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Semelhante a Econet Presentation 2007 Eng (20)
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Econet Presentation 2007 Eng
- 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. 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
Noleakage 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. 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. 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. 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. 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. ECONET® Example, Westend First Frankfurt
50% of the cooling power needed taken from cooling recovery
© Fläkt Woods 8
- 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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