8431 Murphy Drive Middleton, WI 53562
Telephone: 608-836-4400 Facsimile: 608-831-9279 www.intertek.com/building
TEST REPORT FOR HY-C COMPANY, LLC Report No.: 104415176MID-002AR2 Date: 11/09/21
m/s[g/g mole (mm Hg)/(K)(mm H 2 O)] 0.5
Δ P
= velocity pressure, mm H2O
T = temperature, K 28.56 = molecular weight of air P Baro
= barometric pressure, mm Hg = duct static pressure, mm Hg
P s
The mass flow rate shall be calculated as follows:
m = 3600VAp
where: m
= mass flow rate, kg/h
V = air flow velocity, m/s 3600 = number of seconds per hour A = duct cross-sectional area, m2 p
= density of air at standard temperature and pressure (use 1.204 kg/m3) The rate of heat release into the circulating air shall be calculated using the air flow and change in enthalpy, as follows:
Δ e = Δ h × m
Where: Δ e
= rate of heat release into the circulating air, kJ/h = change in enthalpy of the circulating air, kJ/kg
Δ h
m
= mass air flow rate, kg/h
The heat output over any time interval shall be calculated as the sum of the heat released over each measurement time interval, as follows:
E t = ∑ ( Δ e × i) for i= t 1 to t 2
Where: Et
= delivered heat output over any time interval t 2 –t 1 , kJ
i
= time interval for each measurement, h
The average heat output rate over any time interval shall be calculated as follows:
e t = E t /t
where e t
= average heat output, kJ/h
t
= time interval over which the average output is desired, h
Version: 03/13/18
Page 14 of 25
RT-L-AMER-Test-3778
Made with FlippingBook - professional solution for displaying marketing and sales documents online