How much fuel oil/gas does a 10 ton steam boiler consume?

Fuel consumption of 10 t/h steam boiler is diesel: 583 – 724 kg/h, Heavy Oil: 606 – 675 kg/h, Natural Gas: 658 – 774 Nm³/h, City Gas: 1,337 – 1,598 Nm³/h.

​​Operating Conditions​​

• ​​Feedwater temperature​​: 20°C
• ​​Steam output​​: 10ton/h
• ​​Steam parameters​​: 1.25 MPa pressure, 250°C superheated steam
• ​​Fuel calorific values​​:
  • Natural gas: 9,140 kcal/Nm³
  • City gas: 4,500 kcal/Nm³
  • Diesel: 10,200 kcal/kg
  • Heavy oil: 11,000 kcal/kg (average)

​​Theoretical Calculations​​

1. ​​Heat Demand​​:
   • Steam enthalpy (250°C, 1.25 MPa): 703 kcal/kg
   • Feedwater enthalpy (20°C): 20 kcal/kg
   • Net heat required per kg of steam: $703-20=683\text{kcal/kg}$
   • Total hourly heat demand: $$10,000\text{kg/h}\times 683\text{kcal/kg}=6,830,000\text{kcal/h}$$
2. ​​Fuel Consumption Formulas​​:
   • ​​Oil​​:Consumption (kg/h) = 6,830,000/Calorific value×Efficiency​
   • ​​Gas​​:Consumption (Nm³/h) = 6,830,000/Calorific value×Efficiency​
   • Assumed efficiencies (LHV): Oil (92%), Gas (95%).

10 ton steam boiler fuel consumption statistics​

​​Key Findings​

nszs oil/gas fired steam boiler​

1. ​​Efficiency Drivers​​:
   • Fangkuai’s ​​NSZS10t/h model​​ outperforms theoretical calculations due to:
     • High-efficiency burners for oil fuels.
     • Condensing technology for gas fuels (98% efficiency for natural gas).
   • Real-world consumption is ​​10–19% lower​​ than theoretical estimates.
2. ​​Cost and Environmental Impact​​:
   • ​​Diesel savings​​: 583.1 kg/h vs. 724 kg/h → Saves ~$127/hourat$0.9/kg.
   • ​​City gas savings​​: 1,337.6 Nm³/h vs. 1,598 Nm³/h → Reduces CO₂ emissions by ~20%.
3. ​​Recommendations​​:
   • Prioritize boilers with ​​condensing technology​​ for gas applications.
   • Regular maintenance sustains efficiency gains over time.

​High-efficiency Steam Boilers​

• ​​Lower fuel costs​​: Reduced consumption directly cuts operational expenses.
• ​​Environmental compliance​​: Efficient combustion minimizes emissions.
• ​​Scalability​​: Systems like Fangkuai’s NSZS10t/h adapt to variable loads without efficiency loss.

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