文档介绍：pvc材料(pvc material)
Boiler model
Note: red is the real-time measurement point needed to be collected
Blue is the point of artificial input
Black as an intermediate variable
Part 1 boiler efficiency
excess air coefficient
Oxygen extraction
The excess air coefficient = 21 / (for exhaust oxygen)
basic coefficients
Low calorific value (usually without this point, requiring manual input)
K1, K2, K3, K4: Calculation of boiler efficiency coefficient
K1 = + * low calorific value / 1000
K2 = + * low calorific value / 1000
K3 = - * low calorific value / 1000
K4 = - + * low calorific value / 1000
specific heat of exhaust gas
Exhaust gas temperature
Exhaust gas specific heat = + * smoke exhaust temperature - * smoke exhaust temperature * smoke exhaust temperature
flue gas heat loss
Specific heat of exhaust gas
Excess air coefficient
Exhaust gas temperature
Cold air temperature (inlet air temperature of blower)
Low calorific value
K1, K2, K3, K4: Calculation of boiler efficiency coefficient
Dry gas heat loss = exhaust gas specific heat / low calorific value * (coefficient K1 + coefficient K2 * excess air coefficient) * (smoke temperature - cold air temperature) * 100
Moisture heat loss = / low calorific value * (coefficient K3 + * (coefficient K4 + coefficient K2 * air coefficient)) * (smoke temperature - cold air temperature) * 100
Heat loss of flue gas = dry flue gas heat loss + moisture heat loss
plete bustion loss
Heat loss of flue gas (fixed value, determined according to the situation of each factory)
Q3_b =
plete bustion loss
Qdw: low calorific value
Ay: ash content
Cfh: carbon content in fly ash
Clz: carbon content in slag
plete bustion loss = 33730 / low calorific value * ash * ( * fly ash carbon content / (100 - fly ash carbon content) + * slag carbon content / (100 – slag carbon content)
heat loss
Main ste