Analysis of fin characteristics for overall heat transfer in boiler economizer

Thermal Science

Murugan Sivaraj¹  Tufa Mebratu¹  Arockiaraj Godwin Antony²  Alagesan Sivapragasam³  Kanthasamy Ganesan Saravanan³  Shanmugam Padmavathy⁴ 

[1] Department of Mechanical Engineering, Faculty of Manufacturing, Institute of Technology, Hawassa University, Hawassa, Ethiopia;Department of Mechanical Engineering, K.Ramakrishnan College of Technology (Autonomous), Tiruchirappalli, India;Department of Mechanical Engineering, Sona College of Technology, Salem;M.Kumarasamy College of Engineering, Thalavapallayam, Karur, Tamilnadu, India;

关键词: fin gap;    tube diameter;    economizer;    heat transfer;    taguchi;    doe;   

DOI  :  10.2298/TSCI200730154K

来源: DOAJ

【 摘 要 】

The boiler efficiency is improved with the help of economizer it is one of the main accessory part in the boiler. Boiler feed water is preheated with the entry of re-used flue gas through economizer. This present work is planned to analyse the overall heat flux and overall heat transfer in the boiler economizer. Higher amount of flue gases passing around the economizer to preheat the feed water at the same time much more heat is transferred. The heat transfer is analysed by statistical method with influence of different process parameters. Economizer fin dimensions are major consideration to taken for this analysis and estimate the overall heat flux and overall heat transfer. The process parameters of this study are named as thickness of the fin (3.5 mm, 4 mm, 4.5 mm, and 5 mm), height of the fin (4 mm, 5 mm, 6 mm, and 7 mm), fin gap (12 mm, 14 mm, 16 mm, and 18 mm, and tube diameter (44 mm, 46 mm, 48 mm, and 50 mm). The response values are finding as overall heat flux and overall heat transfer.

【 授权许可】

Unknown