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Be a company Energy Hero


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Be a company Energy Hero

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Be a company Energy Hero

  1. 1. Clean air solutions THE CAMFIL GROUP Peter DymentPeter Dyment Be a Company Energy Hero
  2. 2. Camfil worldwide 2014 Group sales of £450m 3,380 employees 24 production plants Sales companies in 25 countries Agents and representatives in more than 50 countries Clean air should be aClean air should be a human righthuman right
  3. 3. Low Energy Air Filters Clean air inside city buildings with minimum energy And running costs Risk to Health from Traffic air pollution N02 and PM2.5
  4. 4. 4 Camfil City M - Air purifier – Clean Indoor Air at point of need Low Energy Air Purifier Air Flow Rate 430 M3/hr 6 Fan speeds
  5. 5. 7 The only Eurovent A+ rated F7 filters currently available 2015
  6. 6. 8 Eurovent HVAC Air Filter Energy Rating 2015 Uses the energy equation with 50% fan efficiency and 6000 hours running time
  7. 7. 9 All Eurovent Certification data is publicly available online..
  8. 8. 1010 ©CAMFIL15-07-24 Low Energy Air Filters for Indoor Air Quality The primary purpose of Air Filters in building HVAC systems is to filter and clean air for people to breathe without risk to health. The secondary purpose of Air Filters in building HVAC systems is to filter air to keep clean and protect the air plant duct system and the internal fabric of the building. Why we need Air Filters?
  9. 9. 11 Camfil Low Energy Air Filters can save Money, Energy and Carbon 11 Typically 50% of energy use in Commercial Office buildings can be used in HVAC systems ©CAMFIL15-07-24
  10. 10. See the Energy Saving Opportunity £14430 per year There are about 50000 buildings with large AC systems CIBSE 12 ©CAMFIL15-07-24 Low Energy Air Filters
  11. 11. 13 ©CAMFIL15-07-24 • We spend 80% of our time inside • 50 % of all particles inside come from outdoor air. 50 % are generated from indoor sources • The particles penetrate the building through ventilation or leaks. • Air pollution adversely affects the growth of lung function during the period of rapid lung development that occurs between the ages of 10 and 18. (The New England Journal of Medicine) Stay healthy – stop breathing?
  12. 12. Air Quality problems in the UK UK Government report indicates PM2.5 pollution is 3X more damaging to public health than passive smoking. 5X more damaging than loss of life due to road accidents 14 ©CAMFIL15-07-24
  13. 13. 15 ©CAMFIL15-07-24 Graph indicating probability of progress of PM ultra-fine particulate pollution into the human respiratory system
  14. 14. 16 ©CAMFIL15-07-24
  15. 15. 17 ©CAMFIL15-07-24 DALY Disability Adjusted Life Year
  16. 16. 18 ©CAMFIL15-07-24
  17. 17. Air Filter Classification The filter test standard that classifies air filters G2 – F9 is EN779:2012 EN13779:2007 advises F7 as a minimum and F9 as the advised for the required particulate efficiency For HEPA and ULPA EN1822:2009 Classes E10 - U17
  18. 18. New EN779:2012 classification for coarse to fine air filters 20 ©CAMFIL15-07-24 Table 1— Classification of air filters 1) Group Class Final test pressure drop Average arrestance (Am) of synthetic dust Average efficiency (Em) of 0,4 µm particles Minimum Efficiency 2) of 0,4 µm particles Pa % % % Coarse G1 250 50 ≤ Am < 65 - - G2 250 65 ≤ Am < 80 - - G3 250 80 ≤ Am < 90 - - G4 250 90 ≤ Am - - Medium M5 450 - 40 ≤ Em < 60 - M6 450 - 60 ≤ Em < 80 - Fine F7 450 - 80 ≤ Em < 90 35 F8 450 - 90 ≤ Em < 95 55 F9 450 - 95 ≤ Em 70 NOTE 1) The characteristics of atmospheric dust vary widely in comparison with those of the synthetic loading dust used in the tests. Because of this the test results do not provide a basis for predicting either operational performance or life. Loss of media charge or shedding of particles or fibres can also adversely affect efficiency. 2) Minimum efficiency is the lowest efficiency among the initial efficiency, discharged efficiency and the lowest efficiency throughout the loading procedure of the test.
