Water Simulation

ֲ From maplecroft: A new report evaluating the water security of 165 countries has rated the supply of clean, fresh water to the societies and businesses of 10 nations at “extreme risk.” I don’t have access to the full report so I have not read it yet. If you have a copy and can shareֲ it with [...]

During the summer of 2009 a large number of water pipe breaks occurred in Los Angeles. Apparently,ֲ  there were 101 blowouts in the summer of 2009 (July, August and September) compared to 42 in 2008, 49 in 2007 and 48 in 2006. As a consequence of the public request for an explanation an independent investigation [...]

Following the Battle of the Water Networks (BWN) in 1985 and more recently the Battle of the Water Sensor Networks (BWSN) I’m happy to announce the Battle of the Water Calibration Networks (BWCN): The BWCN calls for teams/individuals from academia, consulting firms, and utilities to propose a calibration methodology and apply it to a real [...]

A History of Water Distribution: Bentley’s Tom Walski takes you back in time to learn how water distribution technology has evolved to provide us with clean and sufficient water today. As published in Journal AWWA, Vol. 98, No. 3 (March 2006). American Water Works Association Full paper

EPA has released a new tool for small water utilities trying to balance the demands for quality water with their financial ability to deliver. The tool is part of an overall program to protect public health, support small water systems and keep costs of water manageable. The targeted systems serve 3,300 customers or fewer. The [...]

With pumping systems accounting for about 20% of the world’s energy usage, a great potential for cost and energy savings exists within such systems. Unfortunately, pumping system design engineers work in an environment where budget and schedule constraints limit their ability to optimize their systems using traditional methods. “Optimizing Pumping Systems To Minimize First Or [...]

An article by the Safe Drinking Water Trust: Distribution system flushing programs have been around for a long, long time. In a nutshell, these programs provide systems with an organized way to clean out the rust and other sediments that have settled in the water lines over the years. Whether water system crews simply crack [...]

The Human-Competitive Awards, the ג€œHumiesג€, are awarded to techniques of genetic and evolutionary computation that are competitive with the work of creative and inventive humans. The Darwin Designer team, from Haestad Methods, won an honorable mention this year for their water distribution design genetic algorithm solver. The method is presented in ג€œOPTIMIZING WATER SYSTEM IMPROVEMENT [...]

Here is a message from Dr. Avi Ostfeld: Dear Colleagues, On May 26, 2005 I have issued a call to this list on a “Battle of the Sensors” exercise as part of the planned Special Issue of the Journal of Water Resources Planning and Management on Drinking Water Distribution Systems Security. Since than I have [...]

Derceto, Inc. were one of the exhibitors at the AWWA Annual Conference (ACE05) in San Francisco in June. The company released an article titled: “Implementing an Energy Management System for Distribution Pumping“. Here are a few words taken from the publication just to get you started: The system generates an optimized pump schedule solution for [...]