Bagasse cogeneration is also the basis of power generation efficiency in cubas sugar industry. India is one of the largest sugarcane growing nations with an estimated production of around 300 million tons in the marketing year 200910 3. Cogeneration of power in the sugar industry is an important source of revenue. Besides, sugar production process, the concept of cogeneration in the context of sugar industries, energy efficiency improvement concepts in sugar mills and stateoftheart technologies are briefly discussed. 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. Design of a cogeneration plant for sugar industries using. The most important performance parameters used to assess the steam turbine cogeneration plants in general and sugar mill cogeneration plants in particular are defined and developed. Sugar cane industry overview and energy efficiency. Cane sugar mills and power cogeneration stations in reunion. By replacing low ef ficiency mill turbines with hydraulic drives and dc motors, cogeneration power increases in sugar mill to operate at high ef ficiency 6570%. This is the widely practiced cogeneration plant configuration in the sugar industry. Cogeneration plants using backpressure and condensing steam turbines perform with energy first law and exergetic second law efficiency of approximate ly.
Chp delivers stable power supply for industry utilising the local natural gas supply network gas enginebased cogeneration systems provide a stable supply of electrical power that, if needed, can be isolated from the local electricity grid. The conventional method of power generation and supply to the customer is wasteful in the sense that only about a third of the primary energy fed into the power plant is actually made available to the user in the form of electricity figure 7. The study estimated the potential for extra power generation in the sugar industry of gujarat and maharashtra as. The thermal efficiency defined for a conventional power plant has less relevance to cogeneration plants, which provide both process heat and electrical power. Mw of new local power generation projects in sugar industry. Analysis of exportable power from sugar industries is an important aspect of the disclosure on grid integration of captive cogeneration plant and resulting environmental impact. Industry support grower development account invested over r206 million for the development of black growers in the industry sugar industry trust fund for education. Some steam can be sent through a turbine that turns a generator, producing electric power. Proposed work is a case study on sugarcane industry and economics is worked out for advanced cogeneration power system. This paper gives an overall view of the performance of sugar industries, especially for bagasse cogeneration plants generating electricity. The global sugar industry has almost 120 producers, including the individual eu member states. The conventional method of power generation and supply.
Basic heatto power ratios of the cogeneration system variants are shown in table 2. Energy cogeneration in sugarcane industries located in brazil is a practice that has been growing in last years. 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. Since, the sugar mills in india consume their own bagasse to run their mills during the season and generate steam to run the boilers and turbines.
How much of energy is lost in transmission and distribution of electricity. This process has been taken further to a stage where sugar companies can export a substantial amount of energy to the grid. Realization of the first successful bagassepowered cogeneration. Oct 12, 2017 using bagasse to generate power represents an opportunity to generate significant revenue through the sale of electricity and carbon credits. Bagasse cogeneration plant manufacturer sugar mill. From sugar industry sugar industry is identified as one such nonconventional energy source because it uses renewable sugar cane crop as the raw material, which gives capital fuel bagasse with appreciable calorific value. Cogeneration concept is not applicable to which type of industry. Bagasse and blended biomass cogeneration advances in the. Cogeneration in the hawaiian sugar industry sciencedirect. By replacing low efficiency mill turbines with hydraulic drives and dc motors, cogeneration power increases in sugar mill to operate at high efficiency 6570%. Backing the need of the sugar industry, we provide backpressure steam turbines that have high flow rates and backpressure conditions. Development and installation of high pressure boilers for co. Handbook for cogeneration and combined cycle power plants by meherwan boyce.
Modern power plants use higher pressures, up to 87 bars or more. Criteria such as energy utilization factor, heatto power ratio, fuel energy savings ratio, exergetic efficiency and power generated per tonne of cane tc prove to. Cogeneration at yash paper mills ge energys jenbacher biogas engine powers cow manure methane cogeneration plants in india. Present work is a case study on sugar industry and economics is worked out for advanced cogeneration power system. Chapter 5 industrial, commercial, and rural cogeneration. Cane industry is a large employment generator right from cultivation, harvesting, transportation to sugar processing in india. In 20, there were 5 cogeneration power plants annexed to sugar mills into operation.