  19. 19. EN779:2012 has set the minimum particulate efficiency (ME) of 35% on an F7 class filter.This will exclude inferior synthetic media HVAC filters. 21 ©CAMFIL15-07-24 Min Effy. 35% SINTEF Real life test :1995
  20. 20. Comfort ventilation 22 ©CAMFIL15-07-24 Typical Particle => .4 micron Synthetic Competitor F7 HiFlo F7
  21. 21. 23 ©CAMFILFARR15-07-24 Particulate Efficiency %Particulate Efficiency % Particle Size MicronsParticle Size Microns M5, M6, F7, F9 ©CAMFIL15-07-24
  22. 22. 24 ©CAMFILFARR15-07-24 Particulate Efficiency % Particle Size MicronsParticle Size Microns ©CAMFIL15-07-24
  23. 23. 25 ©CAMFILFARR15-07-24 Particle Size MicronsParticle Size Microns Particulate Efficiency % ©CAMFIL15-07-24
  24. 24. A Typical Air Handling Unit and its component sections 1 - Supply air duct 2 - Fan section 3 - Flexible connection 4 – Heating/Cooling coils 5 - Filter section 6 - Air intake duct • Air filters separate any airborne particles from air flow. • Their purpose is to : • provide clean air and Indoor Air Quality to building occupants • keep the HVAC system clean and energy efficient 26 ©CAMFIL15-07-24
  25. 25. Air Handling Unit energy flow Pre-filter Secondary-filter Intake Air Frost coil Supply Air Damper Heating coil Cooling coil FAN MOTOR Gas-filter (Carbon) Attenuator OUTSIDE INSIDE Electrical Energy input via motor
  26. 26. 28 How we optimise our Low Energy Air Filter selection A Hiflo2 F7 Bag filter with 9.2 M2 of micro-fibre media has the optimum low pressure drop and consistent high particulate efficiency with a longer working life BS:EN13779:2007 advises F7 minimum efficiency ©CAMFIL15-07-24
  27. 27. 2929 ©CAMFIL15-07-24 Energy consumed by air filters The cost of ventilation • The energy requirement for ventilation is expensive. • Filters account for approx. 30% of the total energy cost of the system. (C.I.B.S.E. data) • Filters are the most inexpensive part of the system to improve. • Without Capital Expenditure Clean air with economic benefits 30% of total system pressure loss 40% 20% 4% Pascal
  28. 28. 3030 ©CAMFIL15-07-24 Life cycle costing & air system factors Energy is part of the Eurovent LCC model The life cycle cost for the filter is the cost of the: • Filters • Labour • Energy consumption • Cleaning of ventilation system • Disposal of used filter = LCC Clean air with economic benefits
  29. 29. Clean air solutions [ ]kWh/year 1000η tdPq E × ×× = q = Air flow (m3 /s) dP = Pressure drop (Pa) t = Operating time (hours/year) η = Fan efficiency (0,1 - 0,7) Energy consumption from air filtration
  30. 30. 32 ©CAMFIL15-07-24 Energy Optimisation with Low Energy Air Filters For example using F7 filter grade as advised by BS:EN13779:2007 Options: 6 pocket 380mm long bag has about 200pa pressure drop initially 12 pocket 632mm long bag has about 85pa pressure drop initially Over a period of one year allowing for the pressure drop increases as the filters work the estimated save in energy consumption as below. **Energy £300 the difference in filter price is about £30** (Ratio 10:1 at 10p per KW/hr.) Clean air with economic benefits Now 60pa with HiFlo2
  31. 31. 33 Energy consumed by Air Filters Choosing the right bag filter saves Energy • Low Energy Air Filters use an optimised design in order to minimise energy consumption with Tapered stitch on pockets. Poorly manufactured pockets lose performance, use more energy Clean air with economic benefits ©CAMFIL15-07-24
  32. 32. 34 Office block 8000M2 floor area with 30 full size filter apertures. (3 AHU’s) 34 ©CAMFIL15-07-24 This office block can show an energy saving of £ 14430 per year with the equivalent of 3 AHU’s as shown in the next slide. Energy consumed by air filters Example of urban offices block and savings
  33. 33. 35 Energy consumed by air filters Energy saving on one AHU volume flow 10m3/s over one year F7 Bag + G4 Panel F7 Hi-Flo Bag 2.9 M2 Media 9.2 M2 Media This represents a money saving of £ 4810 per year on this AHU or saving of over 70% on electrical energy. 35 ©CAMFILFARR15-07-24 Replaced by
  34. 34. See the Energy Saving Opportunity £14430 per year There are about 50000 buildings with large AC systems CIBSE 36 ©CAMFIL15-07-24 Low Energy Air Filters
  35. 35. Recommended Low Energy Air Filter types For the best LCC performance filter in class F7. Recommended models are 1. HiFlo2 F7 2. Opakfil ES For compact systems 37 ©CAMFIL15-07-24 1. 2.
