Notificação do usuário: "Pump cannot deliver flow or head"
Aplica-se a
Produto(s):
WaterGEMS, WaterCAD, HAMMER, SewerCAD, SewerGEMS, CivilStorm
Versão(ões):
CONNECT Edition, V8i
Área:
Cálculos
Autor Original:
Terry Foster, Grupo de Suporte Técnico da Bentley
Problema…
Estação de bombeamento e combinação de curvas de bombas
Aplica-se a
Produto(s):
WaterGEMS , WaterCAD, SewerCAD
Versão(ões):
V8 i SELECTseries 2 and higher, CONNECT Edition
Área:
Modelagem
Autor Original:
Mark Pachlhofer, Grupo de Suporte Técnico da Bentley…
Solução de problemas de pressões negativas em bombas, junções e outros elementos de nós
Aplica-se a
Produto(s):
WaterGEMS, SewerCAD, HAMMER, WaterCAD
Versão(ões):
V8i, CONNECT Edition
Área:
Modelagem
Autor Original:
Dan Iannicelli , Mark Pachlhofer e Jesse Dringoli, Grupo de Suporte Técnico…
Simulating an existing water distribution system in waterGems and optimising it on the basis of Pattern variation.
Hello everyone,
I am trying to simulate an existing water distribution system into waterGEMS and later I wish to alter it's patterns of pumping, demand, etc.. in order to optimise it in terms of energy consumption.
THE PHYSICAL NETWORK HAS BEEN CREATED…
PSV Settings and Reverse Flow through Pump
First I have a PSV and I was wondering if someone could explain the difference in setting it to the max elevation of the tank and the minimum elevation of the tank and if the sets below were correct way of doing it. When I set it to the max elevation…
Modeling pump dicharge regardless of waterdemand
I'm modelling an underpressure network with a pumping station including various pumps. The model is buildup and base demands are given to the network. The demands are based on the pupulation off 3 years ago. Actually in the reality the population has…
negative pressure - groundwell [ submersible pump - what is the problem ?? please help
i dont know what is the problem of this system
pump definition is good
elevation of nodes is correct
i increased the trials to 200
i added a imaginary tank
but presuure is -16 000 kPa right at top of the well
what is the problem ???
Modeling a Connection to an Existing System
Product(s):
WaterGEMS, WaterCAD, SewerGEMS, SewerCAD
Version(s):
V8i, CONNECT Edition
Area:
Modeling
Original Authors : Scott Kampa, Jesse Dringoli, Tom Walski
Background
If you are modeling only a portion of a larger…
Pump selection for a closed system
Product(s):
WaterCAD, WaterGEMS
Version(s):
10.XX.XX.XX, 08.11.XX.XX
Area:
Modeling
Problem
When designing a closed system with only demands downstream (no storage), how can the program help me select a pump? The system head…
Estimating a pump curve for a model
Applies To
Product(s):
WaterGEMS, WaterCAD, SewerCAD, SewerGEMS, CivilStorm
Version(s):
08.11.XX.XX
Area:
Layout and Data Input
Problem
How do I develop a pump curve if the only known information is…
How to develop a pump curve for a well pump when the only information I have is the well capacity(MGD)? [WaterGEMS]
I have a model for a city(In WaterGEMS) with multiple Groundwater/Surface Water/Repump stations. Apparently, one of the Groundwater well pump has incorrect pump curve (head vs flow).
