Centrifugal Compressor Map Prediction and Modification

Centrifugal compressors are utilized in various fields and are used in vast applications. Their operational performance maps are significant to be studied, modified and enhanced. Unfortunately, such maps that describe experimental results do not cover each condition. This is due to expenses as well as the uncovering operational zones. Therefore, map prediction is important, however, it is very complex because of its nonlinearity as well as unstable region that are not easily to be assigned practically. Consequently, the present paper introduced a methodology that predicts the centrifugal compressors performance maps specified at stable and unstable conditions. Enhancement and modification of the compressor performance map is performed using the closed coupled valve and variable drive speed where the later method was more preferable based on shifting of the compressor map towards lower flow rate with less pressure drop.