econet presentation 2007 eng
DESCRIPTION
Presentation of Econet - innovative heat exchanging solution by Flakt Woods.TRANSCRIPT
© Fläkt Woods 1
ECONET
© Fläkt Woods 2
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
High Efficient Energy recovery systems
© Fläkt Woods 3
ECONET® The new heat/cooling recovery system
The traditional wayThe ECONET way
Unique for ‘run around coils’ Flexible installation and performance
No leakage between the supply and return air
(no odour and bacteria transfer)
Can also be used for corrossive and polluted air
Unique for the ECONET way1 component, 4 functions
lower pressure drops,shorter AHU
Increased heat recovery efficiency 60…75% performance
Able to use cooling recovery
Allways prepared for cooling and cooling recovery
Possibility to utilize process/waste heat
Perfect for district cooling/heating
© Fläkt Woods 4
Hospital/pharma applications more than 200 (totally > 950) systems sold.
Janssen Pharmacia: Antwerpen - Belgium
Lindisbergs lasarett: Lindisberg - Sweden
Linköping: Linköping - Sweden
Jyväskylän keskussairaala: Jyväskylä - Finland
Central hospital: Karlstad - Sweden
Hospital Raahe: Raahe - Finland
University hospital: Stavanger - Norway
Turku hospital TYKS: Turku - Finland
Odense hospital: Odense - Denmark
Hospital St Olav: Trondheim - Norway
Raisio hospital: Raisio - Finland
Brönnöysund hospital: Brönnöy - Norway
Seinäjoki hospital, Seinäjoki - Finland
ECONET®
ECONET®
ECONET®
ECONET®
ECONET®
ECONET®
ECONET® ECONET®
ECONET®
ECONET®
ECONET® ECONET®
ECONET®
ECONET®
ECONET®
ECONET®
ECONET®
ECONET® References, hygienical application
© Fläkt Woods 5
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.
ECONET® Benefits (investment)
© Fläkt Woods 6
No recovery Ecoterm ECONET® Berlin:
8,8 m³/s, 31 680 m³/h, winter -12°C -> 20 °C summer 32°C -> 16 °C
AHU size EU-53
ECONET® Benefits (impact of heating and cooling network)
Cooling
Chiller size
Cold water flow
Heating
Boiler size
Hot water flow
238 kW
9,4 l/s
338 kW
4,0 l/s
238 kW
9,4 l/s
149 kW
1,8 l/s
167/120 kW
2,6 l/s
99 kW….0 kW
0,6 l/s
© Fläkt Woods 7
22ºC 11°C
32°C 16°C
18°C 24°C
28°C 19°C 24°C
The exhaust air
The supply air
(95 kW)
Reduction of cooling power by utilizing cooling recovery and IEC
(120 kW)
44% of the cooling power needed taken from cooling recovery
238 kW
ECONET® Case cooling
© Fläkt Woods 8
50% of the cooling power needed taken from cooling recovery
ECONET® Example, Westend First Frankfurt
© Fläkt Woods 9
26ºC 11°C
32°C 16°C
18°C 24°C
29°C 24°C
The exhaust air
The supply air
(50 kW)
Reduction of cooling power by utilizing cooling recovery
(167 kW)
23% of the cooling power needed taken from cooling recovery
ECONET® Case cooling
© Fläkt Woods 10
9/20°C, 2,6 l/s
or
9/24°C, 2,6 l/s
ECONET combined with a chiller
•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
Cooling recovery + IEC 120 kW, 9/15°C, 4,8 l/s
Or
Cooling recovery 167 kW, 9/15°C, 6,6 l/s
238 kW, 6/12°C, 9,4 l/s
ECONET® Case cooling, impact of chiller and pipework
© Fläkt Woods 11
Reduction of the chiller:
By 30%, utilizing cooling recovery
By 50 %, utilizing cooling recovery combined with IEC
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)
100 % 100 %
70 %50 %
0.00 %10.00 %20.00 %30.00 %40.00 %50.00 %60.00 %70.00 %80.00 %90.00 %
100.00 %
No recovery Traditional energy recovery ECONET ECONET utilizing waste heator/and IEC
Reduction of the chiller size
Chiller size
ECONET® Case cooling, impact of chiller
© Fläkt Woods 12
100 % 100 %
28 % 28 %
0.00 %
10.00 %
20.00 %
30.00 %
40.00 %
50.00 %
60.00 %
70.00 %
80.00 %
90.00 %
100.00 %
No recovery Traditional energyrecovery
ECONET ECONET utilizingwaste heat or/and IEC
Reduction of cold water flow inside the building
Cold water flow
Berlin:
8,8 m³/s, 31 680 m³/h, CAV, 8760 h/year, size EU-53, 100% => 9,4 l/s(cold water flow)
ECONET® Case cooling, impact of pipe work
Reduction of the cold water flow:
By approx. 70% by using ECONET
© Fläkt Woods 13
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.
