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Si S Waste Heat And Distributed Energy White 2007
Si S Waste Heat And Distributed Energy White 2007
Si S Waste Heat And Distributed Energy White 2007
Si S Waste Heat And Distributed Energy White 2007
Si S Waste Heat And Distributed Energy White 2007
Si S Waste Heat And Distributed Energy White 2007
Si S Waste Heat And Distributed Energy White 2007
Si S Waste Heat And Distributed Energy White 2007
Si S Waste Heat And Distributed Energy White 2007
Si S Waste Heat And Distributed Energy White 2007
Si S Waste Heat And Distributed Energy White 2007
Si S Waste Heat And Distributed Energy White 2007
Si S Waste Heat And Distributed Energy White 2007
Si S Waste Heat And Distributed Energy White 2007
Si S Waste Heat And Distributed Energy White 2007
Si S Waste Heat And Distributed Energy White 2007
Si S Waste Heat And Distributed Energy White 2007
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Si S Waste Heat And Distributed Energy White 2007

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Scientists in Schools - Presentation from the Energy and Climate Change Symposium

Scientists in Schools - Presentation from the Energy and Climate Change Symposium

Published in: Economy & Finance, Technology
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Transcript

  • 1. Waste Heat & Distributed Energy Stephen White Waste Heat Stream Leader 7 th February, 2007
  • 2. Today's “centralised” electricity system Large distant power plants supply almost all customers. In Australia the average efficiency is 33.1% Transmission losses Effective energy utilisation ~ 28.5% Distribution losses
  • 3. “ Distributed” generation avoids 50% of your bill (IPART, 1999) Retailer 10% Wholesale 40% Transmission 10% Distribution 40%
  • 4. New distributed power generators 0.5 – 3 kW 5 – 50 kW 30 – 500 kW 5kW – 5MW 30kW – 2MW up to 3 kW Typical Size 10-25% Stirling/ Rankine engines 35-55% Fuel cells 20-35% Microturbine 25-40% Reciprocating engines Renewable Wind turbine Renewable Solar photovoltaic/ thermal Efficiency Type
  • 5. Heat from distributed generation is useful
  • 6. But gas is expensive too - Waste heat is a necessary extra revenue stream Average domestic house (4500kWh) Generator electrical efficiency = 30% Assumed 100% waste heat utilisation South Australia Victoria New South Wales
  • 7. Waste heat research
    • Science
    • Nanoscale materials
      • Catalysts, structures, interfaces
    • Materials fabrication
    • Thermal design
    • Application
    • Heat transport/ transfer
    • Heat conversion
      • Cooling
      • Electricity
      • Desalination
    • Industrial processes
  • 8. Hornsby trigeneration
    • Project Goals
    • Large reduction in CO 2 emissions at a single site
    • Showcase energy efficiency
    • Location
    • Hornsby City Library, Sydney
    • Method
    • Trigeneration (power and cooling)
      • Microturbine
      • Desiccant cooling
  • 9. Tri-generation schematic
  • 10. Trigeneration system during construction
  • 11. Desiccant system model validation Enthalpy removed from the fresh supply air stream Simulated Measured
  • 12. Organic Rankine cycle
  • 13. ORC fluid motor options
    • New Rotary Expander
    • Patented technology development
    • Benefits
      • Simplicity/ robustness/ cost
      • Efficiency
      • Flexibility
      • High capacity
    • Rotary Scroll
    • Immediate availability
      • Semi hermetic
      • Low noise
      • Oil free ?
  • 14. Thermoelectric power generation - The ZT challenge
  • 15. Progress in the challenge
  • 16. What could the future look like ?
  • 17. Thank You Energy Technology Distributed Energy Name Stephen White Title Waste Heat Stream Leader Phone +61 2 4960 6070 Email [email_address] Web www.csiro.au Contact CSIRO Phone 1300 363 400 +61 3 9545 2176 Email [email_address] Web www.csiro.au

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