Compressed air applications in Marine
Shipboard Starting Air
Large marine engines require significant torque to initiate operation. This resistance is typically overcome with starting air, where compressed air delivers the powerful initial force required to start the engine. Starting air systems are not only used to start an engine, they also aid in stopping an engine in an emergency, as well as reversing an engine. In some cases, the starting air supply is also used for working air or control air applications, or as an emergency back-up for them.
Marine starting air systems require large volumes of high pressure compressed air. Once generated, it is stored in air receivers - also referred to as air bottles - at approximately 30 to 40 bar until required. Starting air compressors need to maintain stable pressure and flow. Inadequate or fluctuating pressure or flow can lead to difficulties in engine start-up, while excessive pressure or flow may cause undue wear and tear to engine components.
Above all else, starting air compressors must be reliable because quite simply, if the compressor fails the vessel can no longer navigate. So critical is the compressed air supply when starting air systems are employed, that there should always be a redundancy in place. Regular maintenance of the compressed air system is also vital in order to maintain optimum reliability and minimise downtime, supporting smooth and efficient engine operation.
KAESER solutions for shipboard starting air applications
The combination of power, safety and reliability makes the starting air compressors supplied by KAESER the ideal choice for a wide range of applications and vessel types. Their modular design enables quick and straightforward installation, saves space, and ensures maximum maintenance-friendliness. Starting air compressors supplied by KAESER are certified by all major marine classification societies.
Starting air receivers supplied by KAESER are used to store compressed air which is required to start large diesel engines commonly used in for example, ship propulsion systems. Available in steel or stainless steel, the air receivers are supplied in sizes from 30 to 2,500 litres for a working pressure of 40 bar.
Your benefits
- Modular design; custom-made modules ensure very short assembly times. Fully assembled, piped and wired, the units are ready-to-run following minimal installation effort.
- Wide range of options; the compressors are available with different drive options and can be optimally adapted to specific applications using a variety of accessories.
- International certified valves; starting air receivers are equipped with matching valve heads in nominal sizes DN 38 (as per DIN 6276), as well as DN 50 and DN 80. The shut-off, safety, and control fittings are centrally arranged on the valve head and enclosed in a compact housing.
FAQs
Following the manufacturers prescribed maintenance schedule will go a long way towards maintaining the operational reliability of your starting air compressor(s).
Starting air compressors supplied by KAESER require minimal maintenance. For ease of on-board maintenance, four customised service kits - Maintenance A, B, C and D - are available.
Computer-aided parts logistics, constant availability of genuine spare parts and a global network of KAESER subsidiaries assure optimal parts supply. And, KAESER Marine Service is of course only a moment away - no matter where you are, for maintenance requirements and emergency support 24/7.
Typical options available with KAESER starting air solutions include;
- Diesel engine
- Electromagnetic centrifugal or manually operated coupling
- Oil level switch
- Thermostat for compressed air and cooling water circuit
- Ammeter
- Local remote switch
- Sequence selector switch for more than one compressor
- Accessories for seawater cooling
- Special colours
After more information about KAESER solutions for marine starting air applications?
