Nghe an sugar company nasu, one of the largest sugar companies in vietnam, is planning to replace boiler of the factory that has been running more than 15 years and introduce 20mw 35mw cogeneration system that runs with bagasse from sugar process. Cogeneration is a highly efficient form of energy conversion and it can achieve primary energy savings of. Figure 5 the percentage distribution of biomass on sugar cane plant 6 sugar cane is a very efficient energy crop that converts 2 % of available solar energy into chemical energy. Kakira sugar works cogeneration expansion environmental. The promotion of bagasse cogeneration in sugar mills for surplus power generation is one of the important schemes of meda. All vapor from the system is consumed for sugar process. An example of cogeneration with trigeneration applications in a major city is the new york city steam system. University of palermo, italy abstract in the following a dynamic mathematical model of a generic cogeneration plant with microturbine is described and the corresponding regulating system is realized. In this paper, exergy analysis of a heatmatched bagassebased cogeneration plant of a typical 2500tcd sugar factory, using backpressure and extraction condensing steam turbine is presented. Chapter 5 industrial, commercial, and rural cogeneration opportunities industrial cogeneration large amounts of fuel are used to produce ther mal energy for u. Also, thermal and electric energy are produced for the own factory consumption, using sugar cane bagasse as fuel in cogeneration plants.
Introduction of cogeneration system using bagasse in a. Pdf present work is a case study on sugar industry and economics is worked out for advanced cogeneration power system. Bagassebased cogeneration at hippo valley estates sugar. Cogeneration projects with higher boiler pressure results in low computation of bagasse, resulting in increased operating days. Kassiap deepchand technical manager mauritius sugar authority 1.
Cogeneration projects and boiler evaluations in the colombian sugar industry adolfo gomez adolfo gomez gave a presentation describing the current status of the colombian sugar industry including the current cogeneration status. One of the forms of energy must always be heat and the other may be electrical or mechanical energy. Much emphasis was on an assessment of the quantity of energy that was lost due to inefficient combustion of bagasse and the use of steam that was generated. Reddy3 1department of mechanical engineering, citm, vizianagaram, india 2co 2 research and green technologies centre, school of mechanical and building sciences, vit university, vellore 632014, india.
Sugar plant raw material for the plant is sugarcane is available in ample quantity for the plant. Development and installation of high pressure boilers for co. Cogeneration in indian sugar industry rathod nitin ramrao, abstract cane industry is a large employment generator right from cultivation, harvesting, transportation to sugar processing in india. Pdf performance analysis of cogeneration plant in white. Introduction of cogeneration system using bagasse in a sugar factory. Chapter 5 industrial, commercial, and rural cogeneration. Introduction of cogeneration system using bagasse in a sugar. Guyana bagasse cogeneration project english the world bank. Almost all the sugar cane factories in brazil are selfsufficient in. In practical terms, what cogeneration usually entails is the use of what would otherwise be wasted heat such as a manufacturing plants exhaust to produce additional energy benefit, such as to. A model of cogeneration plants based on smallsize gas. For encouraging sugar factories in developing the cogeneration power project an attractive policy has been declared by gom vide g. When comparing cogeneration plants energygeneration processes, it can be observed that.
Pdf efficient cogeneration scheme for sugar industry. The power plant personnel can concentrate on electricity production, efficiency and system availability. The study investigated the quantity of sugar cane processed and the possible. And in addition, the surplus electricity is supplied to 700. Cogeneration in sugar factory consists of four main processes. The sugar factory requirement at 100% capacity is 12. Kassiap deepchand technical manager mauritius sugar authority. Cogeneration is a highly efficient form of energy conversion and it can achieve primary energy savings of approximately 40% by compared to the separate purchase of electricity from the national. Study of a cogeneration plant in sugar mill by using. Chapfer vi a case study of cogeneration potential in the sugar industry 6. Almost all the sugar cane factories in brazil are selfsufficient in terms of energy supply and in the last few years. Okeelanta cogeneration facility florida department of. Bagasse maharashtra energy development agency govt. Development and installation of high pressure boilers for.
In a conventional power plant, fuel is burnt in a boiler to generate highpressure steam which is used to drive a turbine, which in turn drives an alternator through a steam turbine to produce electrical power. Cogeneration with cane sugar mills in reunion agritrop. Sep 27, 2008 a sugar mill near meerut, north india utilises the waste bagasse from the sugar making process to generate electricity for the factory. Sugar processing is an energy intensive industry that requires precise control and continuous reliability, especially during seasonal production cycles.
Cogeneration the four cogeneration plants in the reportokeelanta, snohomish, lahti, and camasare recent plants, using the latest technology, in traditional niches for biomass power. The efficiency of a cogeneration plant is higher than those achieved when heat and. The excess power is, therefore, exported to the national grid. Technologies for profitable cogeneration factory workshop, 2011 by. Energy optimization system for cogeneration plant of paper factory 161 issue. Cogeneration in the cane sugar industry, volume 12 1st. Case study on bagasse energy cogeneration in mauritius by dr. Guyana bagasse cogeneration project english abstract. India has more than 500 sugar manufacturing units which manufacture sugar from sugarcane. Sugar plant automation and optimization worldwide, sugar mills are being modernized and automated in response to the vital need of more efficient production, to be able to compete globally. Pdf study of a cogeneration plant in sugar mill by using. Cogeneration combined heat and power chp cogeneration cogen through combined heat and power chp is the simultaneous production of electricity with the recovery and utilisation heat.
