Mechanical Technology June 2015

⎪ Sustainable energy and energy management ⎪

Large, modern gensets now available in Africa I ndustrial operations across Africa can lower their fuel costs and minimise their impact on the environment with the new range of high-horsepower QSK95 Series generator sets launched locally by the African division of Cummins – a global leader in the manufacture, sales and servic- ing of diesel engines and related technology. The QSK95 generator sets are Cummins Power Generation’s most powerful diesel generator sets to date, offering up to 3.5 MW at 60 Hz and 3.75 MVA at 50 Hz. They are engineered with the highest kW/m 2 power to footprint ratio in their class, resulting in a 20% improvement in power density. series is designed to lower the total cost of ownership by reducing installation expens- es, fuel costs and maintenance require- ments –all while maintaining Cummins’ high standards of reliability,” says Cummins Southern Africa Power Generation director Kobus Coetzer. Fewer maintenance requirements, lon- ger service intervals and 25 000 hours to major overhaul make these generator sets ideal for prime power applications. They ramp up to 100% of rated load in a single step, and are ready to accept facility load in less than 10 s. Other features include:

potential leaks and failures. • A positive flow circulating pump in the coolant heater that enables even heating throughout the engine block for faster and more reliable starts. • An oil cooler that provides access to the thermostat without lifting the engine. • A mounting rail design allows the al- ternator to slide back on the chassis without being lifted. • Larger engine hand holes facilitate cylinder block access without dropping the oil pan. • Global availability of technicians, parts and engineering support. The QSK95 Series generator sets are avail- able in multiple rating options for specific power generation applications, including: continuous, prime power, mission critical and standby. Cummins also offers a data centre continuous (DCC) rating specifically tailored to meet data centre power requirements. q

• Reduced costs, thanks to three- year/1 000 hour oil and filter change intervals. • Low temperature after-cooling, which

The durable and robust QSK95 Series generator sets are ideally suited for mining, oil and gas, or any project where harsh conditions, challenging environments and the demand for reliable, continuous remote power exist. These generator sets are also engineered to deliver reliable, mission criti- cal power protection without interruption – an uptime requirement shared by data centres, hospitals, water and wastewater treatment plants, and utilities. “Over 8 000 hours of operation, the QSK95 can achieve fuel savings of more than US$400 000 (R4-million+). The

optimises radiator pack- age sizing and contributes to the generator’s smaller footprint. • Condition-based mainte- nance sensors that monitor air and fuel filter restrictions and prompt filter changes only when required. • A single shaft, dual element cooling pump that minimises

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Mechanical Technology — June 2015

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