CPD: Compressed air
Compressed air, often known as the fourth utility, is used throughout industry and other sectors as a very convenient and popular means of transmitting energy from the incoming source to usage points for many applications and processes at several pressure levels. If the system is designed and correctly operated compressed air is safe but it can be very dangerous if improperly applied.
Recent developments from the compressed air industry, such as improved compressor and drive motor efficiency, variable speed drives, electronic compressor control systems, and online condition monitoring, have helped to make air systems more efficient and these give opportunities for energy and other cost of ownership savings that can provide good paybacks on capital expenditure.
