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GREEN GOWN AWARD 2008 DALHOUSIE BUILDING

GREEN GOWN AWARD 2008 DALHOUSIE BUILDING. DEREK MITCHELL ENERGY MANAGER JUNE 2009. The Project. Take a previously untapped source of heat from our CHP Plant and use it to provide most of the heat required for our new Dalhousie building.

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GREEN GOWN AWARD 2008 DALHOUSIE BUILDING

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  1. GREEN GOWN AWARD 2008 DALHOUSIE BUILDING DEREK MITCHELL ENERGY MANAGER JUNE 2009

  2. The Project • Take a previously untapped source of heat from our CHP Plant and use it to provide most of the heat required for our new Dalhousie building. • 3 heat exchangers were fitted in the lubricating oil circuit of the 3 Jenbacher CHP engines providing low grade heat at 47/37 deg C flow and return temperatures. • Run over 150 metres of 125mm ID flow and return Pipe 2000 plastic pipework between the Boilerhouse and Dalhousie Building. • Plant within the Dalhousie building was oversized to accommodate the lower design temperatures.

  3. Other Environmental Features • Air conditioning in only one Lecture theatre controlled by CO2 detector • Natural ventilation in all other rooms • Solar shading • Enhanced U Values • Lighting control systems • Inverter drives on air handling plant • Power factor correction

  4. Secrets of our Success • Innovation • Determination • Teamwork • Post-Evaluation

  5. Innovation 1976 – District heating scheme 1997 – 3 MW combined heat & power plant 1998 - Free Cooling Air Blast Radiator System 2000 – Building Energy Management System 2001 – Micro CHP 2007 – Absorption Chiller (Tri-Generation)

  6. Determination to overcome barriers • Additional space requirements for oversized plant. • Additional financial costs of approx £100,000. ( Life cycle costing exercise ) • The “Risk Factor” - It may not work.

  7. Teamwork

  8. Post-Evaluation

  9. Headline Benefits • 60 % of teaching block heated from VLTHW Circuit. • Financial savings of £15,000 p/a • Annual CO2 savings of over 100 tonnes p/a from VLTHW Circuit alone.

  10. Additional Future Benefits • Carbon Standard • Climate Change Declaration • Carbon Management Programme • Carbon Reduction Commitment

  11. Not only CHP • Wind Turbine • Ground Source Heat Pump • Solar Panel Installation • Heat Recovery • Voltage Optimisation

  12. Dalhousie Building

  13. Dalhousie Building Entrance

  14. Entrance Foyer

  15. Lecture Theatre – Mechanical Ventilation

  16. Plantroom VLTHW Heat Exchanger

  17. Energy Performance Certificate

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