Download Bacharach Fyrite Tech 50 Specifications

Fyrite Pro
Appendix A – Formulas and Tables
CO2 =
CO2 max (20.9 – O2%)
20.9
qA = (TA – TL) x (
λ (Excess Air) =
A2
+B)
20.9 – O2
20.9
20.9 – O2
Eta = (100% – qA) + [Kf, if TA < (T0 – 1.2 x O2)]
Efficiency = Eta – Kf
CO Air Free (Undilute) = CO x λ
CO/CO2 =
COppm x 10 –6
CO2% x 10 –2
Where:
O2 = Measured Oxygen in percent
TA = Measured stack temperature in °C
TL = Measured combustion air temperature in °C
CO = Measured carbon monoxide level in ppm
CO2 = Calculated carbon dioxide level in percent
qA = Calculated stack loss in percent
λ
= Calculated LAMBDA
A2, B, CO2 max, T0, and Kf are constants (see table below):
Fuel
Code
Fuel
A2
B
CO2 max
T0
Kf
F1
Natural Gas
0.66
0.009
11.8
58 °C
9.6%
F2
Propane
0.63
0.008
13.8
54 °C
7.6%
F3
Light Oil
0.68
0.007
15.4
51 °C
5.3%
F4
City Gas
0.63
0.011
13.1
0 °C
0%
Instruction 24-9388
51