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FLOWRATE CONVERSION CHART

TO CONVERT

cfm

to

l/sec

Multiply By

0.472

m3/min 0.0283

m3/hour 1.699

l/Sec

cfm 2.119

m3/min 0.06

m3/hour 0.001

m3/min

cfm 35.315

l/sec 16.667

m3/hour 60

m3/hour

cfm 0.589

l/sec 0.278

m3/min 0.0167

PRESSURE CONVERSION CHART

TO CONVERT

psi

to

kPa

Multiply By

6.895

bar 0.069

Atmospheres 0.068

kPa

bar 0.01

Atmospheres 0.0098

psi 0.145

bar

kPa 100

Atmospheres 0.987

psi 14.504

Atmospheres

kPa 101.3

bar 1.013

psi 14.7

Electric & Diesel Compressors

Generators

Blowers

Air Treatment

Air Receivers

Gas Generation

Air Tools

Hoists & Winches

Energy Efficiency Services

Aftermarket (Parts & Servicing)

CONVERSION CHART

CONVERT kWh ELECTRICITY TO CO2 kg /pa

Formula - kWh x hours run p/a x Relevant state CO2 multiplier

INDIVIDUAL STATE CO2 MULTIPLIER CHART

NSW / ACT 1.07

VIC 1.37

QLD 1.02

SA 0.85

WA 0.93

TAS 0.35

NT 0.77

Data from Department of Climate Change & Energy Efficiency

AIR LEAKAGE, WASTED ENERGY AND COST FOR EQUIVALENT HOLE DIAMETER

EQUIVALENT HOLE DIAMETER (mm)

QUANTITY OF AIR LOST IN LEAKS (l/s)

ANNUAL ENERGY WASTE (kWh)

ANNUAL COST OF LEAKS ($ AUD)

1.6 3.2 2,128 $213

3.2 12.8 8,512 $851

6.4 51.2 34,040 $3,404

12.7 204.8 136,192 $13,619

ENERGY SAVINGS AVAILABLE VIA PRESSURE REDUCTION

Energy Savings = 8% kW rating x pressure reduction x operating hours

EXAMPLE 1:

Reducing the system pressure on a 100 Kw air compressor from 8 bar to 7 bar operating for 8000 hours per year

Energy Savings = 0.08 x 110 KW x 1 Bar x 8000

= 70,400 kWh per year

$7,040 (@ $0.1/kWh)

*Reducing compressed air supply pressure by 50 kPa = 4% reduction in power usage