1st StageUMUECHEM BOOSTER COMPRESSOR SELECTION AND SIZING - BASE CASE - FIRST STAGEA.PROCESS PARAMETERS:STAGE CALCULATIONSDESCRIPTIONSUCTIONDISCHARGEStageSuction Pressure (ps)Suction Pressure (ps)-2nd formularDischarge Pressure (pd)Discharge Pressure (pd)-2nd formularPressure Ratio - rDisch. Temp (Td)Stage Specific Power Absorbed (from chart 1.2.3-4b)Stage Shaft Absorbed Power (KW)1Flow Rates13.3003.43111.94211.9983.636348.4420.700494.768SYMBOLVALUESYMBOLVALUEStandard MMscf/d6.96.9Shell Petroleum Development Company of NigeriaStandard m3/h8139.868139.86Standard m3/sqs(st)2.26qd(st)2.26COMPRESSOR POWER[kW]2Pressures (Bar)Total Shaft Power (Including 5% for data inacuracies)519.51Gauge2.510.2Total Driver Power (Including 4% for transmission losses)540.29AbsolutePs3.5Pd11.2GAS ENGINE DERATING3TemperaturesAltitude (-3.5% ISO for every 300 m above 150 m)Sea Level0.00oC39.6137.8Temperature (-1.8% ISO for every 50C above 300C)4.68%565.57KTs312.6Td410.84Compressibility FactorStage Polytropic Head [Hp]214.29ZZs0.9892Zd0.9871No. of Impellers7.14214.2886066411Av. Comp. FacZav0.95217.13333333335Polytropic Eff. (table 1.2.3-1)Minimumnp0.800NOTESMaximumnp1.0001The calculations here presented are done in line with procedure outlinedAverage np0.900in Production Handbook Vol. 9, Chapter 1, Section 1.2.3,pages1-89 to 1-107.6Adiabatic exponent for gas (Cp/Cv)MinimumCp/Cv1.2202Indicates selected option in line with guidelines as statedMaximunCp/Cv1.250in Production Handbook.Averagek1.2353Indicates Manual data input.7Polytropic exponent for gasn1.268n-10.268n/(n-1)4.730(n-1)/n0.211B.GENERAL CALCULATIONS1Actual Vol. [m3/s]qs0.702qd0.2882Actual press. (bar)ps1(large)3.431pdN (large)11.592Calculation Spreadsheetps1(small)3.300pdN (small)11.5503Overall pressure ratio (pdN/ps1)ro3.514Max. Stage Ratiors3.645No. of Stages (Logro/Logrs)Q0.97Nearest Whole No.16Theoretical Stage Press. RatiorQ3.51

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2nd StageUMUECHEM BOOSTER COMPRESSOR SELECTION AND SIZING - BASE CASE - SECOND STAGEA.PROCESS PARAMETERS:STAGE CALCULATIONSDESCRIPTIONSUCTIONDISCHARGEStageSuction Pressure (ps)Suction Pressure (ps)-2nd formularDischarge Pressure (pd)Discharge Pressure (pd)-2nd formularPressure Ratio - rDisch. Temp (Td)Stage Specific Power Absorbed (from Chart 1.2.3-4a)Stage Shaft Absorbed Power (KW)1Flow Rates:110.80010.78418.12618.3981.706286.9690.255525.301SYMBOLVALUESYMBOLVALUEStandard MMscf/d19.919.9Shell Petroleum Development Company of NigeriaStandard m3/h23475.8423475.84Standard m3/sqs(st)6.52qd(st)6.52COMPRESSOR POWER[kW]2Pressures (Bar)Total Shaft Power (Including 5% for data inacuracies)551.57Gauge1016.2Total Driver Power (Including 4% for transmission losses)573.63AbsolutePs11Pd17.2GAS ENGINE DERATING3TemperaturesAltitude (-3.5% ISO for every 300 m above 150 m)Sea Level0.00oC42.981.6Temperature (-1.8% ISO for every 50C above 300C)4.68%600.47KTs315.9Td354.64Compressibility FactorsZZs0.9705Zd0.9694Av. Comp. FacZav0.94005Polytropic Efficiency (table 1.2.3-1)Minimumnp0.50NOTESMaximumnp1.001The calculations here presented are done in line with procedure outlinedAverage np0.75in Production Handbook Vol. 9, Chapter 1, Section 1.2.3,pages1-89 to 1-107.6Adiabatic exponent for gas (Cp/Cv)2Indicates Manual data input.MinimumCp/Cv1.2703Indicates selected option in line with guidelines as statedMaximunCp/Cv1.280in Production Handbook.Averagek1.2757Polytropic exponent for gasn1.40n-10.40n/(n-1)3.48(n-1)/n0.29B.GENERAL CALCULATIONS1Actual Vol. [m3/s]qs0.639qd0.4582Actual press. (bar)ps1(small)10.784pdN (large)17.802Calculation Spreadsheetps1(large)10.800pdN (small)17.5503Overall pressure ratio (pdN/ps1)ro1.654Max. Stage Ratiors1.715Number of Stages (Logro/Logrs)Q0.93Nearest Whole No.16Theoretical Stage Press. RatiorQ1.65

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This document is controlled electronically and is uncontrolled when printed&R&13Mechanical Datasheet Otumara Main Compressor Package