Cogeneration in the cane sugar industry, volume 12 1st edition. Statistical modeling of steam generation for cogeneration. Cogeneration or combined generation of power and steam in the sugar industry simultaneously generates electricity and superheated steam by burning 4050% moisture content of wet basis bagasse used. Cogeneration in the hawaiian sugar industry 233 hydroelectric power played a major role in the electrification of the hawaiian sugar industry, especially during its earlier years. Heatto power ratios and other parameters of cogen systems cogeneration system. Plants established in recent times are all integrated complexes. South africa further ranked as the 11th largest exporter globally. Using bagasse in power cogeneration sugarcane cogeneration. Cfa and fiscal incentives available for biomass power. On this channel you can get education and knowledge for general issues and topics. This replacement can aid increase of power to gird, resulting in additional revenue for sugar plant. Pdf performance analysis of cogeneration plant in white nile. Pdf present work is a case study on sugar industry and economics is worked out for advanced cogeneration power system. Cogeneration systems serve two purposesgenerate electricity from steam using waste materials obtained during industrial process and also process heat for industry itself.
Cogeneration based on rankine cycle is not new to the sugar industry. Alternative the objective is to avoid the emissions of 4. Our eight sugar mills have a total generation capacity of 199 megawatts, producing 600,000 megawatt hours a year. Cfa and fiscal incentives available for biomass power generation and bagasse cogeneration projects biomass power projects generating 999 mw and 158 bagasse cogeneration projects generating 1666 mw of surplus energy to feed to. By replacing low efficiency mill turbines with hydraulic drives and dc motors, cogeneration power increases in sugar mill to operate at high efficiency 65 70 %. Pdf study of a cogeneration plant in sugar mill by using bagasse. Sugar industry by and large is self sufficient in own fuel and power and it is the only industry which. Kassiap deepchand technical manager mauritius sugar authority 2 content of presentation. Simultaneous with the development of distancetransmission of electricity, sugar cane processors started cogeneration, making use of the cane plant to supply the power for its own processing, and in recent years excess power for export. Cogeneration with cane sugar mills in reunion agritrop. Ppt case study on bagasse energy cogeneration in mauritius. Hydropower was introduced to hawaii in 1897, at waianae on the island of oahu when electricity from a hydro generator was used to power three pumps 300 kw total to.
Mauritius and reunion islands have implemented state of the art technology in bagasse energy cogeneration. The share of energy from captive power plants represented 36% of the total requirement. 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. Gas engine industrial cogeneration systems can provide significant financial savings on fuel costs used to provide electricity and heat. Surplus energy can be exported to the grid of distribution licensees.
Additionally, cogeneration of heat and power allows sugar producers to meet their internal energy requirements and drastically reduce their operational costs, in many cases by as much as 25%. Cogeneration in the cane sugar industry, volume 12 1st. Cogeneration project set the bar that is now the standard for reducing co2 emissions for all new fossilfuel power plants in oregon. The purpose of this book is to set down the unique position of sugar cane in the cogeneration field. India is the second largest producer of sugar cane in world after brazil.
Grid integration studies of captive and cogeneration plant in. Cogeneration or combined heat and power chp is defined as the sequential generation of two different forms of useful energy from a single. Bagasse energy cogeneration potential in the zimbabwean sugar. Using bagasse in power cogeneration free download as powerpoint presentation.
