Evolution of performance of Primary and Secondary Air preheaters

Bade Venkata Suresh; Yegireddi Shireesha; Dr. B. Sateesh

doi:https://doi.org/10.14445/22315381/IJETT-V22P265

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Volume 22 | Number 2 | Year 2015 | Article Id. IJETT-V22P265 | DOI : https://doi.org/10.14445/22315381/IJETT-V22P265

Evolution of performance of Primary and Secondary Air preheaters

Bade Venkata Suresh, Yegireddi Shireesha, Dr. B. Sateesh

Citation :

Bade Venkata Suresh, Yegireddi Shireesha, Dr. B. Sateesh, "Evolution of performance of Primary and Secondary Air preheaters," International Journal of Engineering Trends and Technology (IJETT), vol. 22, no. 2, pp. 311-314, 2015. Crossref, https://doi.org/10.14445/22315381/IJETT-V22P265

Abstract

The primary objective of the air heater is to increase the thermal efficiency of the process. The purpose of the air pre heater is to recover heat from the boiler flue gas, which increases the thermal efficiency of the boiler by reducing the useful heat lost in the flue gas. For every 200 C drop in the flue gas exit temperature, the boiler efficiency increases by 1%. Air heater performance procedure provides a systematic approach for conducting routine air heater performance tests on tubular and rotary regenerative air heater. Various performances indices like air heater leakage, gas-side efficiency, x-ratio etc can be determined using this procedure.

Keywords

Air Pre-heaters, Flue Gas Exit Temperature, Air heaters Leakage.

References

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