I understand that NFPA 96 doesn't prohibit running grease duct horizontally, but there are many issues with horizontal grease duct, such as:
1) Duct cleaning
2) Duct sagging over the time and creating low points where grease will collect
3 During the cleaning process sprinkler heads get damaged...
Controlling it with dP is not an option in our case since the engineer that designed one of the buildings on our campus didnt provide tertiary pumps and we are using secondary pumps to lift the water to the highest level of the building and we can't go below certain dP settings on the system...
What is the easiest fix for the Low Delta T syndrome in a typical primary/secondary chiller plant set up.
Reading in one of the ASHRAE Journals it was suggested to control chiller from the secondary supply water temperature rather than from the primary, if the supply water in the secondary is...
