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Cost function filter back-washing by pumping

Cost Functions

The original cost function (A1) for filter back-washing by pumping is the following:

Función de costo para lavado por bombeo (1)

This has as a variable (x) that represents the pumping capacity in gpm (gallons per minute) which will be the same as the plant. The conversion to L / s is carried out and the following is obtained:

Función de costo para lavado por bombeo (2)+

Additional modifications to this function correspond to the correction of costs per year, with the CCI ENR index of 9547 of the year 2013, to obtain A3. Then the part B2 related to the elasticity index is added. This is done in the same way as explained in the Cost Functions Wiki — General.

With this, the following is the function obtained:

Función de costo para lavado por bombeo (3)

Bibliography

  1. Preliminary Cost Estimation Models for Construction, Operation, and Maintenance of Water Treatment Plants Jwala R. Sharma, Ph.D., M.ASCE; Mohammad Najafi, Ph.D., P.E., F.ASCE; and Syed R. Qasim, Ph.D., P.E., M.ASCE 2013

    Reliable cost estimation of construction, operation, and maintenance (O&M) of water treatment plants is essential for project planning and design. The authors have developed construction and O&M cost models for different unit operations and processes involved in water treatment plants. This paper presents the use of a single cost index to further update construction and O&M costs.

References

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