Ejector is an important component in the jet refrigeration system. A jet pump or an ejector uses primary fluid flow as a drive fluid to entrain secondary fluid. The fluid can be compressible or incompressible fluid which can be used in either single phase ejector or double phase ejector. Experimental setup is designed and developed to perform various trials for different applied pressures. The high-pressure water is pumped to the ejector to entrain the secondary liquid at atmospheric condition. Area ratio is kept constant to calculate flow ratio and pressure ratio. Different loss factors such as diffuser loss factor, mixing loss factor, primary nozzle loss factor, suction loss factors are calculated experimentally and validated with computational fluid dynamics (CFD) simulation results along the ejector. CFD simulations are performed to understand the flow behaviour and various performance parameters such as velocity contours, pressure contours and volume fraction along the ejectors and found in line with the experimental values.

ejector, nozzle, primary and secondary fluids, flow ratio, pressure ratio, diffuser and nozzle loss factors.

Received: October 22, 2020; Accepted: June 16, 2021; Published: July 31, 2021

How to cite this article: Vijay W. Bhatkar, Thermal simulation of a liquid-air jet pump, JP Journal of Heat and Mass Transfer 23(2) (2021), 225-233. DOI: 10.17654/HM023020225

This Open Access Article is Licensed under Creative Commons Attribution 4.0 International License

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