Recall from the section of this paper that focused on the operation of venturi-style burners that a natural derate of [approximately equal to]1.
of Manufacturer's Recommended Code AFUE System Stages Derate for Altitudes above Type 2000 ft (610 m) A 90% Hot Surface 1 2% per 1000 ft (305 m) B 92% Hot Surface 1 4% per 1000 ft (305 m) C 80+% Hot Surface 1 4% per 1000 ft (305 m) D 80% Hot Surface 2 4% per 1000 ft (305 m) E 78% Pilot 1 4% per 1000 ft (305 m)
In many cases however a minimum in the CO-AF concentration trend line does appear, especially at the 2000 ft (685 m) and 6700 ft (2040 m) altitudes, and it tends to coincide with the manufacturer's recommended derate.
This technology has now been applied to the recently launched QSK78, offering 3,500 hp output for any high altitude mine in the world today without derate
The QSK78 engine features Cummins most advanced electronic engine management and air-handling technology, capable of operating in the most severe conditions, including altitudes as high as 12,000 feet, without derate
of the engine will further enhance engine life to an estimated time between removal in excess of 10,000 hours.
Through real-time insights into asset health and early warning of abnormal equipment performance, owners and operators of fleets of assets are able to reduce forced outages and derates
, reduce maintenance costs and improve worker productivity.
The ability to provide early warning of incipient faults enables operators to respond quickly to fluctuating demand and decrease derates
and forced outages.