Dear Pramod,   To do a ...

Dear Pramod,

To do a detailed estimation, this estimation must be done using the Total Owner Cost that include all the items that could generate any cost durint the project life (cost of the system, operation, maintenance, others).

In this case you must evaluate the cost of any pipe (diameter), pump, electrical component, accessories and others as its operation, maintenance cost, and any other cost. All this must be projected over the time and financial analysis and then compared with the disponible aternatives to chose the best one.

The water velocity is based on the minumum velocity to dont let any solid precipitation and the maximum velocity to rech the best cost-effective performance.

Remember that the drop pressure in a ratio with the square velocity, and it is rated with the cost of the enerrgy to pum the liquid.

You could not use the same velocity in a 15 m pipe to feed 1 l/s steam boiler generator that works at 10 Bar than the used in 14 km pipe to transport 1000 l/s with 1 m H2O in level difference.

Regards,

Orlando D. Gutiérrez Coronado