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We cant extactly say the CFM for1 Ton. But as per Thumb rule,
For centralized air conditioning system, I tr=400 CFM
For non centralized conditioning sysytem, I tr=300CFM.
Well goof question most of manufacturers consider400/300 CFM per nominal TR you cannot consider that when your are working on different ambient conditions, since your CFM/TR will change.
For Fresh air application you can consider as a Thumb Role (100 to150) CFM/RT
Actually one ton of refrigeration =12,000 BTU/hr. When it comes to relating this to air quantities, the basic equation is: Q (btu/hr) =1.08 (constant for air at standard conditions)*density correction factor*cfm*delta T 400 cfm per ton is a manufacturers nominal standard, or rule of thumb. It should get you in the ballpark, but is not exact.
each TR =400 CFM thumb rule 200 Sq.ft =1 TR .....150 to200 Sq.ft =1TR
evrey is having there own formula regarding cfm calculation . which means no body knows exactly what cfm is and how it is calculated'
