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Ipt saving energy

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This document discusses how using living wall air filtration systems can save HVAC energy and improve indoor air quality. Some key points: - Living wall filtration can provide 20% energy savings, 6-26% increased work performance, 3-5% reduced ventilation costs, and a 12-18 month payback period. - A case study of two living wall filters over two floors found very low levels of VOCs and microbes after two years, higher fresh air levels, and a 13% productivity improvement. - Living wall filtration removes particulates, VOCs, viruses, bacteria, and fungi with a small footprint and low energy use, working 24/7 to complement existing HVAC filtration. Proper installation

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Saving HVAC energy through better air filtration for healthy indoor environments Ronald Wood PhD BSc. Innovative Plant Technology
Why not breathe clean, pollutant free indoor air.  20% saving in energy use,  6 – 26% increase in work performance  3 - 5% ventilation cost reduction  12 – 18 months payback period
Ipt saving energy
CASE STUDY • • Umow Lai - Consulting Engineers, Melbourne, 5 Living Wall air filters over 2 floors • Independent testing of duct outlets after two years of continuous operation. • low levels of VOCs (at or below detection limits) • very low microbial count • higher levels of fresh air • overall 13% improvement in productivity
Living Wall air filtration  Proven low-tech natural remediation  Removes particulates, VOCs, virus, bacteria, fungi  Small footprint  Low energy use  Works 24/7
WHY THIS? • lower ventilation rates in existing buildings • no need to over-size HVAC in newly designed buildings. • Free-standing or incorporated into air handling • Complements existing filtration • Complies with AS 1668-1.2 2012 Part 2 Appendix D cleaning recirculated air
Schematic make up of an indoor air biofilter Image courtesy of Nedlaw Living Walls Inc
COST PERSPECTIVE • Breakdown of a typical office building operating cost structure:  Salaries are over 80% of business costs  Rent is around 15%  Remaining costs ~ 5% energy, water and maintenance
PAYBACK 1 • Example • Two biofilter walls each 2.4m wide x 1.7m high ~ 8 m2 are installed in an open plan workspace of NLA 450 m2 • cost - $20,000 ($2500 per m2) • (workplace density of 10m2/person (AS 1668.2) provides clean filtered air for up to 45 occupants). • Simple Payback Period - straight line approximation • Payback Period (years) = $ Capital investment $ Annual Savings • Occupancy rate of 20 persons, and a 1% improvement in performance, average salary cost $72,000 (ABS, May 2012), Saving $720 per person = $14,400 • Payback Period 16 months
PAYBACK 2 • Similarly at a full occupancy rate of 45 persons the payback period would be around 6 months. • There are additional energy savings from reduced ventilation rates, lower filter pressure drop, and less maintenance and replacement costs of HVAC fans, filters and pumps and by avoiding design over-sizing. • Biofilter maintenance costs equate to $6.70/m2floor space/p.a. or approximately $150 per person per annum at an occupancy rate of 20 persons, or $67 for 45 persons. • Clearly minimal costs compared to potential savings.
QuickTimeâ„¢ and a decompressor are needed to see this picture. Filtered air distribution Image courtesy of Nedlaw Living Walls Inc.
Next Steps • To discuss how iplant Living Wall Biofilter systems can enhance your buildings and bring value to your tenants and clients, contact Dr. Ronald Wood • Innovative Plant Technology • e-mail iplant@plantscleanair .com

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Ipt saving energy

  • 1. Saving HVAC energy through better air filtration for healthy indoor environments Ronald Wood PhD BSc. Innovative Plant Technology
  • 2. Why not breathe clean, pollutant free indoor air.  20% saving in energy use,  6 – 26% increase in work performance  3 - 5% ventilation cost reduction  12 – 18 months payback period
  • 4. CASE STUDY • • Umow Lai - Consulting Engineers, Melbourne, 5 Living Wall air filters over 2 floors • Independent testing of duct outlets after two years of continuous operation. • low levels of VOCs (at or below detection limits) • very low microbial count • higher levels of fresh air • overall 13% improvement in productivity
  • 5. Living Wall air filtration  Proven low-tech natural remediation  Removes particulates, VOCs, virus, bacteria, fungi  Small footprint  Low energy use  Works 24/7
  • 6. WHY THIS? • lower ventilation rates in existing buildings • no need to over-size HVAC in newly designed buildings. • Free-standing or incorporated into air handling • Complements existing filtration • Complies with AS 1668-1.2 2012 Part 2 Appendix D cleaning recirculated air
  • 7. Schematic make up of an indoor air biofilter Image courtesy of Nedlaw Living Walls Inc
  • 8. COST PERSPECTIVE • Breakdown of a typical office building operating cost structure:  Salaries are over 80% of business costs  Rent is around 15%  Remaining costs ~ 5% energy, water and maintenance
  • 9. PAYBACK 1 • Example • Two biofilter walls each 2.4m wide x 1.7m high ~ 8 m2 are installed in an open plan workspace of NLA 450 m2 • cost - $20,000 ($2500 per m2) • (workplace density of 10m2/person (AS 1668.2) provides clean filtered air for up to 45 occupants). • Simple Payback Period - straight line approximation • Payback Period (years) = $ Capital investment $ Annual Savings • Occupancy rate of 20 persons, and a 1% improvement in performance, average salary cost $72,000 (ABS, May 2012), Saving $720 per person = $14,400 • Payback Period 16 months
  • 10. PAYBACK 2 • Similarly at a full occupancy rate of 45 persons the payback period would be around 6 months. • There are additional energy savings from reduced ventilation rates, lower filter pressure drop, and less maintenance and replacement costs of HVAC fans, filters and pumps and by avoiding design over-sizing. • Biofilter maintenance costs equate to $6.70/m2floor space/p.a. or approximately $150 per person per annum at an occupancy rate of 20 persons, or $67 for 45 persons. • Clearly minimal costs compared to potential savings.
  • 11. QuickTimeâ„¢ and a decompressor are needed to see this picture. Filtered air distribution Image courtesy of Nedlaw Living Walls Inc.
  • 12. Next Steps • To discuss how iplant Living Wall Biofilter systems can enhance your buildings and bring value to your tenants and clients, contact Dr. Ronald Wood • Innovative Plant Technology • e-mail iplant@plantscleanair .com