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Group 07 Development Presentation

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Group 07 Development Presentation

  1. 1. ITI Energy, College London
  2. 2. Our Client  ITI Energy Limited  Working in conjunction with Scotwaste  Environmentally friendly company  Specialises in gasification technology  Developed patented advanced gasification design  10 years experience
  3. 3. The Brief  Design buildings, fuel handling, ash handling and other buildings  8 Gasifiers using ITI technology  Investigate and recommend most suitable  MBT technologies  Technology for pellet manufacture  Advise on use of excess heat and bottom ash
  4. 4. Site Location 1 km North of Junction 4, M8 2.5km from Bathgate rail station Situated in the County of West Lothian, South West of Edinburgh
  5. 5. General Process Municipal Solid Waste Mechanical Biological Treatment Fuel Manufacturing Gasifier Syngas ElectricityExeter EfW Plant http://www.exeter-labour.org.uk/2012/05/08/energy-from-waste-plant/
  6. 6. Environmental & Waste Regulations  Industrial Emissions Directive 2010/75/EU  Integrated Pollution Prevention and Control Directive 2008/1/EC  Waste Incineration Directive 2000/76/EC  Environmental Protection Act 1990  Pollution Prevention and Control Regulations 2000  Environmental Permitting Regulations 2010
  7. 7. Health and Safety  Welfare  clean, comfortable working environment, comfortable and appropriate equipment  Accidents  slips, trips and falls, appropriate PPE, vehicle traffic, cuts and infections, appropriate and well maintained machinery  Emergency procedures  emergency shutdowns, fire evacuation plans, serious injury response
  8. 8. Main Income Streams  Renewable Obligations Certificates  received at a rate of about 2 per hour during normal operations  can be sold to national electricity suppliers for about £40 each  Gate fees for receiving waste  a typical MBT plant receives about £80 per tonne of waste  Selling generated electricity to a national supplier
  9. 9. Mechanical Biological Treatment  Purpose:  Reduce amount of waste going to landfill  Reduce environmental impact  Mechanical Processes  Sorting  Biological Processes http://www.etan.com.sg/biological2.php
  10. 10. MBT - Mechanical  Bag Splitters and Shredders  prepare material for mechanical sorting  Industrial Magnets  ferrous metals  Eddy Current Separator  non-ferrous metals  Ballistic Separation and Air Classification  aggregate, glass, ceramics
  11. 11. MBT – Biological  Three typical processes  Aerobic composting  Aerobic bio-drying  Anaerobic digestion  Aerobic bio-drying most suitable treatment  Partial aerobic decomposition to dry and stabilise waste  Outputs solid recovered fuel (SRF)  SRF used in gasification to produce energy
  12. 12. Pellets  The Gasifier takes pellets as its input  Improved performance  More dense  Less moisture  More homogeneous  Greater calorific value  14 briquetting machines http://www.tajagroproducts.com/images/NE  270 000 pellets per hour W%20FILE%20IMAGES/bricket_10452474.jpg  100 000 tonnes of pellets per year
  13. 13. Pellet Transport Briquetting machines  5 Day Storage  Gasifiers  Conveyor belts for transport  Smart conveyor system  Takes pellets to appropriate gasifier  Potentially weigh at either end of the conveyor
  14. 14. Gasifier  Type of Advanced Thermal Treatment  Continuous thermal decomposition process  Produces fuel gas which can be used to produce electricity with an internal combustion engine
  15. 15. Power Generation & Grid Connection  Power produced by the gasifiers is sold to the grid  Scottish Energy Transmission  33kV national grid connection in nearby Bathgate  Possibility of private connections closer by.(Energy Networks Association, 2011)
  16. 16. Heat Exporting  Recoverable heat is approximately 115% of gross power output Heat Exporting  Two main ways of exporting energyDirect District Organic Rankine Heating Cycle  No considerable heat demand in the area  Consequences of direct district heating system failure are too high
  17. 17. Organic Rankine Cycle Organic Rankine Cycle (ORC) converts heat into electrical work. The heat is externally supplied to a closed system where high molecular mass fluid is used as working fluid ORC can particularly benefit smaller stations making plant operation more profitable (Pratt & Whitney Power Systems, n.d.)
  18. 18. Ash  Inorganic or mineral content of biomass, which remains after gasification.  non-hazardous waste  amount of ash differs from types of feedstock  Uses:  Raw material for cement, bricks, structural fill, aggregates for concrete, road materials, land reclamation, soil modificationRESI Corporation, http://www.resi.com.tw/Fluidization.htm
  19. 19. Site Design Looking ahead:  Main Structures  MBT  Gasifier Plant  Site Logistics  Entrance/Exit  Roads  Storage  Numerous Considerations  i.e. proximity of households, legislation, etc…
  20. 20. Design Selection  Appealing Design  Case Studies  Severnside energy from waste plant  Exeter  Amagerforbraending (Denmark) http://www.bustler.net/index.php/article/big_puts_a_ski_slope_on_chttp://www.utilityweek.co.uk/news/images/195878.jpg openhagens_new_waste-to-energy_plant/
  21. 21. Schedule and Critical ActivitiesWeek 1: Preliminary ResearchWeek 2: Technical Decisions and Site Layout  MBT equipment selection  Pelleting Method  Power connectionWeek 3: Logistics and Building Design  On-site Transportation  Storage  Structural DesignWeek 4 & 5: Finish Tasks, Finalise Report and Extras  Visitors Center  Monitoring & Landscaping

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