Pumping Stations & Rising Mains

Water Pumping Station

Pumping stations are necessary to transport water where there is an insufficient head. The capital cost of pumping station is high, but the most expensive part is the energy supply for pumps (mostly electrical). Therefore, it is very important that pumping station design have a high degree of efficiency and are maintained properly. The pumping station consists of water intake structures for suction pipes of pumps, the pumps themselves, motor, gear from motors to the pumps, pressure pipeline transporting water from the pumps to the water-discharge device, etc. Thus, the conception of a pumping installation includes all the components of the operation depends on the pump performance.

POD methodology for conceptual and Preliminary Design

➣ Field visits and preparation of the report
➣ Determination of pumping capacity based on existing and futured conditions and seasonal changes
➣ Hydraulic calculation and optimizing pumping head and pipeline size
➣ Optimizing number of pumping stations in case of high-pressure requirements and select design pumping TDH
➣ Economical comparison of pumping station options as per cubic of water costs
➣  Reliability, flexibility, and simplest operation consideration
➣ Selection of pump type based on mounting condition (submersible, dry horizontal, or dry vertical) as well as type of service (Boosting, Firefighting, Jockey, etc.)
➣ Selection of pump category based on specific speed
➣ Identifying the pump operating point based on pump performance curve and system curve with a priority of pump operation in BEP (Best Efficiency Point) condition➣Assessment of available NPSH concerning required NPSH
➣ Assessment of the static head variation (i.e. pumping from dams) and required VFD system as well as determination of pump performance curve for different speeds based on affinity laws
➣ Determination of break power consumption and electro-motor selection
➣ Assessment of water hammer and identifying required surge system
➣ Assessment of hydrophore system in direct pumping to distribution networks
➣ Identifying the required strainers or filtration
➣ Identifying BFD / PFD
➣ Preparation of preliminary pumping station arrangement
➣ Preliminary CAPEX and OPEX estimation
➣ Preparation of field surveys scope of the works (i.e. topographical maps, geotechnical investigation, water analysis)

POD methodology for Detailed Design

➣ Assessment of surveying, geotechnical investigations, and water analysis
➣ Flooding risk assessment and protective solutions
➣ Preliminary design review
➣ Pumping station and sump tank arrangement
➣ Mechanical design

• Mechanical details of piping and fittings
• Determination of pumping collector wall thickness
• Thrust block calculation
• Surge tank /or hydrophore mechanical calculation

➣ Architectural design
➣ HVAC system design
➣ Firefighting system design
➣ Structural design
➣ Electrical & Instrument design
➣ Control philosophy
➣ P & ID
➣ Site landscaping design
➣Auxiliary budlings and units design

• Guard house
• Operation building
• Emergency diesel building and daily tank
• Substation
• Other buildings if required (Administration, Chlorination, Workshop, and Store)

➣ Utility design

• Potable water system
• Storm water system
• Site sewerage system
• Site surrounding fence
• Site green area

➣ 3D-Modeling
➣ Equipment specification
➣ Civil work specification
➣ MTO /or BOQ
➣ Preparation of tender documents if requested