large hydraulic power Articles

  • Hydraulic modeling trends in 2003

    It is traditional as a New Year dawns to review the old year and draw some conclusions. Not to be left out, we asked a number of our industry experts to reflect on key developments in their area of specialism based on their observation of the activities and issues facing users around the world during 2003. We cover in turn each of our key areas – Collection Systems, Water Supply, River Systems, ...


    By Innovyze

  • Large-scale hydropower system optimization using dynamic programming and object-oriented programming: the case of the Northeast China Power Grid

    This paper examines long-term optimal operation using dynamic programming for a large hydropower system of 10 reservoirs in Northeast China. Besides considering flow and hydraulic head, the optimization explicitly includes time-varying electricity market prices to maximize benefit. Two techniques are used to reduce the ‘curse of dimensionality’ of dynamic programming with many ...


    By IWA Publishing

  • 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 ...

  • 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, ...

  • Harrison Ford’s Millennium Falcon Accident – Too much Force was awoken in a hydraulically powered door

    In June 2014 the actor was crushed underneath a hydraulically powered door with “the power…. comparable to the weight of a small car” according to a spokesman from the Health & Safety Executive (HSE). The company held responsible for the accident have now pleaded guilty to two health and safety breaches under the Health & Safety at Work Act 1974. The first breach is ...


    By SHEilds Ltd

  • Crisafulli trailer, vertical, and hydraulic submersible pumps.

    The Town uses the following Crisafulli equipment to solve its problem:  One (1) Crisafulli 12' Humpback Trailer Pump,  One (1) Crisafulli 16' Vertical PTO Pump, One (1) Crisafulli 16' Vertical Electric PTO Pump, Three (3) Crisafulli 16' Vertical Electric Pumps, One (1) Crisafulli 2-1/2' Hydraulic Submersible Pump, One (1) Crisafulli 16' Vertical Electric, 2001. PROJECT ...


    By SRS Crisafulli, Inc.

  • Large Diameter Impellers Make Trash Pumps More Versatile

    The introduction of these impellers allow for a higher range of discharge pressure. Pumps are available in many types—diaphragm, positive displacement and progressive cavity—but the most common is a centrifugal pump. Centrifugal pumps have an impeller that spins, transferring energy to the fluid by centrifugal force and directing the water to the discharge point within the ...


    By Griffin Dewatering

  • Using GIS to Build Hydraulic Models Faster

    The use of hydraulic models, already widespread, continues to grow rapidly.  Modeling is used increasingly all around the world to address planning and operational issues in water supply networks, collection systems, and river management. Much of this growth results from the rapid advances in the capabilities of the best of the hydraulic modeling software solutions, which constantly improve ...


    By Innovyze

  • New developments of vibratory feeders for large bulk material reclaim systems

    Summary The efficient economical storage, movement, control and blending of large tonnages at coal handling installations such as mines, power plants and port facilities require new and improved designs of vibratory equipment. Environmental and investment impact as well as operational advantages must be considered in the development of any new reclaim system. ...


    By General Kinematics

  • Comprehensive scale model for LMFBR reactor assembly thermal hydraulics

    The construction of the 500 MWe Prototype Fast Breeder Reactor (PFBR) is underway at Kalpakkam, India. This liquid sodium-cooled reactor is a pool-type reactor with two secondary loops. Experimental investigations have been carried out to understand the complex flow, temperature patterns and flow-induced vibration characteristics. To enhance the confidence in the design of the components immersed ...


    By Inderscience Publishers

  • Thermal–hydraulic modelling of LOCA accident using CONTAIN 2.0 code

    This paper has modelled one of the accidents in the Pressurised Water Reactor (PWR) reactor containment that is known as Loss of Coolant Accident (LOCA) in its worst condition that is called Large Break LOCA (LB LOCA) with the CONTAIN 2.0 code. Specific type of the LB LOCA is Double–Ended Cold Leg (DECL) break that means guillotine break in the cold leg pipe. The coolant is lost when a LOCA ...


