Clean air solutions

THE CAMFIL GROUP

Peter Dyment

11th February 2015

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2

Camfil worldwide

2013 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 a human right

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Building Energy Efficiency

with Indoor Air Quality

Typically 50% of Energy

use in Large Buildings is in

the HVAC systemsCity centre air quality is typically

above WHO annual warning

levels for PM2.5 and NO2.

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Web Seminar

LONDON

US Six Cities Survey indicates PM2.5 exposure is

raising mortality rates across the UK London Region

The WHO REVIHAAP Report 2013

advises that the previous 2005

guidelines for PM2.5

10m/m3, annual average and

25 mg/m3, 24h average

are set too high and must be

reduced PM2.5 is a WHO Group1 carcinogen

Relationship between PM2.5 and mortality

10% 15% 20% 30%

INCREASE IN THE MORTALITY RATE

WHO says

There is no

safe level of

exposure to

PM2.5

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An airtight building envelope and effective air filtration

can prevent ingress of air pollution for clean IAQ

Particles counted are mainly toxic fine combustion particulates from traffic

Benefit

Particle Reduction of 78% between

Outside and Inside Air

Particle Reduction to

Supply Air also by

Effective Air Filtration

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The opportunity for improvement is great

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Over 13%

Improvement

Low Energy

Air Filter

2015

New 2015 Eurovent Energy Rating for Air Filters

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2015Over 15%

Improvement

Low Energy Air Filter

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Air Handling Unit energy flow

Pre-filterSecondary-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

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This equation calculates the kilowatt hours consumed by an element of a ventilation system based upon average pressure loss

kWh/year1000η

tdPqE

q = Air flow (m3/s)

dP = Pressure drop (Pa)

t = Operating time (hours/year)

h = Fan efficiency (20% - 65% ?)

The Energy Calculation

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These steady state reductions can be improved by use of demand led controls and time clocking

Maximum AHU system energy conservation comes from a dual strategy of

optimising static components then use of an inverter speed control on fan

motor

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Energy Reduction confirmed optimizing with Low Energy Air Filters

21% Reduction in fan

motor energy

North AHU with

Low Energy Air Filters

(micro-fibre glass)

South AHU Original

Synthetic medium Air

Filters

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An Air Handling unit demonstrator shows that there is Huge potential

ECO savings with air filter optimisation (LEAF) and Fan speed control

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Air Handling unit demonstrator Real Life results show

‘single figure’ deviation only for fan motor speed control

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17Camfil City M - Air purifier – Clean Indoor Air at point of need

Low Energy Air Purifier

Air Flow Rate

430 M3/hr

6 Fan speeds

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Indo

or A

ir Q

ualit

y in

Bui

ldin

gs18

•Particle filtration

•Gas filtration

•Without upgrading

the main HVAC system

•Energy efficient

Stand alone portable air cleaners provide a practical

health and economic solution

Mix recirculation and supply air

Fast response and portable to give

Clean Indoor Air Quality

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

Note: A payback time of less than 12 months is a ‘no brainer’ decision to implement

Renewable energy options are in excess of ten years and in some cases over fifty years

Incremental Benefits – ISO 50001 Energy management

Motivation – financial efficiency

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21

THANK YOU

ANY QUESTIONS?Download our APP from Google Play

For more information about clean air solutions, improving air quality,

low energy air filters, AHUs (Air Handling Units) and the EPBD, visit

www.lowenergyairfilter.co.uk

www.keepthecityout.co.uk

www.camfil.co.uk

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