Media Center
HomeMedia CenterZBG Info

Efficiency of 8TPH Coal Fired Boiler

2016-10-31 16:32:48

People are always concerned about the boiler price and efficiency, for even 1% efficiency improved can save large money finally. We know there are two methods to calculate a boiler efficiency: direct method and indirect method, of which the direct method is much easier than the indirect one. Here we use the easy way to calculate a 8 ton coal fired boiler efficiency.

Before we start the calculating, we should to know the parameters for the calculation of boiler efficiency by direct method are :

Quantity of steam generated per hour (Q) in kg/hr.
Quantity of fuel used per hour (q) in kg/hr.
The working pressure (in kg/cm2(g)) and superheat temperature (oC), if any
The temperature of feed water (oC)
Type of fuel and gross calorific value of the fuel (GCV) in kCal/kg of fuel

where, hg - Enthalpy of saturated steam in kCal/kg of steam
hf - Enthalpy of feed water in kCal/kg of water

coal fired steam boiler efficiency

coal fired steam boiler

After we grasp the method, we can find out the efficiency of the boiler by direct method with the data given below:

- Type of boiler : Coal fired
- Quantity of steam (dry) generated : 8 TPH
- Steam pressure (gauge) / temp : 10 kg/cm2(g)/ 180oC
- Quantity of coal consumed : 1.8 TPH
- Feed water temperature : 85oC
- GCV of coal : 3200 kCal/kg
- Enthalpy of steam at 10 kg/cm2 pressure : 665 kCal/kg (saturated)
- Enthalpy of feed water : 85 kCal/kg

It should be noted that boiler may not generate 100% saturated dry steam, and there may be some amount of wetness in the steam.

ZBG is a professional and trusted boiler manufacturer, if you are looking for a new boiler, contact us by TEL 86-371-86062323 or EMAIL

Products Recommended
Vulcanization Tank
Vulcanization Tank Customized
Pressure: 0.45-1.3MPa (4.5 - 13bar)
DHL Corner Tube Biomass Fired Bo
DHL Corner Tube Biomass Fired Bo 10-160 t/7-112 MW
Pressure: ≤5.29MPa
Biomass Power Plant Boiler
Biomass Power Plant Boiler 10 - 75 t/ 7-52.5 MW
Pressure: ≤5.29MPa
Biomass Fired CFB Boiler
Biomass Fired CFB Boiler 20-280 t/ 14-196 MW
Pressure: ≤5.29MPa
Success Stories
100 Tons CFB Boiler in Zhengjian
100 Tons CFB Boiler in Zhengjian Application: Thermal Power Plant
Capacity: 100 Tons
1 Ton Gas Steam Boiler in Chile
1 Ton Gas Steam Boiler in Chile Application: Rubber Vulcanization
Capacity: 1 Ton/hr
6 ton biomass steam boiler in Ir
6 ton biomass steam boiler in Ir Application: paper industry
Capacity: 6 ton
15 ton diesel steam boiler in Pu
15 ton diesel steam boiler in Pu Application: tire factory
Capacity: 15 ton
Checking Order Quality Test Before Delivery Check Items When Packing Packaging And Transport
Get An Instant Quotation

For all inquiries, please fill in the form below (* are required) to send us a brief message, and we will get back to you as soon as possible.

* Email:
Boiler fuel:
  • Gas
  • Oil
  • Biomass
  • Coal
  • Waste Heat
  • Other
  • Textile Industry
  • Central Heating
  • Food Plant
  • Power Plant
  • Chemical Industry
  • Waste Heat Recovery
  • AAC Block Plant
  • Hotel & Resort
  • CHP
  • Other