What factors are to be considered for designing a pump?
Broadly, following are the main factors which should be considered while doing selection of pump for a particular scheme:
- Capacity: ADVERTISEMENTS:
- Power: The power which is used for running pumps should be available easily at low cost.
- Maintenance:
- Efficiency:
- Depreciation:
- Cost of labour:
- Number of pumping:
What are the factors to be considered for designing a centrifugal pump?
Matching a centrifugal pump to a system means making sure to consider some important factors. These include the flow rate, the system design, the amount of resistance in the system and the system curve. The pump has to be the right size for the system.
How do you design a pump?
The steps to follow to select a centrifugal pump are:
- Determine the flow rate. To size and select a centrifugal pump, first determine the flow rate.
- Determine the static head.
- Determine the friction head.
- Calculate the total head.
- Select the pump.
What are the points to be kept in mind while selecting a particular pump?
Before you can select a pump that will fit your needs, you must know four things: 1) the total head or pressure against which it must operate, 2) the desired flow rate, 3) the suction lift, and 4) characteristics of the fluid.
What are pump characteristics?
Pump characteristics—such as flow, pressure, efficiency and brake horsepower—are shown graphically on a pump curve. The first item to look at is the size of the pump.
Why is pump design important?
The standards are important because they allow the dimensional interchangeability of pumps and shaft packing of different manufacturers, but only as long as the manufacturers conform to the standard.
What is pump head calculation?
The pump head H=z+hw z is the height difference of the pumping height, that is, the water level from the inlet to the water surface at the exit. Hw is the head loss, including the Darcy formula or Xie Cai formula for calculating the head loss hf and the local head loss hw hf along the path.
What are the steps involved in the selection of a pump for a hydraulic circuit?
1) Pressure: It is the basic selection criteria. Pump pressurizes the hydraulic oil to the level required by actuator. For pressure of 150 to 250 vane pump is suitable and for above 500 bar pressure piston pumps are useful. 2) Flow of pressurized oil: Volumetric output of pump is measures in LPM.