I have a 100 KVA UPS (uniterrupted power supply) unit with a maximum heat dissipation rate of 20,490 btuh. I am looking of a realistic diversity factor to use in my heat load calculations.
I am looking for imformation on the maximum allowable vaccum on a 24 inch diameter 22 gauge stainless steel spiral pipe. SMACNA only gives lengths up for pressures up to 10". I am looking to calculate higher vacuum pressures.