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A numerical study of a turbulent gas-liquid droplet flow is presented using the Lagrangian approach for the discrete phase and the Eulerian approach for the continuous phase. The spray nozzle is mounted on the wall of a two-dimensional plane channel, The influence of different directional angles as well as the angle of spray on the velocity and temperature field of the main phase are studied. Three sine categories are used to model the spray with the mean mass diameter of I mm, Two different spray angles are defined, namely 10° and 60°, The average directional angle varies (measured from the wall) from 60° to 120°.

Efficiency of reciprocating compressor is strongly dependent on several parameters. The most important are valve behaviour and heat transfer. Valves affect the flow through the suction and discharge line. Heat flow from the walls to working fluid increases the work of the cycle. Understanding of these phenomena inside the compressor is a necessary step in the development process. Commercial CFD tools offer wide range of opportunities how to simulate the flow inside the reciprocating compressor nowadays, however they are too demanding in terms of computational time and mesh creation. Several approaches using various correlation equation exist to describe the heat transfer inside the cylinder, however none of them was validated by measurements due to the complicated settings. The goal of this paper is to show a comparison between these correlations using in-house code based on energy balance through the cycle.