PLANT AUDITING OF
COMPRESSED AIR SYSTEMS
The compressed Air Challenge Handbook recognizes 3 levels of audits.
Levels of Analysis:
Walk-through Evaluation (1/2 to 2 days)
A walk-through evaluation is an overview of a plant compressed air system by identifying the types, needs and appropriateness of end uses, prssures and air quality requirements.
- The distribution system is analyzed for any apparent problems of size, pressure drops, storage, leaks and drains.
- The supply side is analyzed for types of compressors, and the types, suitability and settings of capacity controls.
- A simple block diagram of the system is drawn.
- Maintenance procedures and training are also analyzed.
- Written report of findings and proposed solutions is submitted.
- Solution and product neutrality should be maintained with any recommendations.
System Assessment (2 to 5 days)
A system assessment is more detailed that a walk-through evaluation of a plant compressed air system.
- In addition to identifying the items and problems of the walk-through evaluation, readings are taken at appropriate locations to identify the dynamics of the system.
- A simple block diagram of the system is drawn, also a pressure profile and a demand profile, to help identify potential problems and how they could be resolved.
- Again, maintenance procedures and training are reviewed.
- A written report of findings and recommendations is submitted.
- Solution and product neutrality should be maintained with any recommendations.
System Audit (3 to 10 days)
A system audit is similiar to a system assessment but in more depth and detail.
- Data logging of readings throughout the system is conducted for more in-depth analysis of the dynamics of the system and resulting problems.
- Again, maintenance procedures and training are reviewed.
- The objective is a proper alignment of the supply side and the demand side for optimum efficiency, energy savings and reliability. A baseline is established, against which the results of any proposed changes are measured.
- A comprehensive written report of all findings, recommendations and results is submitted.
- Solution and product neutrality should be maintained with any recommendations.
Compressed Air Audits
