The theoretical power requirements are independent of compressor type the actual power requirements vary with the compressor efficiency. The results indicate that the accuracy of the shortcut method is sensitive to the value of heat capacity ratio, k. The enthalpies and entropies are used to determine the power requirement and the discharge temperatures. The rigorous method is based on an equation of state like the Soave-Redlich-Kwong (SRK) for calculating the required enthalpies and entropies. We will compare the rigorous method results with the values from the short cut methods. In this tip of the month (TOTM) we will present the compressor calculations of a case study.
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