Portion of the Thabazimbi model during the analysis processAquanet, the water network analysis program supplied by Allyson Lawless, has recently been extended to allow modelling over a 52-week cycle. This means that a daily demand pattern per 15 min increments, a weekly demand pattern by day and an annual demand pattern by week may be entered into the demand pattern menu.Aquanet is a highly interactive graphics design application running stand-alone or on Civil Designer and AutoCAD 2000 using Microsoft Access for storing the data. The application allows for time simulation, taking daily demand patterns as well as seasonal peak factors into account. When up and running, the true consumption will be compared to the theoretical model by means of linking the design and financial databases containing field readings. This will allow refining of the theoretical model for picking up possible bursts or problem areas at a glance. This ability to link databases to the network model allows for GIS type reporting and will be used as a management tool.Aquanet boasts various methods of creating a network, eg DXF import, ASCII file import, other software file imports as well as the ability of calling up background bitmaps or DXF drawings.
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Using the friendly graphical interface to model the network within Aquanet, it also uses AutoCAD 3D faces or lines or 3D DXF DTM files from other software packages to interpolate ground elevations.The software uses the powerful and tightly integrated functions of Civil Designer to load Allycad, AutoCAD and Caddie drawings, large raster images and DTMs. This allows all services to be modelled on one DTM creating one drawing showing all services, allowing clashes to be detected between services. Aquanet uses the fast and easy to use CAD functions to import the layout and whatever intelligence available on the drawing such as draw-offs, levels, diameters, etc. The positions of valves, pump stations and reservoirs may also be established from the symbols on the CAD layouts.On-screen graphic functions allow the user to generate pipes, nodes, pump stations, valves, reservoirs, pressure release chambers, insert nodes, join pipes, insert bends, make connections, or delete pipes, nodes and fittings. When the pipe geometry has been defined, attributes may be assigned using various methods. A comprehensive range of pipe materials, valve and pump curve tables are available for selection.During the analysis, pumps and valves may be seen kicking in or switching off depending on pressure, flow or level conditions, and time controls.
Reservoirs filling and emptying are also very clearly presented graphically during the simulation process. Colour graphics of the head losses, pressures, flows, pipe sizes are produced to assist with decision making on an optimal solution.The Aquanet product is being developed further to cover the whole workflow in water management. Future developments will include a costing module, telemetry data links, optimisation module, and more. Road, sewer, stormwater or water design will be done simply by switching between modules that run within one interface.With these ongoing developments and future plans, Aquanet is becoming an indispensable tool for water networks modelling, design and maintenance.
Being a local product, data adaptations to the local market demands are assured.Allyson Lawless(011) 476 4100. Further reading:August 2019, SICK Automation Southern Africa, Analytical Instrumentation & Environmental MonitoringAs of 1 June 2019, the Carbon Tax Act, 2018, is in operation. South Africa is one of the worst polluters on the continent and the carbon tax is a milestone in government’s efforts to tackle climate change.August 2019, Analytical Instrumentation & Environmental MonitoringAccurate emissions monitoring from industrial processes is critical for determining overall system combustion efficiency, environmental compliance and safety.
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However, there is no ‘one-size-fits-all’.July 2019, GHM Messtechnik SA, Analytical Instrumentation & Environmental MonitoringThe influence of meteorology is significant on every human activity in modern life.July 2019, Microsep, Analytical Instrumentation & Environmental MonitoringEfficient and reliable monitoring of low concentrations of various impurities in pure water treatment is critical for microelectronics and power cycle chemistry applications. Mettler Toledo Thornton offers.July 2019, Endress+Hauser, Analytical Instrumentation & Environmental MonitoringThe water and wastewater industry oversees one of the world’s most important resources. This calls for continuous investments in infrastructure and new technologies. When viewed from outer space, the.July 2019, EOH Process Automation Solutions, Analytical Instrumentation & Environmental MonitoringFoxboro has announced the expansion of its Smart pH product family. The enhanced Model 876PH-S transmitter, along with recently released Smart PH10 and PH12Smart pH Sensors, now provide smart pH measurement.July 2019, ifm - South Africa, Analytical Instrumentation & Environmental MonitoringThis new thermal compressed air meter for compressed air in industrial use distinguishes itself as an all-rounder. It not only has an integrated temperature sensor, but also features a pressure sensor.May 2019, Yokogawa South Africa, Analytical Instrumentation & Environmental MonitoringThis risk has led the refiners to give more than the norms specify, resulting in a giveaway on quality and profit. The use of near infrared (NIR) technology has helped refiners get real-time data to ensure.May 2019, Morton Controls, Analytical Instrumentation & Environmental MonitoringOne of the most important processes in the pulp and paper industry is the alkaline sulphate process, where lignin is separated from the fibrous material.
Recycling of the chemicals used is vital for environmental.Africa Automation Fair 2019 Preview, Analytical Instrumentation & Environmental MonitoringRTS Africa Technologies is exhibiting LaserGas gas monitors from Neo Monitors.These are ideal for accurate measurement of specific components in gas mixtures such as flue gases. The NEO LaserGas monitor.