    By Inderscience Publishers

  • Optimizing water management in hydraulic fracturing for shale oil and gas production

    Centralized treatment of wastewater is emerging as a viable solution for long-term efficiency in managing water sourcing and wastewater treatment in hydraulic fracturing. The number of hydraulic fracturing (fracking) shale oil and gas wells in the United States continues to increase. Within the Bakken Shale formation alone, in North Dakota and Montana, upwards of 15,000 hydraulic fracturing ...


    By WesTech Engineering, Inc.

  • Optimizing Water Management in Hydraulic Fracturing for Shale Oil and Gas Production

    Centralized treatment of wastewater is emerging as a viable solution for long-term efficiency in managing water sourcing and wastewater treatment in hydraulic fracturing. The number of hydraulic fracturing (fracking) shale oil and gas wells in the United States continues to increase. Within the Bakken Shale formation alone, in North Dakota and Montana, upwards of 15,000 hydraulic fracturing ...


    By WesTech Engineering, Inc.

  • Hydraulic Dredging: A cost effective solution for most dredging tasks

    The vast majority of dredging jobs require removal of solids to depths of 30 feet or less. Several features enable hydraulic dredges to be the solution of choice for these applications. First, what are hydraulic dredges and how do they compare with alternative mechanical dredge types? Hydraulic dredges create slurries, combinations of solids and water, pump the slurries to the ...


    By SRS Crisafulli, Inc.

  • Mine Restores Basin Capacity with Hydraulic Dredge Case Study

    SRS Crisafulli introduces the Rotomite model 6000-CD Dredge SRS Crisafulli designed and built the self-propelled, steerable, diesel powered all-purpose dredge for both abrasive and soft slurries with a cast alloy pump, and 8” discharge, in the fall of 2013. The dredge was tested at Fisher Sand and Gravel’s pond on Circle Highway northwest of the Company’s Glendive, ...


    By SRS Crisafulli, Inc.

  • Crisafulli vertical, trailer, and hydraulic submersible pump case history storm water management-case study

    Crisafulli Trailer, Vertical, and Hydraulic Submersible Pumps. Excerpts from a 1997 report submitted by Jeffrey A. Simpson, Marshall-Bond, Inc. Regarding a STORM WATER MANAGEMENT CASE STUDY for the Winnetka, Illinois Department of Public Works. The Town uses the following Crisafulli equipment to solve its problem: One Crisafulli 12" Humpback Trailer Pump ...


    By SRS Crisafulli, Inc.

  • Crisafulli vertical, trailer, and hydraulic submersible pump case history storm water management-case study

    Crisafulli Trailer, Vertical, and Hydraulic Submersible Pumps.  Excerpts from a 1997 report submitted by Jeffrey A. Simpson, Marshall-Bond, Inc. Regarding a STORM WATER MANAGEMENT CASE STUDY for the Winnetka, Illinois Department of Public Works. The Town uses the following Crisafulli equipment to solve its problem: One Crisafulli 12" Humpback Trailer ...


    By SRS Crisafulli, Inc.

  • Sea Power 101: Notable Case Studies

    Russian Air Force Base, Eastern Germany: Land underneath this site had become contaminated over a long period of time by a mixture of lubricant oils, hydraulic fluids and aviation fuel. Following excavation, the soil was reconstituted in biopiles and applied with Sea Power 101. The vast majority of hydrocarbons were removed in the first month, and the site was fully remediated within four ...


    By Sea-Chem Limited

  • Water network sectorization based on a genetic algorithm and minimum dissipated power paths

    Water Network Sectorization (WNS) consists of dividing a water system into sectors with an independent water supply. When each district is supplied by its only water source the districts can be defined as i-DMAs (isolated District Meter Areas) because they are completely cut off from the rest of the water network. This isolation of the i-DMAs may decrease hydraulic performance of the water ...


    By IWA Publishing

  • GE Leakwise Application Notes: Oil Detection in Hydro-Electric Power Plants

    Leakwise* Oil Detection in Water Collection Sump Under Turbines Water carries oil leakage from turbine bearings and other leaking sources into a large sump, which is built under the turbines. In most plants, pumps installed at the bottom of the sump discharge the water directly to the river.  A Leakwise lD-221 Floating Oil Detector is installed in a perforated 6” stilling well. The ...


    By GE Analytical Instruments

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