604 International Sugar Journal | August 2014
Falling-film evaporator plant for a cane sugar factory: Presentation of the concept and operating resultsLehnberger
(1), F. Brahim (1) and S.S. Mallikarjun (2); (1) BMA Braunschweigische Maschinenbauanstalt AG, Germany, (2) Indian Cane Power Ltd, India
In the cane sugar industry, Robert evaporators are generally considered the preferred evaporator design because of the issues associated with the scaling of heating surfaces. An evaporator set concept has been developed in collaboration with a supplier to utilise falling-film evaporators in the cane sugar industry in order to benefit from the numerous advantages of this technology. In 2011, a new 5-effect evaporator set composed entirely of falling-film evaporators was designed, supplied and commissioned for the Indian Cane Power Limited (ICPL), Uttur, a sugar cane factory located in the State of Karnataka, India. The design targets for this evaporator plant were smooth operation of falling-film evaporators in the cane sugar industry, considerable reduction of the steam consumption of the sugar factory and clear increase of power export to the local power supply network. The supplier BMA accompanied this project with the preparation of mass and energy balances, process flow diagrams and process layout concepts. BMA also assisted with commissioning and chemical cleaning of the plant.