Every 4 degree C reduction in inlet air temperature, the compressor can deliver the same flow output at 1.5% less power.
Example:-
A 50 KW rotary air compressor is located in a room with an average temperature 33 degree C. The inlet air is pulled from this room. If the air is ducted in from an outside shaded area, then the inlet temperature average 21 degree C. The compressor can, with this cooler air intake, produce the same air flow using approx. 4% less power.
If the compressor motor efficiency 95% runs 4500 hrs annually, and the cost of electricity is Rs. 7/Kwh, calculate the operating cost savings.
Compressor Energy = 50 Kw x 4500 R. hrs/Yr / 0.95
= 236842.1 Kwh/Yr
4% of Compressor energy = 0.04 x 236842.1 Kwh/Yr
= 9473.68 Kwh/Yr
Operating Cost savings = Rs. 7/Kwh x 9473.68 Kwh/Yr
= Rs. 66315.78/Yr
Example:-
A 50 KW rotary air compressor is located in a room with an average temperature 33 degree C. The inlet air is pulled from this room. If the air is ducted in from an outside shaded area, then the inlet temperature average 21 degree C. The compressor can, with this cooler air intake, produce the same air flow using approx. 4% less power.
If the compressor motor efficiency 95% runs 4500 hrs annually, and the cost of electricity is Rs. 7/Kwh, calculate the operating cost savings.
Compressor Energy = 50 Kw x 4500 R. hrs/Yr / 0.95
= 236842.1 Kwh/Yr
4% of Compressor energy = 0.04 x 236842.1 Kwh/Yr
= 9473.68 Kwh/Yr
Operating Cost savings = Rs. 7/Kwh x 9473.68 Kwh/Yr
= Rs. 66315.78/Yr
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