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    WR Pump 2-1 & 2-2

    Uploaded by

    Bhuneshwar Chelak
    This document contains hydraulic calculations for a wet riser system serving the Marina View mixed occupancy development. It calculates the minimum required pump pressure of 424.59 kPa to supply 57 liters per second of flow to the highest landing valve that is 1 meter above the pump, through 150mm diameter pipes that are 62 meters long with 8 bends adding 24 equivalent meters.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PDF, TXT or read online from Scribd

    WR Pump 2-1 & 2-2

    Uploaded by

    Bhuneshwar Chelak
    79 views1 page
    This document contains hydraulic calculations for a wet riser system serving the Marina View mixed occupancy development. It calculates the minimum required pump pressure of 424.59 kPa to supply 57 liters per second of flow to the highest landing valve that is 1 meter above the pump, through 150mm diameter pipes that are 62 meters long with 8 bends adding 24 equivalent meters.

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    water column

    Original Title

    WR pump 2-1 & 2-2

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    © Attribution Non-Commercial (BY-NC)

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    This document contains hydraulic calculations for a wet riser system serving the Marina View mixed occupancy development. It calculates the minimum required pump pressure of 424.59 kPa to supply 57 liters per second of flow to the highest landing valve that is 1 meter above the pump, through 150mm diameter pipes that are 62 meters long with 8 bends adding 24 equivalent meters.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    79 views1 page

    WR Pump 2-1 & 2-2

    Uploaded by

    Bhuneshwar Chelak
    This document contains hydraulic calculations for a wet riser system serving the Marina View mixed occupancy development. It calculates the minimum required pump pressure of 424.59 kPa to supply 57 liters per second of flow to the highest landing valve that is 1 meter above the pump, through 150mm diameter pipes that are 62 meters long with 8 bends adding 24 equivalent meters.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 1

    Project : System :

    Marina View Wet Riser System (WRP 2-1 & 2-2)

    Date : 12.04.09

    HYDRAULIC CALCULATIONS FOR WET RISER SYSTEM


    Minimum Requirement (CP29:1998 & Fire Precaution Act in Building 2002) The running pressure/flow for wet rising mains :Minimum running pressure at each landing valve : min 3.5 bar and max 5.5 bar Type of Occupancy : Mixed Occupancy Minimum Flow requirement : 57 l/s No. of rising mains : 2 nos Height from pump to Landing Valve : 1 m (Highest Landing Valve) Design Data Wet riser pipe diameter Pipe length from pump to most unfavourable landing valve No. of bends and fittings Equivalent length of bends and fittings (3m per bend) Total Equivalent Length Total Flow Rate Using Hazen-William formula: Q1.85 Pipe Frictional Loss , P = 6.05 x 107 C1.85 x d4.87 Pipe Frictional Loss = PxL Total Pressure Loss through pipe , PL Pressure Summary : Static Gain = Hx10Kpa/m Pipe Frictional Loss = PxL Minimum Running Pressure Total Pressure required Pp - LV 150 62 8 24 86 3420 0.751 64.588

    d=

    150

    150

    L= Q= P=

    0 0 0 0.000 0.000

    0 0 0 0.000 0.000

    150 0 0 0 0 0

    mm m nos. m m l/min

    0.000 kPa/m 0.000 kPa 64.59 kPa

    10.00 Kpa 64.59 Kpa 350.00 Kpa 424.59 Kpa

    Wet Riser Pump Selected

    3420 l/min @

    424.59 kPa

    (Minmum)

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