Nanaimo Reservoir No.1 and energy recovery facility

Description:Nanaimo reservoir no.1 and energy recovery facility. Presenter: Lewis Macrae, P.Eng., Associated Engineering. The City of Nanaimo is embarking on a major water treatment upgrade program. This program will include the construction of a new water treatment plant and water storage reservoir. Due to the elevation difference between the water treatment plant and the distribution system, water entering the new reservoir has significant excess hydraulic pressure. The City has long recognized the potential for hydraulic energy recovery at the existing reservoir and as such was keen to incorporate energy recovery in the design of the new reservoir #1 facility. As the City’s lead engineer for the overall program of upgrades, Associated Engineering devised a concept whereby traditional function of reservoir control valves could be combined with the installation of hydraulic energy recovery equipment. This presentation will describe the typical requirements for hydraulic energy recovery systems and how these systems were integrated into the control philosophy for the City's new reservoir. The presentation will refer to the hydraulic analyses and feasibility exercises undertaken during the preliminary and detailed design phases of the project. Construction of the Energy Recovery Facility started in March 2013 and was commissioned in April 2014. The presentation will incorporate analysis of data obtained during the year of operation and will discuss potential operational modifications which may increase the energy capture and revenue potential of the facility.

Authors: Lewis Macrae

Subjects: Energy and Climate Change

Tags:2015 BCWWA Annual Conference & Trade Show,AC15,AC15 presentations

Citation:Stream 3: Resource Recovery

Publication Date:Mar 28th, 2015 Upload Date:Jun 25th, 2015

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