Larsen & Toubro’s $120,000 sustainable water transmission project in Chennai,
India, focused primarily on the need for energy conservation and savings. Based
on a hydraulic model developed for this residential project, the team tried
various approaches to filling up an underground water tank from multiple bore
holes, then optimizing the hydraulic model for the various parameters.
Using WaterGEMS to create the basic hydraulic model for the analysis,
the company conducted extended period simulations under various what-if
conditions, including an energy cost analysis. Without modifying the basic
optimized elements, the project team arrived at suitable operating conditions
for the pump, resulting in about a 10 percent extension of pump life. Using
WaterGEMS also achieved an estimated power savings of 9 percent.
Manila Water Company
Providing Water Amid Climate Change
Thirty kilometers southeast of Manila, Binangonan had provided 21 percent of
its population with potable water, which was available for less than half the
day. The network suffered up to 57 percent water loss, causing low pressure
throughout the service area. Manila Water Company improved efficiency and
reliability and extended service to the rest of the municipality.
The $3.96 million initiative involved developing a hydraulic model of the
existing water system using WaterGEMS. Based on the simulations, three
interconnected systems were built in phases. Reliability strategies developed
using WaterGEMS minimized the effect of 2009’s typhoon Ketsana so the
12,000 customers in the Phase 1 supply area had uninterrupted service. By
2012, 60,000 residents will have 24/7 water.