Econet Presentation 2007 Eng

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Presentation of Econet - innovative heat exchanging solution by Flakt Woods.

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Econet Presentation 2007 Eng

  1. 1. ECONET © Fläkt Woods 1
  2. 2. High Efficient Energy recovery systems Fläkt Woods is a world leader in energy recovery systems for air handling units. The most popular systems are: Run around coils solutions, ECONET or Ecoterm  No risk of odour and bacteria transfer  Free to separate the supply air unit from the exhaust air unit Rotary heat exchanger  Good heat recovery efficiency  Risk of odour and bacteria transfer Plate heat exchanger  Simple solution  Moderate heat recovery  Small risk of odour and bacteria transfer © Fläkt Woods 2
  3. 3. ECONET® The new heat/cooling recovery system The traditional way The ECONET way Unique for ‘runECONETcoils’ Unique for the around way 1 component, 4 functions  Flexible installation and performance  Noleakage between the supply and return air lower pressure drops,shorter AHU Increased heat recovery efficiency 60…75% performance (no odour and bacteria transfer) Able to use coolingfor corrossive and polluted air  Can also be used recovery Allways prepared for cooling and cooling recovery Possibility to utilize process/waste heat Perfect for district cooling/heating © Fläkt Woods 3
  4. 4. ECONET® References, hygienical application Hospital/pharma applications more than 200 (totally > 950) systems sold. ECONET® Janssen Pharmacia: Antwerpen - Belgium ECONET® ECONET® Lindisbergs lasarett: Lindisberg - Sweden ECONET® Linköping: Linköping - Sweden ECONET® ECONET® ECONET® Jyväskylän keskussairaala: Jyväskylä - Finland ECONET® ECONET® Central hospital: Karlstad - Sweden ECONET® Hospital Raahe: Raahe - Finland ECONET ® ECONET® ECONET® ECONET® University hospital: Stavanger - Norway ECONET® ECONET® Turku hospital TYKS: Turku - Finland Odense hospital: Odense - Denmark Hospital St Olav: Trondheim - Norway ECONET® Raisio hospital: Raisio - Finland Brönnöysund hospital: Brönnöy - Norway Seinäjoki hospital, Seinäjoki - Finland © Fläkt Woods 4
  5. 5. ECONET® Benefits (investment)  ECONET reduces the investment costs  Reduces the size of the chiller  Reduced cold water flows, pipe work dimensions  Reduces the size of the boiler  Reduced hot water flows, pipe work dimensions  Can utilize cheap waste heat  Reduced energy costs  Better energy recovery  Possibility to use waste heat  Smaller foot-print  1 component instead of 3 components in the supply air unit  Shorter installation time  Pre-fabricated pump unit with pre-programmed control box. © Fläkt Woods 5
  6. 6. ECONET® Benefits (impact of heating and cooling network) Berlin: No recovery Ecoterm ECONET® 8,8 m³/s, 31 680 m³/h, winter -12°C -> 20 °C summer 32°C -> 16 °C AHU size EU-53 Cooling Chiller size 238 kW 238 kW 167/120 kW Cold water flow 9,4 l/s 9,4 l/s 2,6 l/s Heating Boiler size 338 kW 149 kW 99 kW….0 kW Hot water flow 4,0 l/s 1,8 l/s 0,6 l/s © Fläkt Woods 6
  7. 7. ECONET® Case cooling Reduction of cooling power by utilizing cooling recovery and IEC (95 kW) The exhaust air 28°C 18°C 19°C 24°C 24°C 238 kW 22ºC (120 kW) 11°C 32°C 16°C The supply air 44% of the cooling power needed taken from cooling recovery © Fläkt Woods 7
  8. 8. ECONET® Example, Westend First Frankfurt 50% of the cooling power needed taken from cooling recovery © Fläkt Woods 8
  9. 9. ECONET® Case cooling Reduction of cooling power by utilizing cooling recovery (50 kW) The exhaust air 29°C 18°C 24°C 24°C 26ºC (167 kW) 11°C 32°C 16°C The supply air 23% of the cooling power needed taken from cooling recovery © Fläkt Woods 9
