Boiler Flue Gases Waste Heat Recovery For Bagasse Drying - Rohatgi, Nirupam;Dubey, Rahul;Prajapati, Om Shankar
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Bagasse is a fibrous leftover of the cane after extraction of its juice. It weighs about 1/3 of the weight of the cane. The sugar mills traditionally use surplus bagasse for steam generation/power generation. Flue gases exiting air pre-heaters have a temperature of about 180 °C. In most of the sugar mills, the hot flue gases are directly discharged into the atmosphere after wet scrubbers or dust collectors. It is possible to use the heat of the flue gases to dry bagasse and improve the efficiency of the boilers. A survey of three large sugar mills (10,000 Tons of crushing per day) was done to…mehr

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Produktbeschreibung
Bagasse is a fibrous leftover of the cane after extraction of its juice. It weighs about 1/3 of the weight of the cane. The sugar mills traditionally use surplus bagasse for steam generation/power generation. Flue gases exiting air pre-heaters have a temperature of about 180 °C. In most of the sugar mills, the hot flue gases are directly discharged into the atmosphere after wet scrubbers or dust collectors. It is possible to use the heat of the flue gases to dry bagasse and improve the efficiency of the boilers. A survey of three large sugar mills (10,000 Tons of crushing per day) was done to study the viability of FGWHR for bagasse drying. It was found that bagasse drying can significantly improve the efficiency of the boiler. Based on the economic analysis, it is recommended that large sugar mills shall readily adopt FGWHR for bagasse drying.
Autorenporträt
Dr. Nirupam Rohatgi is working as Associate Professor in the Department of Mechanical Engineering at Malaviya National Institute Technology, Jaipur. He has done his Ph.D. (Mech.Engg.), M.Tech. (Energy), and B.Tech. (Mech.Engg.) from Indian Institute of Technology, Delhi. His research interests include CFD and thermal energy systems.