LIQUID VISCOSITY EFFECTS ON PUMPING SYSTEMS. PART 2.

THIS DISCUSSION CONCERNS ITSELF WITH TWO ADDITIONAL CONSIDERATIONS IN TERMS OF VISCOUS LIQUID EFFECTS ON SYSTEM HEAD LOSS: VISCOSITY CAUSED HEAD LOSS CHANGES FOR A SMOOTH TUBING; COPPER TUBE, PLASTIC, ETC; A SYSTEM DESIGN ORIENTED VISCOUS HEAD CORRECTION TABLE.EVALUATION OF VISCOSITY CAUSED CHANGES IN SMOOTH TUBE HEAD LOSS FOLLOWS THE SAME PROCEDURE AS PREVIOUSLY SHOWN FOR IRON PIPE.(SEE ENTRY ABOVE) CORRECTION FOR OTHER TUBE SIZE, K, M AND FOR HEAT EXCHANGER TUBES (STUBB'S GAUGE) AS WELL AS FOR SMOOTH PLASTIC CAN BE MADE BY 5TH POWER CORRECTION AND/OR LOGARITHMIC CROSS PLOTTING.THE BASE FLOW-PRESSURE DROP CHARTS FOR IRON PIPE AND SMOOTH TUBE CAN BE CONSIDERED AS UNIVERSALLY APPLICABLE SINCE THEY, TOGETHER WITH THE OUTLINED PROCEDURES, PERMIT SIMPLE ASSESSMENT OF HEAD LOSS AND FLOW CONDITION (LAMINAR OR TURBULENT) FOR ANY PIPE TUBE TYPE OR SIZE AND FOR ANY LIQUID VISCOSITY.WHILE THE BASE CHARTS PROVIDE GREAT SIMPLIFICATION OF THE VISCOUS FLOW PROBLEM RELATIVE TO PREVIOUSLY USED METHODS, THEY ARE NOT REALLY APPLICABLE TO USE FOR SYSTEM DESIGN.THE BASE CHARTS DO NOT PROVIDE FOR 'DESIGN JUDGMENT' FACTORS; PIPE SIZING COMPARISONS RELATIVE TO LIQUID VISCOSITY EFFECTS ON HEAD LOSS AND FLOW CONDITION.(BASED ON JNL.).(SEE ENTRY 2.293PA5 FOR PART 1).