mru NOVA compact - Analysis and Calculation Formulas

USER MANUAL
NOVA
compact
MRU GmbH, D-74172 Neckarsulm
42 / 50
11.5. Analysis and calculations
Continuous measured values
Unit
O
2
[%]
Temp. Ambient air (Thermo-Element)
[°C] [°F]
Temp. Flue gas (Thermo-Element)
[°C] [°F]
CO
[ppm]
Draft
[hPa]
Available conversions
CO
NO
[ ppm ] related to. on 0% rest O
2
(undiluted)
X
X
[ ppm ] related to. on fuel type dependent O
2
reference value
X
X
[ mg/m
3
]
X
X
[mg/kWh]
X
X
[mg/MJ]
X
X
[ mg/m
3
] on fuel type dependent O
2
reference value
X
X
Further continously caculated values
Unit
CO
2
[%]
Efficiency ETA
[%]
Efficiency condensed
[%]
Losses
[%]
Losses condensed
[%]
Lambda
-
Dew point
[°C]
CO/CO2 ratio
[%]
Losses and efficiency are calculated by means of net calorific value.
These values are than referenced for the gross calorific value for condensing boilers only.
(efficiency > 100)
The calculations of efficiency and exhaust losses are performed using Siegert’s formula.