How do we create green energy the cogeneration process. Typical sugar factory annexed to a cogeneration plant sugar cane factory bagasse low pressure steam grid electricity cogeneration power plant hp steam ce turbo alternator electricity 3. Pdf analysis of cogeneration systems in sugar cane factories. Bagasse based cogeneration power project overview bagasse is a by product of sugar cane that is used as fuel in boilers to produce process steam.
Surplus bagasse produced in our burdekin mills during the crushing season is stockpiled on large, specially designed pads at pioneer to enable the cogeneration facility to continue to operate outside of the crushing season. The average crushing capacity of the sugar factory is 4000 tonnes of cane per day tcd. The florida department of environmental protection is the states lead agency for environmental management and stewardship protecting our air, water and land. Pdf study of a cogeneration plant in sugar mill by using bagasse. The command area of the proposed sugar mill has adequate irrigation facilities, potential for sustained cane supply to the sugar mill and biomass availability. Pdf performance analysis of cogeneration plant in white nile.
Optimum imbibition for cogeneration in sugar factories. The selection and operating scheme of a cogeneration system is very much sitespecific and depends on several factors, as described below. Pioneers cogeneration plant is australias largest generator running only on biomass. Energy management system ems when the operation of the factory is at normal state, each of electric power supply and the volume of generated steam are in balance with the factorys electric load. Energy optimization system for cogeneration plant of paper. High technology and skills can now be created to enable the power plant to work as an independent power producer, a role that is closer to the utility than that of a. In principle, a chp design is independent of the type of heat source, so fossil fuels, organic waste, renewable fuels and nuclear energy are all technically viable options.
The purpose of this book is to set down the unique position of sugar cane in the cogeneration field. In a cogeneration plant, very high efficiency levels, in the range of 75%90%. A sugar mill near meerut, north india utilises the waste bagasse from the sugarmaking process to generate electricity for the factory. Pdf bagasse cogeneration describes the use of fibrous sugarcane waste, bagasse to cogenerate heat and electricity at high efficiency in.
Kakira sugar works cogeneration expansion environmental assessment document no. The consumption of bagasse depends upon the pressure at which steam is produced in boiler. The south african sugar industry is one of the worlds best producers of high quality sugar, producing an average of 2. He described the methodology used to engineer the integration of a cogeneration plant into a sugar. Sugar factory is situated in the sugarcane growing area close to various sources of water in command area. Cane industry is a largeemployment generator right from cultivation, harvesting, transportation to sugar processing in india. Cogeneration or trigeneration production is subject to limitations in the local demand, and thus may sometimes need to reduce e. The cane plant is probably the most efficient utilizer of sun energy for food production, and at the same time provides an equivalent quantity of biomass. Turnkey sugar plant manufacturer bagasse cogeneration plant. David gent spoke of the process of integrating cogeneration into a sugar factory. The bagasse is fired in the boiler for producing steam at high pressure, which is extracted through various single high capacity turbines and used in the process. Electrical power obtained from the cogeneration system usually exceeds the demand for internal use in the factory. The sugar cane containing minimum 30% fiber was referred as bagasse and used the generation of power required for the operation of sugar mill.
The industry combines the agricultural activities of growing sugarcane with industrial factory production of raw and refined sugar. Turnkey sugar plant manufacturer from concept to commissioning with cogeneration plants, milling tandems, diffusers and industrial boilers. Performance assessment of 2500 tcd cogeneration plant sangamesh y g, suchitra g, jangamshetti s h abstract in this paper an energy balance has been carried out for an actual 2500 tcd plant. Bagasse based cogeneration in sugar industry indian sugar industry has to improve the revenue by value addition to the by product. Cogeneration cogeneration is the concept of producing two forms of energy from one fuel. Turnkey sugar plant manufacturer bagasse cogeneration. Sugar cane industry overview and energy efficiency. The bagasse produced in a sugar factory is however used for generation of steam which in turn is used as a fuel source and the surplus generation is exported to the power grids of state governments. Cogeneration bottom compared with conventional generation top if the same end use of 24 units of electricity and 34 units of heat, by opting for the cogeneration route, as in fig 2.
For each 10 tonnes of sugarcane crushed, a sugar factory produces nearly 3 tonnes of wet bagasse. Performance assessment of 2500 tcd cogeneration plant. Sugar factory automation and optimization abb process. Study of a cogeneration plant in sugar mill by using bagasse as a fuel 1 c. Our 38 megawatt racecourse cogeneration plant situated at our racecourse mill produces enough renewable energy to power about 30 per cent of mackay. The aim of the guyana bagasse cogeneration project is to utilize in an efficient manner the bagasse byproduct of the new skeldon sugar factory in generating electricity for internal use as well as for sale to the national grid. The addition of turbogenerator to the sugar manufacturing units completes the cogeneration system for sugar factories. Performance analysis of cogeneration plant in white nile sugar factory sudan. The analysis of the power plant is performed together with.
Sugar juice is extracted from sugar cane stalks in the juice extraction process, of which byproduct is bagasse. The cogeneration plant includes a double extraction cum condensing turbo generator of 18. Sugar cane industry overview and energy efficiency considerations. High technology and skills can now be created to enable the power plant to work as an independent power producer, a role that is closer to the utility than that of a sugar factory that exports excess power to the grid. The cogeneration plant is a part of the existing sugar mill at pudukkottai. Energy management system ems when the operation of the factory is at normal state, each of electric power supply and the volume of generated steam are in balance with the factorys electric load and steam load respectively, and steam. Energy management in the south african sugar industry. Sugar mills have the capacity to export about 100 kwhr power per ton cane.