  10. 10. ECONET® Case cooling, impact of chiller and pipework ECONET combined with a chiller Cooling recovery + IEC 120 kW, 9/15°C, 4,8 l/s 9/20°C, 2,6 l/s Or or Cooling recovery 167 kW, 9/15°C, 6,6 l/s 9/24°C, 2,6 l/s •Reduced size of chiller •Reduced size of pipe work •Reduced liquid flow •A higher evaporating temperature in the chiller gives us a smaller and a more efficient chiller The traditional way 238 kW, 6/12°C, 9,4 l/s © Fläkt Woods 10
  11. 11. ECONET® Case cooling, impact of chiller Chiller size Reduction of the chiller: 100.00 % 90.00 % 80.00 % By 30%, utilizing cooling 70.00 % recovery 60.00 % 100 % 100 % 50.00 % 40.00 % 70 % By 50 %, utilizing cooling 30.00 % 50 % recovery combined with IEC 20.00 % 10.00 % 0.00 % No recovery Traditional energy recovery ECONET ECONET utilizing waste heat or/and IEC Reduction of the chiller size Berlin: 8,8 m³/s, 31 680 m³/h, CAV, 8760 h/year, summer 32°C -> 16 °C, size EU-53, 100% => 238 kW (chiller) © Fläkt Woods 11
  12. 12. ECONET® Case cooling, impact of pipe work Cold water flow Reduction of the cold 100.00 % water flow: 90.00 % 80.00 % 70.00 % By approx. 70% by using 60.00 % 100 % 100 % ECONET 50.00 % 40.00 % 30.00 % 20.00 % 28 % 28 % 10.00 % 0.00 % No recovery Traditional energy ECONET ECONET utilizing recovery w aste heat or/and IEC Reduction of cold water flow inside the building Berlin: 8,8 m³/s, 31 680 m³/h, CAV, 8760 h/year, size EU-53, 100% => 9,4 l/s(cold water flow) © Fläkt Woods 12
  13. 13. ECONET® Benefits (investment)  ECONET reduces the investment costs  Reduces the size of the chiller  Reduced cold water flows, pipe work dimensions  Reduces the size of the boiler  Reduced hot water flows, pipe work dimensions  Can utilize cheap waste heat  Reduced energy costs  Better energy recovery  Possibility to use waste heat  Smaller foot-print  1 component instead of 3 components in the supply air unit  Shorter installation time  Pre-fabricated pump unit with pre-programmed control box. © Fläkt Woods 13
  14. 14. ECONET® Benefits (impact of heating and cooling network) Berlin: No recovery Ecoterm ECONET® 8,8 m³/s, 31 680 m³/h, winter -12°C -> 20 °C summer 32°C -> 16 °C AHU size EU-53 Cooling Chiller size 238 kW 238 kW 167/120 kW Cold water flow 9,4 l/s 9,4 l/s 2,6 l/s Heating Boiler size 338 kW 149 kW 99 kW….0 kW Hot water flow 4,0 l/s 1,8 l/s 0,6 l/s © Fläkt Woods 14
  15. 15. ECONET® Case heating Reduction of heating power by utilizing superior heat recovery (239 kW) The exhaust air +23°C 18°C (99 kW) 149 kW 27°C -12°C +20°C The supply air 75% of the heating power needed taken from heat recovery © Fläkt Woods 15
  16. 16. ECONET® Case heating, impact of boiler size Boiler size Reduction of the boiler: 100.00 % 90.00 % By 71%, by using ECONET 80.00 % instead of no heat recovery at all 70.00 % 60.00 % 100 % 50.00 % By 40 %, by using ECONET 40.00 % instead of traditional heat 30.00 % 44 % recovery 20.00 % 29 % 10.00 % By 100%, by using ECONET 0% 0.00 % No recovery Traditional energy recovery ECONET ECONET utilizing waste heat combined with ‘waste heat’ or/and IEC Reduction of the the boiler size Berlin: 8,8 m³/s, 31 680 m³/h, CAV, 8760 h/year, winter -12°C -> 20 °C, size EU-53, 100% => 338 kW (boiler) © Fläkt Woods 16
  17. 17. ECONET® Case heating, impact of pipe work Hot water flow Reduction of the hot 100.00 % water flow: 90.00 % 80.00 % By 85%, by using ECONET 70.00 % instead of no heat recovery at all 60.00 % 100 % 50.00 % 40.00 % By 76 %, by using ECONET 30.00 % 44 % instead of traditional heat 20.00 % recovery 10.00 % 15 % 0.00 % No recovery Traditional energy recovery ECONET Reduction of hot water flow inside the building Berlin: 8,8 m³/s, 31 680 m³/h, CAV, 8760 h/year, winter -12°C -> 20 °C, size EU-53, 100% => 4 l/s (60/40°C, hot water flow) © Fläkt Woods 17
