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Report prepared for: Guillaume Thibodeau-Fortin (Stove Builder International Inc.) on 9/6/2018 2:01:07 PM
Test report 103536746MTL-002 (15 of 21)
TEST REPORT FOR STOVE BUILDER INTERNATIONAL INC.
Report No.: 103536746MTL-002
Date: 07/13/18
W
= duct width, m
The air flow velocity shall be calculated as follows:
where
V
= velocity, m/s
F
= Pitot tube calibration factor determined from vane anemometer measurements
P
C
= Pitot factor
P
= 0.99 for a standard Pitot tube or as determined by calibration for a Type S Pitot tube
34.97 = Pitot tube constant
ΔP
= velocity pressure, mm H2O
T
= temperature, K
28.56 = molecular weight of air
P
= barometric pressure, mm Hg
Baro
P
= duct static pressure, mm Hg
s
The mass flow rate shall be calculated as follows:
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:
Where:
Δe
= rate of heat release into the circulating air, kJ/h
Δh
= change in enthalpy of the circulating air, kJ/kg
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:
Version: 05/10/17
Stove Builder International Inc. | 44826 | Rev: Aug 31 2018 3:17PM | Uncontrolled Copy
V = F
x C
x 34.97 x √T/28.56(P
p
p
Note: The Pitot tube constant is determined on the basis of the following units:
m/s[g/g mole (mm Hg)/(K)(mm H
m = 3600VAp
Δe = Δh × m
+ P
)
baro
s
0.5
O)]
2
Page 15 of 21
8431 Murphy Drive
Middleton, WI 53562
Telephone: 608-836-4400
Facsimile: 608-831-9279
www.intertek.com/building
GFT-OP-10c
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