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Abstract - Decentralized Generation (DG) is expected to play a vital role in the future of electric power system. The power electronics interfaced microturbine. The compressor increases the pressure of the air which then passes through the recuperator, and onto the combuster where it is superheated, and finally delivered to the turbine. The turbine supplies the compressor with power, and the turbine also turns the generator which produces electricity.
The prefix “micro-,“ is commonly known to imply “small.” Where the word “turbine,” is defined as “a device that converts the flow of a fluid (air, steam, water, or hot gases) into mechanical motion for generating electricity (1).” It should follow then that a MicroTurbine is simply a small device that converts fluid flow into mechanical motion for electric generation processes, but how accurate is this definition? According to one source, MicroTurbines can be defined as follows “MicroTurbines are small electricity generators that burn gaseous and liquid fuels to create high-speed rotation that turns an electrical generator with size ranges available from 30 to 400 kilowatts (kW) (2).” But how ‘small’ is small in the case of MicroTurbines? From Figure 1, you can see that a MicroTurbine system appears to be about as large as a household refrigerator unit; keep in mind that this is the entire combined heating and power (CHP) system, and not just the turbine itself. Figure 2 shows the blades found in a steam turbine for industrial power supply applications, the size difference when compared to the MicroTurbine in Figure 1 is simply amazing. As previously mentioned MicroTurbine Unit’s are commonly used in combined heating and power systems (CHP). For the heat generation aspect “in CHP applications, the waste heat from the MicroTurbine is used to produce hot water, to heat building space, to drive absorption cooling or desiccant dehumidification equipment, and to supply other thermal energy needs in a building or industrial process.” In terms of electrical power generation, MicroTurbines, see Figure 3, operate on the same thermodynamic principles as a Brayton cycle, similar to their gas turbine counter parts 2.
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The fuels used in MicroTurbine system commonly include, natural gas, sour gas, gasoline, kerosene, diesel fuel/distillate heating oil, and in some recovery applications waste gases are used that previously would have been released into the environment 2. “The basic components of a MicroTurbine are the compressor, turbine generator, and recuperator (2).” The compressor increases the pressure of the air which then passes through the recuperator, and onto the combuster where it is superheated, and finally delivered to the turbine. The turbine supplies the compressor with power, and the turbine also turns the generator which produces electricity. The exhaust product exiting the turbine then passes through a recuperator where further heat is extracted to be used in the preheating process of air entering the combuster chamber; this reduces the fuel needed to be added into the combuster. Lastly, the remaining exhaust products can be used in the heat generation aspect of CHP systems, by heating air and/or water for HVAC or hot-water supply uses. Advantages and Disadvantages.
Microturbine Generator System Ppt Template
One such waste fuel is in the form of biogas, which is plentiful in landfills. As material is compressed, oxygen content goes down to zero and microorganisms begin to break down the organic compounds in the land fill. 4 Such process releases methane and carbon dioxide, called biogas because it is produced naturally. The landfills in the world are of huge proportions, and the methane they produce accounts for 10% of all worldwide methane emissions, so there is no shortage of this fuel for microturbines.
7 In terms of emissions, the level is lower than in conventional engines. For example, a microturbine build by Capstone produces NOx and unburned methane emissions each at 3 ppmV at 15% O 2. There is another cost besides the dollar value, energy has a reliability cost. The supply of uninterrupted electricity is very important in locations such as hospitals and nuclear power plants.
Furthermore, interruptions result in loss of productivity and output, which can cost a lot of money. Additionally, loss of electricity disrupts our daily lives, which was evident during the large northeastern blackout in 2003. A community or an office complex that uses microturbines increases its energy security and power reliability. In the event of a blackout, enough power can be supplied to keep essential operations going.
Micro turbine seminar report.1.MICRO TURBINEA Seminar ReportSubmitted byRAJNEESH KUMAR SINGHIn partial fulfilment for the award of the degreeOfBACHELOR OF TECHNOLOGYINMECHANICAL ENGINEERINGAtBuddha Institute of TechnologyGIDA, GorakhpurSEPTEMBER 2014-20151.CERTIFICATECertified that RAJNEESH KUMAR SINGH (enrollment no-) has presenteda seminar on “MICRO TURBINE” in partial fulfilment for the award of degree ofBachelor of technology in Mechanical engineering at Buddha Institute of Technology,Gautam Buddha Technical University, Lucknow, U.P. Under our supervision and guidanceduring the academic session 2014-2015Guide Seminar Coordinator Head of Department(Mr Rahul Srivastava) (Mr Ajay Yadav) (Mr Shayam Bihari Lal)2.ACKNOWLEDGEMENTWe place on record and warmly acknowledge the continuous encouragement, invaluablesupervision, timely suggestions and inspired guidance offered by our guide Mr RahulSrivastava, Department of Mechanical Engineering, BUDDHA INSTITUTE OFTECHNOLOGY GORAKHPUR this report to a successful completion.
We considerourselves fortunate to get a chance to work under the guidance of such a dynamicpersonalityLast but not the we thank our parents and the Almighty whose blessings are always therewith us least. I am also thankful to Mr Shyam Bihari Lal, HOD of MechanicalEngineering BUDDHA INSTITUTE OF TECHNOLOGY, GIDA GORAKHPUR for hisconstant support and encouragement.DATE Rajneesh Kumar Singh3M.E IIIrd.ABSTRACTMicro turbines are a relatively new type of combustion turbine that produces both heat andelectricity on a small scale. Micro turbines offer an efficient and clean solution to directmechanical drive markets such as compression and air-conditioning.
This report focuses onthe design and development of a micro turbine driven by compressed nitrogen gas. Theavailable literature regarding the design aspects of micro turbine were reviewed in detail.Gas turbine cycle and operation of micro turbine was studied and reported. The turbineblades and nozzles were designed with the help of Gambit software using a given set ofcylindrical coordinates. The turbine has a radial inlet and axial outlet.
A proper meshingscheme was used to mesh the turbine and nozzle assembly.