Performance assessment of 2500 tcd cogeneration plant. Bagassebased cogeneration in pakistan bioenergy consult. The term power generation in the engineering sense implies the production of mechanical or electrical power from some other source of energy e. Cogeneration in belize diversifying the sugar cane industry by robert tillett chief plant engineer belize sugar industries limited powerpoint ppt presentation free to view fuel cost allocation in cogeneration production of power and water abu dhabi water and electricity company adwec meed 3rd middle east power and desalination. Power cogeneration in the sugar and alcohol sector in the sugarcane industry, cogeneration is fuelled by the bagasse residue of sugar refining, which is burned to produce steam. These turbines have roundtheclock capacity of generating power and steam. One of the forms of energy must always be heat and the other may be electrical or mechanical energy. In this configuration, the cogeneration plant generates, only that much of steam, what is required for process heating as it is a heatmatched plant and surplus bagasse is saved. Tapping the power of cogeneration i oregon state university. In this case, cogeneration plant chp, combined heat and power. This has created a new surge of interest among the sugar mills for surplus power generation during the. The scale of power generation is estimated between 20 mw to 35 mw in which about 6 mw is used within the plant. The conditions in india demand sugar industries to generate and sell the electricity.
Almost all the sugar mills in pakistan have inhouse plants for cogeneration but they are inefficient in the consumption of bagasse. Installation of our own steam turbine in the first cogeneration plant is. Pdf analysis of cogeneration systems in sugar cane factories. Thermal power plants are a major source of electricity supply in india. This paper builds up an energy balance for an operating plant and estimates the magnitude of. The steam consumption in sugar mills at present varies from 480550 kgtc, while electricity consumption ranges between 1622 kwhtc 3240 kwhtc for electrified mills. In some countries the government provides tax benefits to the owner of combined heat and power plants. Exergy analysis of cogeneration power plants in sugar. Cogeneration plants using backpressure and condensing steam turbines perform with energy first law and exergetic second law efficiency of approximately 6070 % and 2225%, respectively. Higher pressure and temperature are critical for increasing the cycle efficiency and power output. Established in 1965, assisted over 10 000 students from rural and urban communities with bursaries, various interventions at a school level such as maths and science. It is on this basis that the potential for cogeneration in zimbabwes sugar industry is being examined. Book discusses the design, fabrication, installation, operation, and maintenance of combined cycle power plants.
Tapping the power of cogeneration facts about klamath cogeneration project owner. The steam turbine based cogeneration system can be considered over a large range of heatto power ratios. In the sugarcane industry, cogeneration is fuelled by the bagasse residue of sugar refining, which is burned to produce steam. The sugar cane containing minimum 30% fiber was referred as bagasse and used the generation of power required for the operation of sugar mill. Cogeneration the process of using steam to turn turbines and generate power allows a plant to reduce its reliance on external electrical energy purchases. India has more than 500 sugar manufacturing units which manufacture sugar from sugarcane. Figure 1and figure 3clearly illustrate that from a fuel utilization perspective, cogeneration system performances are significantly better than typical steam turbine or gas turbine combined cycles that are designed to only produce power.
Almost all the sugar cane factories in brazil are selfsufficient in terms of energy supply and in the last few years some of them have been selling their surplus for the grid. What are the efficiency figures for a conventional power plant. Market studies 1 have indicated that an additional power of 3500 mw can be generated through the use of cogeneration in the sugar industry. This article discusses best practices for the selection, operation, integration, and control of steam cogeneration systems. 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. Scribd is the worlds largest social reading and publishing site. Inthe future, the implementation of advanced cogeneration systems such as biggt thatwould further increase the power generation in the sugar mills would be a step closer,since trash recovery would be already set, adding to bagasse the necessary fuel supplyto run the plant year round. The analysis of the power plant is performed together with the steam demand reduction of sugar production process once the two systems are interlinked.
Industrial cogeneration through combined heat and power. Global trends in cogeneration of bagasse blogging hub. 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. Gas engines based cogeneration, or combined heat and power chp, offers a range of potential benefits to industrial applications. The group has 6 power plants, 3 in up and 3 in bihar with combined capacity to produce 112 mw of power.
