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In this webinar we move beyond Basic Psychrometrics and discuss the following:

Part 1 Air Mixing. Mixing air on the psychrometric chart.
Part 2 Calculating SHR. The sensible heat ratio is one of the most important HVAC aspects of the psych chart.
Part 3 Calculating CFM and sizing the airflow of the hvac system. Using the sensible heat equation to calculate air quantity in cubic feet per minute (CFM). See equation below.
Part 4 Calculating tons of refrigeration using the enthalpy of air as shown on the psychrometric chart and the total cooling equation. See equation below.

Takeaway equations from this webinar:
Sensible cooling (Btu/hr) = 1.085 x CFM x dT
Total cooling (Btu/hr) = CFM x 4.5 x dH
1 Ton of Refrigeration = 12,000 Btu/hr
1 BTU = Amount of heat required to raise (or lower) the temperature of one pound of water 1F
Enthalpy = sensible heat + latent heat

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Tony Mormino
tmormino@insightusa.c