  36. 36. 3838 ©CAMFIL15-07-24 HiFlo2 F7 + HiFlo2 F7 to give F9 How we optimise our air filter selection Camfil Low Energy Air Filters optimise Energy performance and Air quality Note: It is required that these F7 filters are mounted in front withdrawal frames to ensure there is no significant air bypass + HiFlo2 F7 is the optimum single stage F7 solution
  37. 37. 39 How we optimise our air filter selection Impact assessment • 200 Buildings • Serviced by 5 air handing units • Each having 10 standard 2 stage apertures • Number of 2 Stage apertures • 200 x 5 x 10 = 10,000 apertures • Will make annual Energy savings (considered on above criteria) • WILL SAVE ENERGY VALUE OVER 2.3 MILLION POUNDS • EACH YEAR EVERY YEAR ©CAMFIL15-07-24
  38. 38. 40 ©CAMFIL15-07-24 Filter optimisation gives shortest payback time Annual Savings – for a 10 m3 /s system Element % Kwh £ Revenue or capital Payback Upgrade filters 22% 6000 600 Revenue < 3 months Clean coils 10% 2500 250 Revenue < 6 months Upgrade fans 35% 60000 6000 Capital > 24 months Upgrade chillers 40% 136000 13600 Capital > 36 months Table is prioritised by payback period Data source – EECO2 Energy Efficiency Consultants (Low Carbon Consultants)
  39. 39. HVAC Filter Specification guidance Design for an efficient future HVAC Secondary filters to be selected to EN13779:2007 guidelines F7 to F9 class Air Filters to have been tested in accordance with BS EN779:2012 Eurovent Life Cycle Cost for Air Filters to be used to optimise air filter selection The Air Filter manufacturer to be independently accredited by Eurovent Air Filters are to be manufactured under approved quality system BS EN 9001:2000 BS EN13053 advises minimum F7 for single stage AHU systems Design details BS EN1886:2007 test limits for air bypass in Air Handling Units mean that FWF front withdrawal filter mounting frames will be required. Air Handling Units are normally fitted with both Primary and Secondary Air Filters sections minimum length 700mm.long suitable for full length Bag filters. In general for HVAC applications Microfibre glass Hi-Flo media is recommended as it has a consistent particulate efficiency throughout its working life. 41 ©CAMFIL15-07-24
  40. 40. 42 Low Energy Air Filter Service Packages 42 ©CAMFIL15-07-24 • Low Energy Air Filter AHU filter mounting upgrades • Complete Low Energy Air Filter installation and maintenance contracts • AHU filter monitoring with demonstration of benefits • Additional Duct cleaning and coil cleaning AHU system packages.
  41. 41. Camfil 1st Manufacturer in UK to achieve ISO 50001 European union target By 2020 -20% energy consumption, -20% fossil fuels, +20% renewable energies Camfil Achievements so far : Tangible reductions in Energy consumption Gas 35%, Electricity 22%, Diesel fuel 19% Environmental targets Water 12%, & Waste 17% reductions 43 ©CAMFIL15-07-24
  42. 42. 4444 • Labour to replace filters would reduce by half or greater • Waste disposal would reduce by half or greater • Supply chain environmental impact would reduce as well • CO2 reduced substantially • A sustainable option • Case studies for sectors • Consistent performance • • Short Payback time Significant savings with Low Energy Air Filters ©CAMFIL15-07-24
  43. 43. 45 The only Eurovent A+ rated F7 filters currently available 2015
  44. 44. 46 Camfil City M - Air purifier – Clean Indoor Air at point of need Low Energy Air Purifier Air Flow Rate 430 M3/hr 6 Fan speeds