International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 04 Issue: 10 | Oct -2017 www.irjet.net p-ISSN: 2395-0072 © 2017, IRJET | Impact Factor value: 6.171 | ISO 9001:2008 Certified Journal | Page 1286 Improvement of Boiler Efficiency Using Bagasse Dryer Salunke V.V. 1 , Deshmukh K.B. 2 , Garud R.P. 3 , Patil A.S. 4 Prof. Kulkarni S.C. 5 1,2,3,4 U G Student Dept. of Mechanical Engineering, S B Patil college of Engineering Indapur, Pune 5 Professor Dept. of Mechanical Engg., S B Patil college of Engineering Indapur, Pune ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - In most sugar industry, sugarcane bagasse is used as fuel to generate steam for sugar Milling and electricity generation. It consists of cellulose, hemicellulose, lignin, ash and moisture Content. The bagasse Moisture content is an important parameter to control combustion in boilers. Simulated bagasse was used to monitor the effects of moisture content on gross calorific value (GCV) and net calorific Value (NCV) and equilibrium analysis. So burning of bagasse at suitable level of moisture is Essential from the viewpoint of boiler performance. Key Words: Bagasse, Fuel, Sugar cane residue, moisture content. 1 Introduction:- Sugarcane based industry has a tremendous potential and its future is bright in many countries including Egypt. It is an old idea to concentrate on producing sugar alone from sugarcane. The by- products of sugar industry (such as bagasse, filter cake and molasses) today attract as much attention as the conventional main product, sugar. The trend in the sugar producing nations now is to concentrate more and more on by-products - thus rendering sugar ironically, as the by-product. In the past, bagasse was considered as waste material. Today, bagasse has become valuable material. Aside from being used as a fuel, it is a starting material for different products such as paper, paper board, fiberboard, particle board, animal feed, etc. In Brazil, todayǯs leader of sugar industry, the emphasis is on developing a variety of cane having up to 25 % of fibre content since more bagasse signifies higher profits. Moreover, in Pakistan, the price of bagasse per ton is higher than the price of sugar cane. The value of bagasse may be more than the value of sugar. So it is necessary to optimize the use of bagasse, because of the competition between its use as fuel in boilers and as starting material. The moisture content in bagasse varies considerably with the degree of extraction, but under average conditions it may be taken as 50 % of the total weight leaving the mills (The average value of the moisture content in bagasse reaches 52 % in almost all the cane sugar factories of the Sugar and Integrated Industries Company SIIC of Egypt in the 1998 harvesting season. The higher the moisture content, the lower is the amount of combustible material per unit weight of bagasse and the total available heat, therefore, varies inversely with the moisture content. Furthermore, the portion of heat which is used to evaporate the bagasse moisture and to superheat the resulting steam to the temperature of the flue gases must be deducted from the total available heat. (Each kg of water in bagasse requires 418 kJ (100 kcal) to reach its boiling point and 2,259 kJ (540 kcal) to convert it into steam. 1.1 Problem Statement During the combustion process in a boiler considerable amount of furnace energy is wasted in evaporating the water contained in the fresh bagasse; therefore decrease the efficiency of combustion. Due to this, it decrease the calorific value, furnace temperature, reduces stability of boilers operation, decreasing the vaporization coefficient and combustion velocity, decreasing the speed of boilers response to load changes and also increment of the losses and decreasing steam production giving rise to flue gases. So in present, work design of such model is necessary which overcomes above parameter up to some extent. 1.2 Objective Objective of this project is to dry the wet bagasse or remove moisture in the bagasse by using bagasse dryer. To improve the efficiency of combustion, increase the calorific value, increasing the furnace temperature, increasing the energy production, increasing the stability of boiler operation, increasing the vaporization coefficient, increasing the combustion velocity, Increasing the speed of boiler response to load changes, reduction of losses, increasing steam production, decreasing flue gases volume. So, above all efficiency improvement parameter can help to increase the output of boiler efficiency. 2. Methodology 1) Firstly determine the moisture content level in wet bagasse & also determine the calorific value & efficiency of boiler. 2) Discuss alternating methods to reduce moisture content up to large extent. 3) Selection proper method. 4) Design of bagasse dryer system.