Air Filters and Energy Conservation

1

Low Energy Air Filters

2

© CAM

FIL

FARR

“How ISO contributes to a sustainable world – 2008”

Recent studies performed in Denmark by G. Bekö(1) The study showed that the overall economic and social benefits of using particle air filtration are several times larger than the associated running costs.

1. Gabriel Bekö, Geo Clausen, Charles J. Weschler, “Is use of particle air filtration justified? Cost and benefits of filtration with regard to health effects, building cleaning and occupant productivity”, published in Building Environment 43 (2008) 1647-1657.

3

© CAM

FIL

FARR

23-

04-1

0

Filters andenergy conservation

2009 global sales £400 million22 Production Plants, 4 R&D Centres3300 employees

Production Facility

●

Sales Office ●Agent ●

Head Office ●

4

© CAM

FIL

FARR

23-

04-1

0

The energy cost of ventilation (simplified)

Air Handling Unit

Pre-filter Secondary-filter

Air intake

Inlet duct Distribution duct

Room distribution grille

Damper

Cooling coil Heating coil

FAN

MOTOR

Air supply

Molecular-filter

Noise attenuation

OUTSIDE INSIDE

5

© CAM

FIL

FARR

23-

04-1

0

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 Without Capital ExpenditureExpenditure

30% of total system pressure loss

6

© CAM

FIL

FARR

Choosing the right filter saves energy

•Actual design of the filter that has the main impact•Full utilisation of the media resulting in extended life and low energy cost. •Must have lowest average pressure drop

•Minimum air filter efficiency to European standard EN779:2002

7

© CAM

FIL

FARR

Budget HolderMaterialsLabourFreightEnergy

Filters

10 20 30 40

Major Budgets

Decision Structure

8

© CAM

FIL

FARR

23-

04-1

0

Summary of savings from a typical to Low Energy Air Filters

5 YEARS – 10 m3/s

Element Typical Low Energy Air Filters Saving Per Year

Filters 3240 3140 100 20Labour 6000 2800 3200 640Energy 25450 17960 7490 1500Waste 1500 700 800 160TOTAL 36190 24600 11590 2320

M L E

16.8% 58.2%F5 F7

9

© CAM

FIL

FARR

23-

04-1

0

Summary of savings from a typical to Low Energy Air Filters

1 YEAR – 10 m3/s

Element Typical Low Energy Air Filters Saving

Filters 648 628 20Labour 1200 560 640Energy 5090 3590 1500Waste 300 140 160TOTAL 7238 4918 2320

M L E

16.8% 58.2%F5 F7

10

© CAM

FIL

FARR

23-

04-1

0

Typical HVAC Return on Investment (ROI)

Annual Savings – for a 10 m3/s systemElement % Kw/hr £ Revenue or capital PaybackUpgrade filters 22% 6000 600 Revenue < 3 monthsClean 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 ROI payback period

Data source – EECO2 Energy Efficiency Consultants (Low Carbon Consultants)

11

2,000 AHU

Scaled to 10m3/s each (10 filters)

2,000 x 6000 Kw/hr= 12,000,000 Kw/hr

Savings 2,000 x £600

= £1.2 million

Impact of filter energy saving (2,000 ahu’s)

© CAM

FIL

FARR

23-

04-1

0

Low Energy Air Filters

12

• Labour to replace filters would reduce by half

• Waste disposal would reduce by half

• Supply chain environmental impact would reduce by half

• CO2 reduced substantially

• A sustainable option

• Case studies

Impact on sustainability by using Low Energy Air Filters

© CAM

FIL

FARR

23-

04-1

0

Allied Services: -• Supply, fit and dispose

• Total Filter Management

• Validation of Clean Rooms

• Validation of Hospital Operating Theatres

• Duct Cleaning

• FM Pre contract “Rough Cut” AHU Cost Optimisation

• FM Due diligence mobilisation of identified savings audit

13

© CAM

FIL

FARR

14

© CAM

FIL

FARR

Energy Opportunities: -• Optimum Air Filtration Selection

• Opportunities Assessment Surveys

• Air Handling Plant Assessment Surveys

• Legislation Compliance and Best Practice Advice

• Air Hygiene /IAQ

• Condition Monitoring of Air Handling Plant

• Filtration Fractional Efficiency Testing

• Life Cycle Cost analysis (with guarantees)

15

© CAM

FIL

FARR

15

© CAM

FIL

FARR

23-

04-1

0

Estates management & sustainability • Major focus on costs and saving

the environment

• Our air filter solutions contribute to– Healthy indoor air quality– Reduced ” carbon footprint”– Cut energy consumption

• Camfilcairing launched in 2008 1st initiative in our industry to develop and maintain sustainable business practices

Thank You for your attention

16

www.lowenergyairfilter.co.uk