1
Q
Heat Generated by Fuel
A
Qa= mf HHV
2
Q
Rated Boiler Horsepower, RBH
A
for water tube: HS/0.91
for fire tube: HS/1.1
3
Q
Developed Boiler Horsepower, DBH
A
ms(hs-hf)/35,322 in HP
4
Q
Percent Rating, %R
A
DBH/RBH ×100
5
Q
ASME Evaporation Units
A
ms(hs-hf), kJ
6
Q
Factor of Evaporation
A
(hs-hf)/2257
7
Q
Boiler Efficiency, n
A
ms(hs-hf)/mf HHV
8
Q
net boiler Efficiency, n net
A
(ms(hs-hf)-aux)/mf HHV
9
Q
Actual Specific Evaporation
A
ms/mf
10
Q
Equivalent Evaporation, EE
A
ms×FE
11
Q
Equivalent specific evaporation, ESE
A
(ms/mf)×FE
12
Q
1kgf/cm² to kPa
A
98.0665
