PROJECT TITLE :

Determination of a System’s Entropy Using Pyroelectric Sensors

ABSTRACT:

We propose a system for measuring entropy variations, ΔS, in thermal systems using pyroelectric sensors. These sensors convert time-dependent temperature variations into electrical current. Consequently, heat and temperature variations are obtained, and sensor entropy is inferred. Various polyvinylidene fluoride and lead zirconate titanate sensors have been tested. 2 types of measurements are performed. One in the amount, to live entropy variations in an exceedingly heat source, and the opposite on the surface, to live entropy flux delivered by the warmth source. Thermodynamic models and warmth transfer dynamic simulations consider the experimental results and relate the sensor entropy to the heat supply entropy. These results show that pyroelectric sensors can enable entropy monitoring of thermal processes to improve system performance.