online_pump_pipe_system:  Operating discharge and head in a pump-pipe system Definition sketch of a pump-pipe system    System head-discharge relation: hp = a + bQ2  Pump head-discharge relation: H = c - dQ2 INPUT DATA: [How to use] [Table of loss coefficients] Select:   SI units (metric) U.S. Customary units Pipe diameter D :         Warning: Undefined variable $pipediameterunits in /var/www/html/ponce/onlinepumppipesystem.php on line 491          Pipe length L :         Warning: Undefined variable $pipelengthunits in /var/www/html/ponce/onlinepumppipesystem.php on line 500  Friction factor f :     Elevation E1 :         Warning: Undefined variable $elevation1units in /var/www/html/ponce/onlinepumppipesystem.php on line 514          Elevation E2 :         Warning: Undefined variable $elevation2units in /var/www/html/ponce/onlinepumppipesystem.php on line 522  Entrance loss coefficient Ke :         [Leave blank to set default Ke = 0.5]  Exit loss coefficient KE :         [Leave blank to set default KE = 1]  Sum of bend loss coefficient(s) [zero or more bends] ∑Kb :     Select type of pump head-discharge relation H vs Q:     1. Equation 2. Array • If type (of H vs Q) = 1, enter c and d  in   H = c - dQ2: c :         Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinepumppipesystem.php on line 576      d :         Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinepumppipesystem.php on line 584 • Else, if type (of H vs Q) = 2, enter N and H and Q arrays below: Number of N  values in pump head-discharge relation H vs Q :         Warning: Undefined variable $lengthunits in /var/www/html/ponce/onlinepumppipesystem.php on line 594 N  paired values of H and Q (separate each value with a comma; string length 75 characters, maximum 150). H :     Q :     OUTPUT: The system operating point is at the intersection of system and pump head-discharge relations. Type of head-discharge relation: Warning: Undefined variable $inputheaddischargereset in /var/www/html/ponce/onlinepumppipesystem.php on line 634 Deprecated: round(): Passing null to parameter #1 ($num) of type int|float is deprecated in /var/www/html/ponce/onlinepumppipesystem.php on line 634 0 Operating discharge: Q =  Warning: Undefined variable $discharge in /var/www/html/ponce/onlinepumppipesystem.php on line 647 Deprecated: round(): Passing null to parameter #1 ($num) of type int|float is deprecated in /var/www/html/ponce/onlinepumppipesystem.php on line 647 0   Warning: Undefined variable $dischargeunits in /var/www/html/ponce/onlinepumppipesystem.php on line 647 Operating head: h =  Warning: Undefined variable $head in /var/www/html/ponce/onlinepumppipesystem.php on line 651 Deprecated: round(): Passing null to parameter #1 ($num) of type int|float is deprecated in /var/www/html/ponce/onlinepumppipesystem.php on line 651 0   Warning: Undefined variable $headunits in /var/www/html/ponce/onlinepumppipesystem.php on line 651 [Click on figure to expand] Pump on Wikipedia Sample Input-Output   Your request was processed at  01:36:04 am on April 3rd, 2025   [ 250403  01:36:04 ]. Thank you for running online_pump_pipe_system.   [160611]