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Paper Title : Performance analysis of centrifugal compressor with variable diffuser

ISSN : 2395-1303
Year of Publication : 2021
10.29126/23951303/IJET-V7I4P01

Authors: Dr Srikanth Salyan,Dhanesh Gavimath,Dhanush S D,Ganti Akshay,Sanjay Kumar H M

         


Abstract
- This paper includes design and analysis of centrifugal compressors with variable diffuser. The main agenda of this work is to investigate the effects of centrifugal compressors with variable diffuser on mass flow rate, pressure ratio and performance of a compressor, and to optimize the design to get better performances. A standard centrifugal compressor was designed as per the design specifications of NASA’s low speed centrifugal compressor with diffusers having different vanes angles from -6 to +6 degrees. After the performance analysis, we came to know that when a compressor is getting inadequate amount of mass flow rate that can cause surging of the compressor, by increase of diffuser vane angle we can shift the surge point to the lower values so that the mass flow which a compressor is getting could come under operating condition. The negative diffuser angles are benefitting when a compressor gets adequate amount of mass flow as they increase the efficiencies.

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Keywords
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