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DENAIR Group is a Sino-German joint venture stock-listed company, which is a professional China manufacturer of air compressor.
As the development of economic and better to achieve sustainable development, reducing energy consumption and the dependancy on fossil fuels is our major challenge. "Energy saving first, Mutual value shared" is DENAIR Group Slogan, and always working on it.
At present, one stage compression air compressor widely used in different industry for its advantage. But compared with one stage compression air compressor, two stage compression screw air compressor more energy saving as below information:
(1)Lower compression ratio.
(2)less impact on bearings and other accessories.
(3)more stable performance.
(4)higher energy efficiency.
(5)lower energy consumption.
Hereby provide a example to you better understanding of its advantage:
DA-160 VS DA-132+
With the same working pressure 7.5bar, and the voltage are 380V/3ph/50hz
A: DA-160 air delivery is 27.36m3/min
Motor Power is 160kw
Total power consumption at full load: 175kw
Specific power=Total Power consumption/Air delivery=175kw/ 27.36m3/min= 6.4kw/(m3/min)
B: DA-132+ air delivery: 26.78m3/min
Motor Power is 132kw
Total Power consumption at full load: 156kw
Specific Power= Total Power consumption/Air delivery=156kw/26.78m3/min=5.82kw/(m3/min)
Based on the data mentioned above, let’s assume that the compressor units will operate 24 working days a day and 300 days a year, so the power consumption will be the following:
|Power consumption of each unit||5.82kw/(m3/min) * 26.78m3/min* 24 running hours per day * 300 running days per year=1122189KW.H||6.4kw/(m3/min) * 26.78m3/min* 24 running hours per day * 300 running days per year=1234022KW.H|
|Power consumption difference||If the end user use two units for 24 working days a day and 300 days a year, the saved power by choosing Proposal A will be=1234022KW.H - 1122189KW.H=111833KW.H|
As we can see the power consumption difference above, two stage compression air compressor more energy saving and will be a new trend in future.