  18. 18. ECONET® Benefits (LCC, investment/running costs)  ECONET reduces the investment costs  Reduces the size of the chiller  Reduced cold water flows, pipe work dimensions  Reduces the size of the boiler  Reduced hot water flows, pipe work dimensions  Can utilize cheap waste heat  Reduced energy costs  Better energy recovery  Possibility to use waste heat  Smaller foot-print  1 component instead of 3 components in the supply air unit  Shorter installation time  Pre-fabricated pump unit with pre-programmed control box. © Fläkt Woods 18
  19. 19. ECONET® Benefits (impact of running costs) EU-53 (8,8 m³/s, 31 680m³/h) No recovery Ecoterm ECONET® Running time: 24 hour/day, 365 d/y, CAV system Duration curve: Berlin Supply air temperature: 20°C…16°C Exhaust air temperature: 22°C…24°C Efficiency variants for the coils ECONET Ecoterm 5/supply air coil 2/supply air coil 3/exhaust air coil 3/exhaust air Heating energy 769 MWh 211 MWh 136 MWh Cooling energy 155 MWh 155 MWh 129 MWh © Fläkt Woods 19
  20. 20. ECONET® Cas e he ating , impact of e ne rg y cons umption Heating Reduction of the heating 100.00 % energy: 90.00 % 80.00 % 70.00 % By 72%, by using ECONET instead of no heat recovery at all 60.00 % 100 % 50.00 % 40.00 % By 36 %, by using ECONET 30.00 % instead of traditional heat 20.00 % 27 % recovery 10.00 % 18 % 0% 0.00 % Reduction of 100% of primary No recovery Traditional heat recovery ECONETFWG energy ECONET utilizing w aste heat recovery or/and IEC energy, by using ECONET Primary heating energy combined with ‘waste heat’ Berlin: 8,8 m³/s, 31 680 m³/h, CAV, 8760 h/year, size EU-53, 100% => 769 MWh/year © Fläkt Woods 20
  21. 21. ECONET® Cas e he ating , impact of e ne rg y cons umption Cooling Reduction of the cooling 100.00 % energy: 90.00 % 80.00 % 70.00 % By 17%, utilizing cooling 60.00 % recovery combined with IEC 50.00 % 100 % 100 % 100 % 83 % 40.00 % 30.00 % 20.00 % 10.00 % The warmer the climate is the 0.00 % more You save in cooling No recovery Traditional heat recovery ECONETFWG energy recovery ECONET utilizing waste heat or/and IEC energy consumption Primary cooling energy Berlin: 8,8 m³/s, 31 680 m³/h, CAV, 8760 h/year, size EU-53, 100% => 155 MWh/year © Fläkt Woods 21
  22. 22. ECONET® Benefits (Space requirements for AHU)  ECONET reduces the investment costs  Reduces the size of the chiller  Reduced cold water flows, pipe work dimensions  Reduces the size of the boiler  Reduced hot water flows, pipe work dimensions  Can utilize cheap waste heat  Reduced energy costs  Better energy recovery  Possibility to use waste heat  Smaller foot-print  1 component instead of 3 components in the supply air unit  Shorter installation time  Pre-fabricated pump unit with pre-programmed control box. © Fläkt Woods 22
  23. 23. ECONET® Case space in the equipment room Reduction of the AHU length: By 1,2 meter Reduction of the AHU foot-print: By 3,1 m² Reduction of the AHU weight: By 418 kg (3288/3706 kg) …+1204 mm © Fläkt Woods 23
  24. 24. ECONET® Applications  Hospital, Pharma (offices) No odour,bacteria, virus transfer Easy to use cooling recovery High heat recovery ratio, 60-75% Perfect for VAV system Utilization of waste heat (condensate heat from chillers) Smaller foot-print for AHU  Supermarkets, shopping centres Utilization of waste heat (condensate heat from chillers) Easy to use cooling recovery High heat recovery ratio, 60-75% Perfect for VAV system Smaller foot print for AHU  Industry Utilization of waste heat (process heat) High heat recovery ratio, 60-75% Can be used with corrosive and polluted exhaust air © Fläkt Woods 24
  25. 25. ECONET® Summary  Up to 85-90% of the costs for the customer during the life time of the system are related to the running costs. Energy 85% Investment 10% Maintenance 5%  Something to think about during 20 years! © Fläkt Woods 25

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