2010•Gas & HeatRequires access

Gas-fired Boiler Flue Gas Heat Loss and Condensation Heat Recovery

Kou Guang-xia

Abstract

The influencing factors of steam volume fraction and dew point of flue gas are analyzed. The influence of flue gas temperature of gas-fired boiler and excess air coefficient on flue gas heat loss is discussed. The theoretical calculation for improving the thermal efficiency of gas-fired boiler by recovery device of condensation heat from flue gas is carried out with calculation example.

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Available abstract

Key concepts: Flue gas, Boiler (water heating), Dew point, Air preheater, Heat recovery ventilation, Waste management, Flue-gas emissions from fossil-fuel combustion, Environmental science