Questions to be asked and answered before buying new compressor, doing assessment or re-designing energy efficient Compressed Air System
Compressor Installation Specific
1. How old is this compressor? How many hours will the compressor run ?
2. What is the average air consumption ?
3. What is your electrical unit cost ?
4. Does it change for day shift / night shift ?
5. What is the plant minimum pressure ?
6. What is the existing pressure band Minimum / Maximum / Useful Differential ?
7. Are there several compressors running together ?
8. How are they controlled ?
9. What ancillaries are fitted (dryers, filters) ?
10. What is the pressure drop Initial & at element change ?
11. What is the size of there pipe work ?
12. What is the pressure drop they have ?
Compressed Air System Specific
1. What do you think the min pressure is ?
2. Is there a piece of production equipment that needs a higher pressure than the majority of the plant ?
3. Do you have pressure drop ?
4. Do you know size of piping distribution ?
5. Are you happy with current service supplier who is currently doing this work ?
6. Do you have production problems ?
7. How reliable is your existing system ?
8. Do you have air quality issues and if yes what happens ?
9. How much do you pay for electricity ?
10. Do you know how efficient your compressed air systém is ?
11. Working hours of air end ?
12. Are you proactive in fixing leaks ?
13. Do you have any unregulated air users ?
14. What is your shift rotation and does demand change ?
15. Do you isolate supply to non production areas ?
16. Do you have a LP or HP air system ?
17. Do you have a high failure rate of production equipment ?
18. What happens when the pressure is too low ?
19. Quality of air need and is this different for different air users ?
20. Is there any large volume demand events but short duration ?
21. Do you have sufficient backup machines ?
22. What is the cost of lost production ?
23. When was the last time you audited the air system ?
24. Are you or are you working to ISO 14001 ?
25. Would you consider total air responsibility outsourcing ?
26. Pay as you use ?
27. Air over the fence ?
28. Why do you value your existing service / compressor provider ?
29. Do you use hot water in your production process ?
30. Do you have problems with corrosion in your pipe work ?
31. Is there any product spoilage ?
32. How much money does it cost per hour in lost production if your air fails ?
33. How much are you spending on equipment repairs due to moisture contamination ?
34. How much are your air leaks costing you ?