Ayan Sengupta is a SERB Fellowship Recipient and a PhD student at BITS Pilani. He obtained his Master’s degree in Heat Power Engineering from BIT Mesra. His research focuses on improving energy efficiency of R744 supermarket refrigeration systems for use in warm and hot climatic locations. His research area also includes waste heat recovery, integration of organic Rankine cycles and heat driven ejector chillers with R744 systems, pressure exchanger, CFD and solar energy. He is a recipient of the SERB Overseas Visiting Doctoral Fellowship. At Purdue he will be carrying out numerical as well as experimental study on Pressure exchangers for possible integration with R744 refrigeration systems. Apart from work, he is interested in playing cricket, reading story books and exploring new places.