hydraulic power engineering Articles

  • High depth dredging

    In the dredging market, there is a new emerging trend: deep sea and high depth dredging and exploration. Deep sea exploration represents both a development possibility, and a huge technical challenge, where critical hyperbaric conditions, remote control and maintenance amends play an important role. ...


    By Dragflow S.r.l.

  • Rerating Pipeline Pumps

    Pipeline operators transport billions of gallons of oil every year, and they are constantly looking at ways of improving efficiency and reducing costs. Depending on changing network demands, this might require managing an increase or decrease in flow rate in the pipeline, a change in pressure, or a pump upgrade to more efficient technology. Throughout the life of a pipeline, the process ...


    By Sulzer Management Ltd

  • TenCate Geotube technology for dewatering - case study

    TenCate Geotube technology is used to protect coastlines, restore beaches, reclaim land and to store and filter polluted water. TenCate Geotube is a strong, sustainable method and a cost effective alternative to traditional hydraulic engineering constructions. The technology has already been used worldwide in more than 2,000 projects. These have involved for example the recovery of coastline, ...

  • CFD predicitons in large mechanically aerated lagoons

     ABSTRACT Optimization of the design and operation of large (>500,000 m3) mechanically aerated wastewater treatment lagoons (known as Aerated Stabilization Basins or ASBs) requires a thorough understanding of both the hydraulic and biological processes within the treatment volume. Complex three-dimensional flows existing within these lagoons are difficult to quantify by measurement ...

  • Validation of the STRIVE model for coupling ecological processes and surface water flow

    The 1D model package STRIVE is verified for simulating the interaction between ecological processes and surface water flow. The model is general and can be adapted and further developed according to the research question. The hydraulic module, based on the Saint-Venant equations, is the core part. The presence of macrophytes influences the water quality and the discharge due to the flow ...


    By IWA Publishing

  • Problem Solving with InfoNet 8: Linking InfoNet to modeling software

    Untitled Document The previous articles in this series of InfoNet Problem Solvers have discussed using InfoNet as a water company's asset ...


    By Innovyze

  • Applications of Shenyang Hermos CNC machine

    Shengyang Hermos CNC machine manufacturer is popular on home and overseas markets. Shengyang Hermos CNC machine is producing cnc internal grinding machine, cnc surface grinding machine,cnc hard turning machine,and cnc hard lathe machine which are used in various industries.   ...

  • Need A Dredge For A Small, Difficult Application?

    SRS Crisafulli’s new shallow draft dredge, the Rotomite SD110, enables operators to dredge in small, shallow, confined areas in a minimum of 17 inches of water. This compact, self-propelled, steerable  machine can dredge just about anywhere without the use of cumbersome cabling. The SD110 is made entirely of aluminum, and is equipped with a hydraulic ram that puts a great amount ...


    By SRS Crisafulli, Inc.

  • Snoqualmie falls riverbank stabilization case study

    Puget Sound Energy - Snoqualmie Falls Redevelopment Project In 2009, PugetSound Energy began a comprehensive upgrade of the hydroelectric infrastructure at Snoqualmie Falls - a power generation facility built in 1890. Loose soils and heavy rainfall contributed to a landslide along the Snoqualmie River bank in the Fall of 2010, and GeoEngineers was commissioned to provide a long-term design ...

  • 4 Key Design Criteria for Jet Mixers

    Jet mixers are widely used in both municipal and industrial wastewater treatment facilities to blend the plant influent and suspend light organic solids in circular equalization tanks.  Other applications for these powerful hydraulic mixers include mixing anoxic tanks and anaerobic reactors with the latter application being for industrial waste streams only. Jet ...


    By KLa Systems, Inc.

  • CFD predicitons in large mechanically aerated lagoons

    Optimization of the design and operation of large (>500,000 m3) mechanically aerated wastewater treatment lagoons (known as Aerated Stabilization Basins or ASBs) requires a thorough understanding of both the hydraulic and biological processes within the treatment volume. Complex three-dimensional flows existing within these lagoons are difficult to quantify by measurement or simplified analyses, ...

