Evolution of performance of Primary and Secondary Air preheaters
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), V22(7),311-314 April 2015. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
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.
References
[1]. P.N.Sapkal, P.R.Baviskar, M.J.Sable, S.B.Barve ? “ To optimise air
preheater design for better performance”. NEW ASPECTS of FLUID
MECHANICS, HEAT TRANSFER and ENVIRONMENT. ISSN: 1792-4596,
ISBN: 978-960-474-215-8, PP.61-69.
[2]. Pipat Juangjandee ? “Performance Analysis of Primary Air Heater
Under Particulate Condition in Lignite-Fired Power Plant” Engineering,
Computing and Architecture, ” ISSN 1934-7197,vol 1,issue 2,2007
[3]. Bostjan Drobnic, Janez Oman. ? “A numerical model for the analyses of
heat transfer and leakages in a rotary air preheater” , International Journal of
Heat and Mass Transfer 49, PP.5001–5009, 2006.
[4]. Stephen K.Storm,john Guffre, Andrea Zucchelli ”Advancements with
Regenerative Airheater Design, Performance and Reliability” POWERGEN
Europe 7-9 June 2011.
[5] P.N.Sapkal, P.R.Baviskar, M.J.Sable, S.B.Barve, “Optimization of Air
Preheater Design for the Enhancement of Heat Transfer Coefficient”,
International Journal of Applied Research in Mechanical Engineering
(IJARME), ISSN: 2231 –5950, Volume-1, Issue-2, 2011.
Keywords
Air Pre-heaters, Flue Gas Exit Temperature, Air
heaters Leakage.