Chemical Process Engineering Volume 1. A. Kayode Coker

Power AFFINITY LAWS CENTRIFUGAL PUMP EFFICIENCY Centrifugal Pump Specifications Pump Specifications (Figures 6.43a and b) Steps in Pump Sizing Reciprocating Pumps Significant Features in Reciprocating Pump Arrangements Application Performance Discharge Flow Patterns HORSEPOWER Pump Selection Selection Rules-of-Thumb A CASE STUDY Variables Descriptions SIMULATION ALGORITHM Problem Discussion Pump Cavitation Factors in Pump Selection COMPRESSORS General Application Guide Specification Guides GENERAL CONSIDERATIONS FOR ANY TYPE OF COMPRESSOR FLOW CONDITIONS Fluid Properties Compressibility Corrosive Nature Moisture Special Conditions Specification Sheet PERFORMANCE CONSIDERATIONS Heat Rejected to Water Drivers Ideal Pressure – Volume Relationship Actual Compressor Diagram DEVIATIONS FROM IDEAL GAS LAWS: COMPRESSIBILITY Adiabatic Calculations Charles’ Law at Constant Pressure [9] Amonton’s Law at Constant Volume [9] Combined Boyle’s and Charles’ Laws Entropy Balance Method [7] Isentropic Exponent Method [7] COMPRESSION RATIO Horsepower Single Stage Actual Brake Horsepower, Bhp Actual Brake Horsepower, Bhp (Alternate Correction for Compressibility) Temperature Rise – Adiabatic Temperature Rise – Polytropic A CASE STUDY USING UNISIM DESIGN R460.1 SOFTWARE FOR A TWO–STAGE COMPRESSION Solution Accidentally Closing the PFD Object Palette Specifications COMPRESSION PROCESS ADIABATIC HEAD DEVELOPED PER SINGLE-STAGE WHEEL Polytropic Head Polytropic Brake Horsepower Speed of Rotation TEMPERATURE RISE DURING COMPRESSION Sonic or Acoustic Velocity MACH NUMBER [35] Specific Speed COMPRESSOR EQUATIONS IN SI UNITS Polytropic Compressor Adiabatic Compressor Efficiency Mass Flow Rate, w Mechanical Losses Estimating Compressor Horsepower Multistage Compressors Multicomponent Gas Streams AFFINITY LAWS Speed Impeller Diameters (Similar) Impeller Diameter (Changed) Effect of Temperature AFFINITY LAW PERFORMANCE TROUBLESHOOTING OF CENTRIFUGAL AND RECIPROCATING COMPRESSORS