EQ ENERGY SAVING PRODUCTS

Transcription

1 FW ENERGY DAY EQ ENERGY SAVING PRODUCTS 19/10/2016 DOCUMENT

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4 X Energy efficient Ecodesign compliant LCC in focus Integrated functions Quick and reliable installation Flexible Hygiene Robust casing

5 Fläkt Woods Premium Energy Recovery Systems Rotary (RHE) Regoterm Incl. PremiumNEW Plate (PHE) Recuterm (Crossflow) Recuterm (Counterflow) Run Around Coil (RAC) Econet Premium Ecoterm

6 Regoterm - rotary heat exchangers Pressure drop REGOTERM 270 Premium Extra-deep thermal wheel 270 mm depth is the optimal ratio between heat recovery and pressure drop Enables larger airflows for smaller units Reduced AHU foot print for the same energy performance Rotor depth (mm)

7 SEMCO wheel for optimal heating and cooling Summer Winter Improved indoor airinquality Smaller investment chiller and cooling

8 RECUTERM PHE RANGE Recuterm crossflow ~73% heat transfer efficiency Complies with EU Ecodesign Regulation Wide flow range 0,3-7 m3/s Recuterm counterflow ~85% heat transfer efficiency Reduced heating load Flow range 0,3-3 m3/s Crossflow Counterflow

9 Recuterm counterfow Temperature efficiency small Hexagon Maximise heat transfer area Different sizes Heat Exchanger blocks Highest possible temperature efficiency Rectangular distribution blocks Large Hexagon

10 DEFROST FUNCTION VS FROST PROTECTION?

11 Recuterm AFP - Advanced Frost Protection Demand based control - Dew point control Sectionalised control function with 4 sections energy efficient control Maximised heat recovery for every unique condition Highest possible energy recovery

12 Recuterm - Advanced Frost Protection Active dew point control based on measurements all mounted in PHE section Extract air Temperature measurements Humidity measurements Exhaust air Temperature measurement per section (4 sensors) Outdoor air Temperature sensor

13 Avancerat påfrysningsskydd med daggpunktsreglering Fall 1: torr frånluft Litet avfrostningsbehov Fall 2: fuktig frånluft Större avfrostningsbehov +22 C 10% +22 C 40% -18 C -18 C -25 C 90% -25 C 90% -5 C 0 C

14 Energy calculation: Multi-flat building. Location: Stockholm EXAMPLE ANNUAL ENERGY CALCULATION Specification according to Svensk Ventilation, calculation of annual energy recovery efficiency 1. Counter flow, 85% efficiency, 1 m³/s h/a 3. Supply air, 20 C 4. Extract air, 22 C, additional water content +2 g/kg 5. Climate: Stockholm Recuterm Counterflow 1. Efficiency: 2. Pressure drop: 85 % 200 Pa

15 Recuterm - System comparison Standard frost protection Control based on temperature 2 sections + by-pass damper Recuterm Advanced Frost Protection Control based on temperature and humidity 4 sections + by-pass

16 Recuterm - Advanced Frost Protection Heat transfer efficiency Standard - 85% Heat transfer efficiency Fläkt Woods 85% +22 C 31% +22 C 31% +18,7 C +18,7 C 0 C 82% 0 C 82% +3,3 C +3,3 C No regulation No regulation Max recovery 85% Max recovery 85% Additional heating 0,3 C Additional heating 0,3 C

17 Recuterm - Advanced Frost Protection Heat transfer efficiency Standard < 60% Heat transfer efficiency Fläkt Woods - 85% +22 C 28% +22 C 28% +18,3 C +9,5 C -3 C 85% -3 C 85% +8 C +0,8 C 1 section closed By-pass damper closed Reduced recovery < 60% No regulation Additional heating 9,5 C Max recovery 85% Increased pressure drop 350Pa Additional heating 0,7 C

18 Recuterm - Advanced Frost Protection Heat Heat transfer transfer efficiency efficiency Standard 50% Standard < 60% Heat transfer efficiency Fläkt Woods < 75% +22 C 28% +22 C 28% +15,4 C +9 C -4 C 85% -4 C 85% +2,6 C +8 C 1 section closed, ½ reduced recovery 1 section closed, ¼ reduced recovery By-pass damper closed By-pass damper closed Reduced recovery < 60% Additional heating 10 C Increased pressure drop 350Pa Reduced recovery < 75% Additional heating 3,6 C Increased pressure drop 100Pa

19 Recuterm - Advanced Frost Protection Heat transfer efficiency Standard < 55% Heat transfer efficiency Fläkt Woods < 72% +22 C 25% +7 C -8 C 85% +6 C 1 section closed, ½ reduced recovery 1 section closed, ¼ reduced recovery By-pass damper starts opening By-pass damper starts opening Reduced recovery < 55% Reduced recovery < 72% Additional heating 12 C Additional heating 5,3 C Increased pressure drop 250Pa Increased pressure drop 75 Pa

20 Recuterm - Advanced Frost Protection 20

21 Integrated heating and cooling - ReCooler HP

22 ReCooler works? (Example in cooling mode) 32,6 C 27 C 26,4 C 24,6 C 24 C 19 C Less consumption SEMCO rotor reduces load Less complexity no extra fan,pumps & piping Packaged no condenser on roof top More efficient Lower temperature on condenser 20 C

23 ReCooler HP works? C 22 C C -10 C -20 C 14.3 C 19.3 C More efficient higher temperature to the coil Reliable and efficient defrost system 20 C

24 X ReCOOLER HP Total eq with Recooler HP enable extreme energy efficiency values Heat recovery Cooling recovery Heat pump Chiller EER 8 Heating Recovery * Total COP 60 ** Cooling Recovery * at 27 C outdoor temperature / EER=3,85 **at 0 C outdoor temperature / COP=6,62

25 Comparison energy consumption ReCooler HP Traditional 25

26 eq with ReCooler HP investment cost

27 eq with ReCooler HP investment cost 27

28 Investment cost comparison 28

29 100% SEPARATED AIR FLOWS 80% TEMPERATURE EFFICIENCY

30 Econet 30

31 Använd energi med låg kostnad eller lågt värde med Econet Premium 15 C 0 C/ -6 C 22 C 20 C -20 C 25 C Utilize low value heating and cooling Optimized heating and cooling systems Decreased energy consumption Advanced frost protection

32 Mixed flow fan for best performance inside AHU Optimized flow pattern increases energy efficiency Excellent sound performance low noise

33 Conventional Pattern 33

34 Mix flow Pattern 34

35 PM/EC motors PM/EC MOTORS High energy efficiency motors with IE4 rating High efficiency also at part load Compact physical dimensions

36 Induction motors INDUCTION MOTORS Integral motor or separate VSD that can be connected to motor and mounted on AHU panel Outdoor units can be configured with VSD inside AHU casing

37 Best components give best possible energy performance LCC - kwh Full size rotor Lager duct mounted components Regoterm 270 Premium PM motors Centriflow 3D Energy cost 17% eq Prime vs. eq Kompakt 37