With over 350,000 employees worldwide and 20% of the world's power generated through its products, Siemens is quite literally a global innovation powerhouse. Within its vast product range that includes smart infrastructure, healthcare and renewables, gas turbines form the backbone of Siemens's ongoing energy transition to low-carbon and eventually zero-carbon power generators.
Pursuing engine thermal efficiency
A gas turbine is a combustion engine containing a rotating gas compressor, and a combustor connected by a shaft to a turbine.
Air is drawn into the compressor, then pressurised and heated by injecting fuel into the combustion chamber. This pressurised, high-temperature gas stream expands within the turbine, rotating the shaft which drives the compressor.
At this point, mechanical energy is then translated into electrical energy to power aircraft, trains, ships and electrical generators straight to our homes.
Some energy is lost during this process. As a leading experimental researcher in gas turbine internal air systems and sealing technology, we set out to better understand the governing flow and heat transfer within these power generators. More efficient gas turbines mean a lower carbon footprint and a step closer to Siemens ultimate goal of zero emissions.