Sophisticated temperature detection is needed in traditional combustion engines, but how can the latest thermal mapping technology drive development in cleaner automotive propulsion systems?
High temperatures are common in combustion engines. Some automotive pistons and turbochargers operate between 400 °C – 700 °C, with some high-performance turbochargers reaching beyond 800 °C. To drive higher thermodynamic efficiencies, operating temperatures in gas turbines now approach 1600 °C. Amongst other challenges, such high temperatures can shorten component life-time, requiring accurate and precise temperature characterisation.
Many temperature measurement technologies have been developed over time, including pyrometry, infrared cameras and thermocouples. The latest in an engineer’s temperature measurement toolbox are Thermal History Coatings (THC) and Thermal History Paints (THPs).