ECONET® Benefits (investment)
© Fläkt Woods 14
No recovery Ecoterm ECONET® Berlin:
8,8 m³/s, 31 680 m³/h, winter -12°C -> 20 °C summer 32°C -> 16 °C
AHU size EU-53
ECONET® Benefits (impact of heating and cooling network)
Cooling
Chiller size
Cold water flow
Heating
Boiler size
Hot water flow
238 kW
9,4 l/s
338 kW
4,0 l/s
238 kW
9,4 l/s
149 kW
1,8 l/s
167/120 kW
2,6 l/s
99 kW….0 kW
0,6 l/s
© Fläkt Woods 15
-12°C +20°C
+23°C
27°C
18°C
The supply air
The exhaust air
Reduction of heating power by utilizing superior heat recovery
(239 kW)
(99 kW)
75% of the heating power needed taken from heat recovery
149 kW
ECONET® Case heating
© Fläkt Woods 16
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)
100 %
44 %29 %
0 %0.00 %10.00 %20.00 %30.00 %40.00 %50.00 %60.00 %70.00 %80.00 %90.00 %
100.00 %
No recovery Traditional energy recovery ECONET ECONET utilizing waste heator/and IEC
Reduction of the the boiler size
Boiler size
ECONET® Case heating, impact of boiler size
Reduction of the boiler:
By 71%, by using ECONET instead of no heat recovery at all
By 40 %, by using ECONET instead of traditional heat recovery
By 100%, by using ECONET combined with ‘waste heat’
© Fläkt Woods 17
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)
100 %
44 %
15 %
0.00 %
10.00 %
20.00 %
30.00 %
40.00 %
50.00 %
60.00 %
70.00 %
80.00 %
90.00 %
100.00 %
No recovery Traditional energy recovery ECONET
Reduction of hot water flow inside the building
Hot water flow
ECONET® Case heating, impact of pipe work
Reduction of the hot water flow:
By 85%, by using ECONET instead of no heat recovery at all
By 76 %, by using ECONET instead of traditional heat recovery
© Fläkt Woods 18
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.
ECONET® Benefits (LCC, investment/running costs)
© Fläkt Woods 19
EU-53 (8,8 m³/s, 31 680m³/h) 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
ECONET® Benefits (impact of running costs)
No recovery Ecoterm ECONET®
Heating energy
Cooling energy
769 MWh 211 MWh 136 MWh
155 MWh 155 MWh 129 MWh
© Fläkt Woods 20
Berlin:
8,8 m³/s, 31 680 m³/h, CAV, 8760 h/year, size EU-53, 100% => 769 MWh/year
100 %
27 %18 %
0 %0.00 %
10.00 %
20.00 %
30.00 %
40.00 %
50.00 %
60.00 %
70.00 %
80.00 %
90.00 %
100.00 %
No recovery Traditional heat recovery ECONETFWG energyrecovery
ECONET utilizing waste heator/and IEC
Primary heating energy
Heating
ECONET® Case heating, impact of energy consumption
Reduction of the heating energy:
By 72%, by using ECONET instead of no heat recovery at all
By 36 %, by using ECONET instead of traditional heat recovery
Reduction of 100% of primary energy, by using ECONET combined with ‘waste heat’
© Fläkt Woods 21
Berlin:
8,8 m³/s, 31 680 m³/h, CAV, 8760 h/year, size EU-53, 100% => 155 MWh/year
100 % 100 % 100 %
83 %
0.00 %
10.00 %
20.00 %
30.00 %
40.00 %
50.00 %
60.00 %
70.00 %
80.00 %
90.00 %
100.00 %
No recovery Traditional heatrecovery
ECONETFWG energyrecovery
ECONET utilizing wasteheat or/and IEC
Primary cooling energy
Cooling
ECONET® Case heating, impact of energy consumption
Reduction of the cooling energy:
By 17%, utilizing cooling recovery combined with IEC
The warmer the climate is the more You save in cooling energy consumption
© Fläkt Woods 22
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.
ECONET® Benefits (Space requirements for AHU)
© Fläkt Woods 23
…+1204 mm
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)
© Fläkt Woods 24
Hospital, Pharma (offices)No odour,bacteria, virus transferEasy to use cooling recoveryHigh heat recovery ratio, 60-75%Perfect for VAV systemUtilization of waste heat (condensate heat from chillers)Smaller foot-print for AHU
Supermarkets, shopping centresUtilization of waste heat (condensate heat from chillers)Easy to use cooling recoveryHigh heat recovery ratio, 60-75%Perfect for VAV systemSmaller 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
ECONET® Applications
© Fläkt Woods 25
Up to 85-90% of the costs for the customer during the life time of the system are related to the running costs.
Something to think about during 20 years!
Energy 85%
Investment 10%
Maintenance 5%
ECONET® Summary