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Montage- en bedieningsrichtlijnen
Gascondensatieketel WTC-GB 120 … 300-A
7 Inbedrijfstelling
83251707 1/2020-08 La 68-124
7.3 Warmtevermogen berekenen
Symbolen Verklaring
VBBedrijfsvolume in m3/h
Volume dat op de gasteller gemeten wordt bij huidige druk en
temperatuur (gasdebiet).
VNNormvolume in [m3//h]
Volume dat een gas bij 1013 mbar en 0 °C inneemt.
f Omrekeningsfactor
HiStookwaarde [kWh/m3] (bij 0 °C en 1013 mbar)
tgas Gastemperatuur op de gasteller [°C]
Pgas Druk op de gasteller [mbar]
Pbaro Barometrische luchtdruk [mbar], zie tabel
VGGeregistreerd gasdebiet op de gasteller
TMMeettijd [seconden]
QFWarmtevermogen [kW]
Actueel bedrijfsvolume (gasdebiet) bepalen
Gasdebiet VG op de gasteller meten, meettijd TM moet minstens 60 seconden
bedragen.
Bedrijfsvolume (VB) met onderstaande formule berekenen.
VB=3600 VG
TM
Omrekeningsfactor berekenen
Gastemperatuur (tgas) en gasdruk (Pgas) op de gasteller aflezen.
Barometrische luchtdruk (Pbaro) uit tabel aflezen.
Hoogte
boven
zeespiegel
[m]
0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300
PBaro
[mbar]
1013 1001 990 978 966 955 943 932 921 910 899 888 877 866
Omrekeningsfactor (f) met volgende formule berekenen.
f= Pbaro + Pgas
1013
273
273 + tgas
Normvolume berekenen
Normvolume (VN) met onderstaande formule berekenen.
VN= VBf
Warmtevermogen berekenen
Warmtevermogen (QF) met onderstaande formule berekenen.
QF= VNHi
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