Microscopic thermal machines using run-and-tumble particles

Microscopic thermal machines that are of the dimensions around few hundred nanometers have been subject intense study over last two decades. Recently, it has shown efficiency such engines can be enhanced by using active Ornstein-Uhlenbeck particles (AOUP). In this work, we numerically behaviour tiny and refrigerators use an run-and-tumble particle (RTP) as working system. We find results for engine mode in sharp contrast with those AOUP, thus showing nature activity a strong influence on qualitative behaviours nonequilibrium cycles. The is found to smaller general than passive microscopic engine. However, when applied protocol time-reversed, resulting refrigerator much higher coefficient performance under these conditions. effect variation different parameters explored. A non-monotonic force found.