mru NOVAplus - Analysis and Calculation Methods

USER MANUAL NOVAplus
MRU GmbH, D-74172 Neckarsulm 87 / 95
11.3. Analysis and calculations
Measured values
Unit
O
2
[%]
Temp. Ambient air (Thermo-Element)
[°C]
Temp. Flue gas (Thermo-Element)
[°C]
CO
[ppm]
Draft
[hPa]
Available conversions of CO
CO
[ ppm ] related to. on 0% rest O
2
(undiluted)
X
[ ppm ] related to. on fuel type dependent O
2
reference
value
X
[ mg/m
3
]
X
[mg/kWh]
X
[mg/MJ]
X
[ mg/m
3
] on fuel type dependent O
2
reference value
X
Continously caculated values
Unit
CO
2
[%]
Efficiency ETA
[%]
Efficiency condensed
[%]
Losses
[%]
Losses condensed
[%]
Lambda
-
Dew point
[°C]
Losses and efficiency are calculated by means of net calorific value.
These values are than referenced for the gross calorific value for con-
densing boilers only. (efficiency > 100)
The calculations of efficiency and exhaust losses are performed using
Siegert’s formula.
For further information please contact MRU GmbH