg. Once piped return to return how to ensure that there is proper flow.
The LINAC bunkers are also adjacent to each other with a common header , so a spike in the load ( 25kW is max load ) would sent the hotter water back to the main line which...
Hi,
I have a unique situation on a hospital project where the medical equipment supplier for the LINAC bunker requires a temperature over 10 C as a supply temperature . My chilled water supply is 5.5 C with a return at 14.4 C .
Since I cannot supply using 5.5 C , i was wondering if i can use...
