Abstract
As the flow field experiences drastic changes at the discharge and dummy ports of a scroll compressor, the local geometry and movement, including the sizes, shapes, and movement of the ports and scrolls, have significant impact on the porting process. To assess quantitatively the performance of a given design during porting, the local characteristics of the porting process are studied. The study is conducted both on the field quantity distributions and area-averaged parameters. These field quantities define both temporal and spatial changes of the flow field at the discharge and dummy ports. The investigation on these field quantities, provides a basic understanding of the porting process. The fundamental phenomena controlling the porting process are identified. The area-averaged parameters describe the dynamic features of the porting process. The components involved in the porting process, especially the scrolls, dummy and discharge ports, are studied. The area schedule, mass flowrate, pressure, temperature changes at the dummy and discharge ports are quantified. The impact of the porting process on the compressor efficiency, vibration, and noise generation is analysed.
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More From: Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy
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