Water Simulation Packages (WSP)

Managing Ground-Water Systems
May 22-24, 2006

The MODFLOW conference series has become a tradition for the presentation of cutting-edge practical application of ground water models in all aspects of hydrologic work. MODFLOW, the USGS modular three-dimensional finite-difference, ground-water flow model, has become an international standard for ground-water modeling. MODFLOW serves as a centerpiece for the recurring conference, but we anchor on MODFLOW only because of its widespread use and its status as a community model. The conference organizing committee needs and encourages participation by users of all types of models in all kinds of applications, including those for which MODFLOW is not suitable, so that the modeling capability of our profession will evolve. MODFLOW is a basis from which other models can be considered. The advantages and disadvantages of alternative codes can be reflected from MODFLOW with which nearly all modelers are familiar.

For more details click here.

Process Energy Services is pleased to introduce PUMP & SYSTEMS “BASIC” AND “PRO”, the new software tools created to assist facility operators and engineers optimize existing and new pump systems to improve efficiency and reduce energy costs.

The PUMP & SYSTEMS software tools are designed to take the mystery out of centrifugal pump systems, and help identify opportunities to improve pump efficiency and reduce costs. This program is ideal for modeling water and wastewater pumps, cooling and chilled water system pumps, and process pump systems.

The benefits of PUMP & SYSTEMS software includes:

• The ability to model an existing pump by inputting pump curve data specifically for the pump being reviewed.
• Allows the user to evaluate the efficiency of multiple pumps operated in parallel
• Provides energy cost comparison for operating a pump at full speed or reduced speed with a VSD
• Evaluates the energy cost impact of the following system changes:
  • Pipe size
  • Pipe length
  • System age
  • Tank levels
  • Fluid temperature
  • Motor efficiency
  • Energy Cost
  • Type of variable speed drive
• Easy to use pull down menus that allow the user to enter information for pipe sizes, valve types, tank elevations (or static head), motor efficiency, cost of electricity and other parameters to evaluate pump system energy costs.
• A visual representation of the pump, piping and tank system, a simulated pump curve, and a detailed efficiency comparison list for operating the pump as a fixed speed or variable speed pump (Basic).
• The ability to model fixed or variable speed multiple pumps operating in parallel to determine system head and flow output as well as the optimum speed and number of pumps to operate the system as efficiently as possible (Pro).

For more information see PUMP & SYSTEMS web page.

MIDUSS is Windows-based software that helps you to engineer complex drainage networks to convey flow hydrographs from single event storms. MIDUSS lets you:

• generate hydrographs using a variety of built-in hydrologic models
• design a network of pipes, channels, culverts, ponds, infiltration trenches, cascading pipes, diversions - all with preliminary sizing done automatically and flood routing where appropriate
• use interactive design and immediate feedback to quickly optimize each element as you progress downstream
• use automatic mode to analyze and adjust your completed design under more severe storms
• concentrate on engineering; robust error detection and step-by-step prompts are provided throughout
• import/export hyetographs or hydrographs at virtually any stage
• feel good about your investment: we offer competitive software pricing and on-going updates and support
• get going fast with detailed Reference and Tutorial manuals as well as free audio-visual lessons
• feel assured we know what we’re doing - MIDUSS is 20 years on the market and still going strong

For more information see MIDUSS web site.

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 open a few fire hydrants around town or have spent a great deal of time devising an in-depth unidirectional flushing program (UFP), it’s a sure bet that if your system hasn’t been flushed for awhile your water quality will suffer. If this is the case, then there is no time like the present to take a closer look at your distribution system’s preventative maintenance program before you receive a phone call like:

Read the full article here.