  • Utilizing unconventional water sources for industrial reuse

    Reclamation and reuse of unconventional wastewater sources for plant raw water, cooling water and process pre-treatment has increased substantially due to increases in the cost of drinking water, recurring water shortages that can impact business operations, and tightening government regulation. Water is required in almost every industrial sector for the processing and manufacture of products. ...


    By WesTech Engineering, Inc.

  • Dredging Short Courses

    By Eric Lillberg, SRS Crisafulli Senior Applications Engineer When I first started as an applications engineer for SRS Crisafulli, I searched for information on the subject of dredging. I was surprised to find there was very little non-commercial content available. I have since found a pair of short courses, offered annually by Texas ...


    By SRS Crisafulli, Inc.

  • Divers install eccentric plug valve in reservoir tunnel

    A team of specialist divers – working in a cramped, water-filled tunnel 20 metres beneath the surface of a reservoir – has just completed installation of an eccentric plug valve to control water flow.The valve and associated equipment has been supplied to United Utilities by Viking Johnson (http://www.vikingjohnson.com), a world leader in the supply of pipe joints ...


    By Viking Johnson

  • Rotomite 180-P application - dredging benzyne at 12 foot depth-case study

    Marshall-Bond Pumps, Jeffrey A. Simpson, New London WA; 630-978-7867, Fx 630-978-7872, Marbond7@hotmail.com DREDGING CASE STUDY, Project Location: Northern Illinois, Dates: April-November 1992, 1993 Equipment Used: Crisafulli-Rotomite 180-P Self-Propelled Dredge PROJECT DESCRIPTION: To dredge benzyne from the bottom of a 12 foot basin ...


    By SRS Crisafulli, Inc.

  • Rotomite 180 application - dredging benzyne at 12 foot dept.

    Project Location: Northern Illinois, Dates: April-November 1992, 1993 Equipment Used: Crisafulli Rotomite 180P Self Propelled Dredge PROJECT DESCRIPTION: To dredge benzyne from the bottom of a 12 foot basin approximately 1,000 feet long and 500 feet wide and discharge it into the water column so biologic treatment (BUGS) could work. Once the basin ...


    By SRS Crisafulli, Inc.

  • Dragflow, environmental-proof technologies. Beyond business for love of the Earth.

    Dragflow chooses to soften the environmental impact with advanced technologies for dredging optimization and naturalistic protection. High performances imply  a specific attention towards ecosystems where the operations are carried, since they often are fragile and easy to jeopardize. That’s why Dragflow conceived technical solutions like the anti-turbidity bell: designed to preserve ...


    By Dragflow S.r.l.

  • ENEL launches a new LWT automated PLC controlled dredge in Guatemala

    Enel Latin America asked Liquid Waste Technology, LLC to design a LWT Pit Hog dredge equipped to excavate the main pond’s sediment from the Santa Maria River automatically. Enel Latin America needed a solution for removal of sediment accumulating in the power generation water supply at its Greenfield El Canada Power Plant in western Guatemala at Zunil. Enel Latin America asked Liquid Waste ...

  • Water Modelling over the Last 25 Years

    When reviewing the last 25 years of water modelling, there are two conclusions that are equally appealing. One is that all the building blocks for mathematical hydraulic modelling were in place 25 years ago except for computing, and so the recent history of all computer-based mathematical modelling is essentially the recent history of computing. The second view is that, in parallel with some ...


    By Innovyze

  • Case study - Dallas Water Utilities - Leak Detection

    Service: Sahara Leak Detection Client: Dallas Water Utilities (DWU) Department of Public Works Type of Pipeline: Raw Water Transmission Main Diameter: 108-inch Pipe Material: PCCP Length: 7.3 miles The City of Dallas Water Utilities (DALW) currently draws its raw water from six sources: the Elm Fork of the Trinity River and Lakes Ray Roberts, Lewisville, Grapevine, Ray ...

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