The document summarizes measurements taken to calculate the efficiency of three different gas boilers. It outlines the input data collected, including natural gas characteristics, flue gas composition, flow rates, and temperatures. It then describes how different boiler types work and the equipment used to evaluate parameters like efficiency. The results and conclusions discuss the operational characteristics and importance of condensing boiler technology.

1. Efficiency
of Gas Boilers
Project Work-based Presentation
Conference on Brazilian - Hungarian Academic and Scientific Cooperation
Budapest Business School
Budapest, 15th January 2015
Author
Rodrigo Junio Pereira de Barcelos
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2. Outline
• Purposes of the Measurements
• Input Data
• How It Works
• Types of Boilers
• Evaluated Parameters
• Applied Equipment
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3. Purposes of the Measurements
• Calculation the efficiency of three different boilers based on:
• Natural Gas Characteristics HHV/LHV (Hv)
• Flue Gas Composition CO2, O2, Tfg
• Flow Rates 𝑚 𝑤𝑎𝑡𝑒𝑟, 𝑉𝑔𝑎𝑠
• Temperatures Tair, Tsupply, Treturn
• Excel Sheets
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4. How It Works – Different Boiler Types
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6. Applied Equipment
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7. Evaluated Parameters – Condensing Boiler
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8. Useful Equations
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9. Results
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10. Conclusions
• Operational Characteristics
• Importance of the Technology
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11. Questions?
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12. Köszönöm Szépen
Conference on Brazilian - Hungarian Academic and Scientific Cooperation
Budapest Business School
Budapest, 15th January 2015
Author
Rodrigo Junio Pereira de Barcelos
12
Thanks for Your
Attention