Cathodic Protection for On-Grade Storage Tanks and Buried Piping

phase is expected to be completed by the end of 2011. The system consists of one raw water intake pump station (IPS), three booster pump stations (BPS 2, 3, and 4), and multiple parallel 2200-millimeter (mm) and 2600-mm diameter pipelines that run approximately 30 kilometers (km) from the Nile River to the newly constructed New Cairo Potable Water Treatment Plant (WTP). Construction will be completed in eight pump installation phases, with design flows ranging from 6 cubic meters per second (m3/sec) at Phase 1 to an ultimate flow of 48 m3 Because the pumping capacity required for Phases 5-8 is to be supplied by a parallel system of pump stations and pipelines that mirror Phases 1-4 (with identical hydraulics and capacities), the following report is based on analysis of Phases 1-4 only. The ultimate flow rate for Phase 4 is 24 m /sec at Phase 8.

SA Water is responsible for operation and maintenance of an extensive network of buried pipelines. Cathodic Protection (CP) is applied to a large proportion of those buried assets which assists with the management of external pipeline corrosion and is therefore and an important asset management tool to greatly increase asset life. This Standard has been developed to assist in the design, maintenance, construction, and management of SA Water’s pipeline CP infrastructure. The purpose of this Standard is to detail the requirements for each phase of a pipeline CP project from design, construction and commissioning, to maintenance and monitoring to ensure a consistent approach is achieved independent of the delivery model of a project, its location, project ownership or other influences.

This course is about measurement of the flow rate of a fluid flowing under pressure in a closed conduit. The closed conduit is often circular, but also may be square or rectangular (such as a heating duct) or any other shape. The other major category of flow is open channel flow, which is the flow of a liquid with a free surface open to atmospheric pressure. Measurement of the flow rate of a fluid flowing under pressure, is carried out for a variety of purposes, such as billing for water supply to homes or businesses or, for monitoring or process control of a wide variety of industrial processes that involve flowing fluids. Several categories of pipe flow measurement devices will be described and discussed, including some associated calculations.