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Pump Overdesign ‣ Overdesign resulting actual operation away from BEP BID evaluation-efficiency difference of ½ to 1% System clearance } Lighter shaft To Check 8
Handling Pump Overdesign & Part-Load with Time Approaches Methods – Shift Pump Curve – Shift System Curve – Shift Both – Throttling by Control Valves – Bypassing Pump – Two pumps in series – Start-Stop Operation – Variable Speed Operation – 2-Speed Motor 9
Page 1 and 2: ENERGY SAVING IN PUMPS, FANS & COMP
Page 3 and 4: Energy Saving in Pumps Pumping Sys
Page 5 and 6: Life Cycle Cost - Pumping System CO
Page 7: Typical Pump Curves Pump Curve Oper
Page 11 and 12: Part Load Operation Bypassing Pump
Page 13 and 14: Effect of RPM Change of Efficiency
Page 15 and 16: Part Load Operation Energy effici
Page 17 and 18: Pump Selection Specific Speed N
Page 19 and 20: BEP of Pumps - Flowserve corp 19
Page 21 and 22: Effects of Viscous Fluid on Pump Cu
Page 23 and 24: Vendor Offer Evaluation Compare o
Page 25 and 26: Rotor Trim Correction 25
Page 27 and 28: Change Blade Number 27 Capacity, %
Page 29 and 30: Impeller With Angle-Trim at Periphe
Page 31 and 32: Performance Change with Orifice Hea
Page 33 and 34: Removing Metal from Volute Tongue 3
Page 35 and 36: Different Variable Speed Drives
Page 37 and 38: Pump test at frequent intervals Pe
Page 39 and 40: Efficiency of Electric Motors (Four
Page 41 and 42: Handling Fan Over design & Part Loa
Page 43 and 44: Inlet Vane Control on Backward Curv
Page 45 and 46: Power Consumption for Part-Load Con
Page 47 and 48: Power Consumption for Part-Load by
Page 49 and 50: Handling Overdesign & Part Load In
Page 51 and 52: Control of a Gas Compressor Suctio
Page 53 and 54: Part Load Operation Parabolic Syst
Page 55 and 56: Part Load Operation Comparison of P

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