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CONVERSION CHART
Electric & Diesel Compressors
Generators
FLOWRATE CONVERSION CHART
Blowers
TO CONVERT
cfm
l/Sec
to
m3/min
m3/hour
l/sec
m3/min
m3/hour
cfm
m3/min
m3/hour
cfm
l/sec
m3/hour
cfm
l/sec
m3/min
Multiply By
Air Treatment
0.472
0.0283
1.699
2.119
0.06
0.001
35.315
16.667
60
0.589
0.278
0.0167
Air Receivers
Gas Generation
Air Tools
Hoists & Winches
Energy Efficiency Services
Aftermarket (Parts & Servicing)
PRESSURE CONVERSION CHART
TO CONVERT
psi
kPa
to
bar
Atmospheres
kPa
bar
Atmospheres
bar
Atmospheres
psi
kPa
Atmospheres
psi
kPa
bar
psi
Multiply By
6.895
0.069
0.068
0.01
0.0098
0.145
100
0.987
14.504
101.3
1.013
14.7
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
VIC
QLD
SA
WA
TAS
NT
1.07
1.37
1.02
0.85
0.93
0.35
0.77
Data from Department of Climate Change & Energy Efficiency
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 (@ $0.1/kWh)
*Reducing compressed air supply pressure by 50 kPa = 4% reduction in power usage
AIR LEAKAGE, WASTED ENERGY AND COST FOR EQUIVALENT HOLE DIAMETER
EQUIVALENT HOLE
DIAMETER (mm)
QUANTITY OF AIR
LOST IN LEAKS (l/s)
ANNUAL ENERGY
WASTE (kWh)
ANNUAL COST OF
LEAKS ($ AUD)
1.6
3.2
6.4
12.7
3.2
12.8
51.2
204.8
2,128
8,512
34,040
136,192
$213
$851
$3,404
$13,619
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