Andrey Mityakov
Heatmetry is a science and practice of heat flux measurement. Heat flux plays a great role in our Universe: about 70% of energy transfer by heat. However, scientists measure the heat tens or hundreds times less than temperature. This happened because of there is no useful heat flux sensors. A novel Gradient Heat Flux Sensors (GHFS) invented and created by the authors are presented in the manuscript. GHFS can measure a heat flux of any nature with very small response time – about 10 ns with environmental temperature up to 2000 Centigrade. This allows to online monitoring of many industrial application: turbines, generators, boilers, electrical batteries etc. But first it is necessary to verify sensors by measuring the heat flux in well-known experimental problems: heat transfer from heated plate during free convection, forced convection from heated cylinder in crossflow etc. After described tests were performed, it is possible to trust novel sensors and to make new step – simultaneous measure of temperature and heat flux changing. This allows us to go to another fundamental physical value – entropy. Direct entropy measurement opens new horizons in understanding of thermodynamic processes in industrial application.
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