Energy conservation in Air Compressor

Reducing Compressed air leakages in the plant and thereby reducing running hours of air compressors on load

Description of Existing system and its operation- Leakage test was conducted and leakage percent was found to be around 35%

Description of Proposed system and its operation-
In a good air system, the permissible air leakage is 10% only and hence around 25% leakages need to be plugged.
 

Energy saving calculations:     Average Unload time 9 Seconds Average load time 15 Seconds Percent leakage= Average load time/(Average load time + Avg. Unload time) x 100     0.375   Percent leakage= 37.50%     This leakage is high and should be brought down.   Avg. Power consumption of bigger air compressor 58.5 on load and 39.1 on un-load for screw comp no-4   Air leakages which should be plugged 27.50%   Average power which can be saved per annum by plugging leakages for 24 hrs of its use per day. Assuming comp runs on load is around 60% of total time 28041 Units       Annual Energy saving potential 28041 units   Annual cost saving @ Rs. 8/Unit 224326   Annual cost Saving in INR INR 224326/-   Investment INR 5000/-   Simple payback period 0.02 Year

What is the function of piston ring?

Piston rings are metallic seals and have the function of sealing the combustion chamber from the crankcase and assuring the flow of heat from the piston to the cylinder. Other functions are to prevent the oil not needed for lubrication from passing from the crankcase to the combustion chamber and to provide a uniform oil film on the cylinder bore surface.