I need to develop a new pump curve with the only info on hand being…
Modeling multiple pipes downstream of a pump
Applies To
Product(s):
WaterGEMS, SewerGEMS, CivilStorm, SewerCAD, HAMMER, WaterCAD
Version(s):
08.11.XX.XX, 10.XX.XX.XX
Area:
Layout and Data Input
Original Author:
Mark Pachlhofer, Bentley Technical…
User Notification: "Pump cannot deliver flow or head"
Applies To
Product(s):
WaterGEMS, WaterCAD, HAMMER, SewerCAD, SewerGEMS, CivilStorm
Version(s):
CONNECT Edition, V8i
Area:
Calculations
Original Author:
Terry Foster, Bentley Technical Support Group
Problem…
Simulate bypass flow through a pump that is turned off
Product(s):
WaterGEMS, WaterCAD
Version(s):
08.11.XX.XX, 10.XX.XX.XX
Area:
Modeling
Problem
When modeling a pump in WaterGEMS, is there a way to have the pump turn off, but still allow flow through the pump. Problem…
Using patterns to control pumps or reservoir HGL over time
Product(s):
WaterGEMS, WaterCAD, HAMMER
Version(s):
V8i, CONNECT Edition
Area:
Layout and Data Input
Problem
How can I use patterns to change the pump speed over time (or turn it on/off based on time), or reservoir hydraulic…
How do you associate a pump to a pump station?
Product(s):
WaterCAD, WaterGEMS, SewerGEMS, SewerCAD
Version(s):
08.11.XX.XX, 10.XX.XX.XX
Area:
Layout and Data Input
Problem
How do you associate a pump to a pump station?
What is the difference between a pump…
The flow out of my pump is zero, but the pump is set to ON and is active.
Applies To
Product(s):
SewerGEMS, SewerCAD
Version(s):
V8i, CONNECT Edition
Area:
Modeling
Original Author:
Mark Pachlhofer, Bentley Technical Support Group
Problem
The flow out of my pump…
Fire flow nodes are failing because of low pressures on the suction side of a pump
Applies To
Product(s):
WaterGEMS, WaterCAD
Version(s):
CONNECT Edition, V8i
Original Author:
Mark Pachlhofer, Bentley Technical Support Group
Problem
Fire flow nodes are failing the zone or system pressure…
Pump Station and Pump Combination Curves
Applies To
Product(s):
WaterGEMS , WaterCAD, SewerCAD
Version(s):
V8 i SELECTseries 2 and higher, CONNECT Edition
Area:
Modeling
Original Author:
Mark Pachlhofer, Bentley Technical Support Group
…
User Notification: Multiple point pump curve contains non-increasing flow points.
Product(s):
WaterGEMS, WaterCAD, SewerGEMS, SewerCAD
Version(s):
08.11.XX.XX and 10.00.00.XX
Area:
Layout and Data Input
Problem
When computing or validating the model the following user notifications appear.
Multiple…
After computing the model, the pump efficiency results are listed as N/A
Applies To
Product(s):
WaterGEMS, WaterCAD
Version(s):
CONNECT Edition, V8i
Area:
Output and Reporting
Problem
After computing the model, the pump efficiency results listed as N/A in the pump properties or the pump…
How do I find the Total Dynamic Head (TDH)?
Product(s):
WaterGEMS, SewerCAD, WaterCAD, SewerGEMS, CivilStorm
Version(s):
CONNECT Edition, V8i
Area:
Calculations
Problem
How can I find the Total Dynamic Head (TDH) of one or more pumps?
Solution
The Total Dynamic…
Why is the “lag pump count” field not available when selecting Fixed Flow as the “VSPB Type”?
Product(s):
WaterGEMS, WaterCAD, HAMMER
Version(s):
08.11.XX.XX and 10.00.XX.XX
Area:
Layout and Data Input
Problem
Why is the “lag pump count” field not available when selecting Target Flow as the “VSPB Type”?
How can the…
Troubleshooting negative pressures at pumps, junctions, & other node elements
Applies To
Product(s):
WaterGEMS, SewerCAD, HAMMER, WaterCAD
Version(s):
V8i, CONNECT Edition
Area:
Modeling
Original Author:
Dan Iannicelli , Mark Pachlhofer, and Jesse Dringoli, Bentley Technical Support…
Why can't I reach my desired flow in my pump model
Hello
I have designed a well pump in watergems. I got the error messages of negative pressure and exceeding the maximum operating point specified for the pump curve. I was able to solve these problems by changing my pumps, correcting my pump curves…