• Omprakash S. Patil
• Shrikant Shet
• Manish Jadhav
• Dr. Neeraj Agrawal

Now-a-days, increased application of refrigeration and air conditioning systems is responsible for both additional energy demand and menace of ozone depletion. To fight with two jeopardizes of global warming and ozone depletion, CO2 refrigeration and air-conditioning systems are potential replacement of current systems, due to some of the excellent properties of CO2 such as zero ODP & GWP, compatibility with normal lubricants and common machine construction materials, non- flammability and non-toxicity, greatly reduced compression ratio, easy availability, high volumetric refrigerant capacity, and excellent heat transfer properties. In this paper thermodynamic analysis of the modified CO2 transcritical heat pump cycles such as internal exchanger, work recovery turbine and ejector is discussed. Performances of different configurations are presented in terms of maximum COP and optimum discharge pressure. Results exhibit increase in performance of transcritical cycle by adopting ejector configuration.

Transcritical CO2, Heat Pump, Ejector

"Modelling And Simulation of Transcritical CO2 Heat Pump Cycle Configurations", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.500-503, April-2019, Available :http://www.jetir.org/papers/JETIR1904M75.pdf

"Modelling And Simulation of Transcritical CO2 Heat Pump Cycle Configurations", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp500-503, April-2019, Available at : http://www.jetir.org/papers/JETIR1904M75.pdf