This paper suggests a stable design approach dedicated to the Takagi-Sugeno fuzzy controllers for the water-level control of a laboratory three-tank system. The design approach is based on a simplified application of LaSalle's global invariant set theorem. An original stability analysis theorem offers sufficient inequality-type stability conditions that enable the controller design and tuning. ...
Project Digital groundwater level measurement network Client Groot Salland Water Board Country The Netherlands Measuring groundwater levels then At the place where he carried out his first groundwater measurement 40 years ago, Sjaak Bruggeman, Measuring Groundwater employee, is enthusiastic about Groot Salland Water Board’s switch to a digital groundwater level measuring system. ...
Perth groundwater resources are obtained from three major aquifers that occur beneath the Perth metropolitan area: the Superficial aquifer, Leederville aquifer and Yarragadee aquifer. Each aquifer has a unique seasonal water level pattern controlled by soils, geomorphology and geology. Landuse is mainly responsible for variations in recharge; however, the hydraulic properties control aquifer ...
Perth groundwater resources are obtained from three major aquifers that occur beneath the Perth metropolitan area: the Superficial aquifer, Leederville aquifer and Yarragadee aquifer. Each aquifer has a unique seasonal water level pattern controlled by soils, geomorphology and geology. Landuse is mainly responsible for variations in recharge; however, the hydraulic properties control aquifer ...
When outside temperatures fall below freezing, water inevitably forms into ice. Open cooling towers can be susceptible to freezing due to their inherent nature of operation. As a result, ice formation becomes a subject of management, not elimination. Fortunately, there are alternative solutions. Closed circuit coolers are used for a multitude of niche applications, but are ideal for evaporative ...
Project name Water Level Measurement Network Polder Monitoring Areas Client Rijnland District Water Control Board Country The Netherlands Background and aim project Chris van Vliet (team leader of Sample Taking at HHRS of Rijnland) explains why this project was carried out: “The most important aim of the project was to provide more insight into the polder levels. Up-to-date ...
SmartScan25 provides an efficient solution for controlling water level of the Wardha river reservoir from a distance of 40m (131ft) thus preventing draughts and floods to the district of Amravati, India. Upper Wardha Dam is build up on the Wardha River at a height of 36m (118ft) and 7km (4.35mi) length and situated on the boundary of Amravati and Wardha Districts, India. Controlling the water ...
Pulsar Process Measurement have been involved in design, manufacture and supply of non-contacting Ultrasonic Level and Pump Control systems for the Internal Drainage Board industry for many years. Three typical examples of the application of this equipment are installed at North Level IDB Cross Guns Pumping Station. The original Cross Guns Pumping Station was built in 1938 to house three 760mm ...
We combine non-hydrostatic flow simulations of the free surface with a discharge model based on elementary gate flow equations for decision support in the operation of hydraulic structure gates. A water level-based gate control used in most of today's general practice does not take into account the fact that gate operation scenarios producing similar total discharged volumes and similar ...
In order to automatically and safely control long distance water delivery projects in winter, there is a need for a reasonable and feasible transition mode to avoid the emergence of ice jam. Based on open canal hydraulics, a mathematical model of canal system operated by constant downstream depth method is developed. The principle of combining feed-forward control of discharges with feedback ...
Flow regime change is the leading driving force in the evolution of lacustrine ecological systems. According to the planned water level regulation scheme of the Poyang Lake hydraulic project (PLHP), this research discusses the possible impacts of PLHP on the hydrology and hydrodynamics of Poyang Lake (China) using the method of scenario simulation. The results show that a controlled water ...
Pike's Hunting Club promises the finest duck hunting you will find anywhere - aided by planned water management and Crisafulli Pumps. At Pike's Hunting Club in Marion, IL, the creation and preservation of waterfowl habitat, coupled with water control, are essential elements in the Club's ability to provide the best possible waterfowl hunting experience. According to John Pike, one of the Club's ...
Pike's Hunting Club promises the finest duck hunting you will find anywhere - aided by planned water management and Crisafulli Pumps. At Pike's Hunting Club in Marion, IL, the creation and preservation of waterfowl habitat, coupled with water control, are essential elements in the Club's ability to provide the best possible waterfowl hunting experience. According to John Pike, one of the Club's ...
Cast iron pipes were installed broadly in North American water utilities, particularly in older cities such as Halifax, NS, and other cities in the northeastern portions of Canada and the USA. Many of these cast iron pipes are corroded and are continuous sources of Fe(II) ions in drinking water distribution systems. In this paper, the results of an experimental investigation into the factors ...
Boilers play a crucial role at industrial facilities and it is imperative that they be safely and properly maintained. Routine boiler maintenance can help prevent unplanned shutdowns and outages, increase the efficiency of the boiler and cut operating costs, and ensure that the facility is in full compliance with all laws and regulations governing boiler safety. What follows is a boiler ...
Their Challenge Butler County, which purchases water wholesale to provide drinking water to its population of 100,000, faced three problems. 1. Extreme pressure drops at a pressure reducing and metering facility, resulting in severe cavitation damage and extreme noise to two valves. 2. The inability to sequence the two valves. 3. The inability to accurately control levels in two remote storage ...
Solid provides a reliable and accurate solution for control of sea water level in one of New Zealand's bay reserves. Onehunga Bay Reserve in Auckland, New Zealand, provides its residents with both marine and land facilities. One of them is a recreational sea water pool that serves as a natural pool for swimming and water sports, and a private docking place for small yachts. The Problems ...
Lombard Street Retrofit – San Francisco, CA Retro-Coat™ (patent pending) was selected to mitigate vapor intrusion within a structure built in 1907 that had been impacted by both a former underground storage tank and a local dry cleaner. Indoor air samples taken prior to application showed chlorinated solvent-based PCE and TCE levels above the Regional Water Quality Control Board ...
Control valve solves flow control & pressure challenges Donnacona, Quebec, Canada, is an industrial town just west of Quebec City. The town’s water treatment plant was built in 1969 and has since undergone three major retrofits: new high-pressure pumps and an electrical upgrade in 1995; a filter bottoms change in 2000; and a river water intake upgrade in 2005. The plant includes ...
Blandford Consulting Godreaman, Wales Hydro-Logic was appointed in 2008 to undertake a Flood Consequence Assessment for a proposed residential development near Aberaman, on a site close to the River Aman that had previously been subject to dumping of soil and possibly waste from coal mining in the area. The services undertaken by Hydro-Logic included hydrological and hydraulic modelling, using ...