A manufacturing and engineering solutions conglomerate with operations in sugar production, power cogeneration, distillery, industrial gearing and water treatment solutions, triveni services key priority sectors of sugar, power generation and water management with its 10 manufacturing locations across india. In its 20 yearbook the international sugar organisation iso ranked south africa as the 18th largest sugar producer globally. Handbook for cogeneration and combined cycle power plants. The conventional method of power generation and supply to the customer. Lanxess india, the subsidiary of german specialty chemicals company lanxess ag, has started up the production of a stateoftheart cogeneration power plant at. The cogeneration system produces steam at both 170 and 70 psig, plus 23 percent of the plant s electrical needs. Sugar series cogeneration in the cane sugar industry. Sugar cane industry overview and energy efficiency considerations. As the sugar industry operates seasonally, the boilers are normally designed for multifuel operations, so as to utilize mill bagasse, procured bagassebiomass, coal and fossil fuel, so as to ensure year round operation of the power plant for export to the grid. Bagasse is the fibrous matter that remains after sugarcane or sorghum stalks are crushed to extract their juice and is a by product generated in the process of manufacture of sugar. The system generates less than the electric load needed onsite because of the extremely low retail electricity rates and purchase power rates in the region see tables 19 and 34. A very positive development for promotion of cogeneration is the formation of cogeneration association of india, known as cogen india. Burning bagasse also removes a waste product through its use as a feedstock for the electrical generators and steam turbines. The cogeneration principle has been used in cuba since the very beginning of the 20th century.
Pdf present work is a case study on sugar industry and economics is worked out for advanced. This study aimed at investigating exportable power from indushankar sugar industry pvt ltd. Hence in cogeneration projects highpressure boiler configurations of 67 bar or 87 bar or 105 bar are used against the conventional 32 bar or 42 bar pressure boilers used in the sugar mill. Power cogeneration in excess of captive consumption has become a major activity for sugar industries. Cogeneration is the concept of producing two forms of energy from one fuel. Now a days sugar distillery cogeneration complexes, integrating the production of cane sugar and ethanol, constitute one of the key agro based industries. Kassiap deepchand technical manager mauritius sugar authority is the property of its rightful owner. Case study on bagasse energy cogeneration in mauritius by dr. October 05, 2016 list of abbreviations aph air pre heater ccp captive cogeneration plant cpm pert critical path method program evaluation. In order to have a significant increase in generation capacity of electricity in sugar factories, advanced cogeneration systems are used. Chapfer vi a case study of cogeneration potential in the sugar industry 6.
The book has been written to provide an overall view for the experienced engineer working in a specialized aspect of the subject and for the fresh engineering graduate or undergraduate student who is being. Also, thermal and electric energy are produced for the own factory consumption, using sugar cane bagasse as fuel in cogeneration plants. Some industrial processes can also exploit chp technology, for example where fuel is burned to provide heat for a furnace, as in the iron and steel industry. Cogen india provides a platform for bringing together all concerned, in any manner, including cogenerators, power utilities, users of electricity, state central government ministries, departments and other bodies, suppliers of equipment and services, academic. Through separate heat and power route the primary energy input in power plant will be 60 units 240. Pdf efficient cogeneration scheme for sugar industry. It is also known as combined heat and power technology. Cogeneration is a highly efficient form of energy conversion and it can achieve primary energy savings of. If a separate boiler is used for steam generation then the fuel input to boiler will be 40 units 340.
We create enough renewable electricity to allow for significant quantities to be exported into the queensland power grid. The biggest challenge facing energy industries is to satisfy the ever increasing. This article describes the basic economics behind cogeneration. Introduction of cogeneration system using bagasse in a. Kassiap deepchand technical manager mauritius sugar authority 1 case study on bagasse energy cogeneration in mauritius by dr. The sugar units today are integrated plants which apart from manufacturing sugar, generate power and supply to the grid and also have distillery to produce ethyl alcohol. Apr 17, 2020 considering the fact that pakistan is among the worlds top10 sugarcane producers, the potential of generating electricity from bagasse is huge.