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Hydraulic Modelling and Calibration

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Hydraulic modeling is to design the behavior of your system (water, sewer or flood) hydraulically. It is very easy to plan infrastructure improvements as a result of hydraulic modeling, improve operational maintenance strategies and proactively manage your system.

Network Management in Drinking Water Lines consists of the following steps

1 – Network Analysis and Design (Hydraulic Modeling)

2 – Creating a Traceable and Sustainable Network

3 – Leak-leak detection and pressure management

4 – Training and Technical Support

1 – Network Analysis and Design (Hydraulic Modeling);

In order to construct a hydraulic model of a network, it is first necessary to digitize or quantify existing assets on the field. In order to do this, underground detection radars, cable-pipe detectors, metal detectors and fixing excavators are used.

Hydraulic model of the system needs to be created in order to be able to simulate the way the water is watched on the distribution network. In a system using a hydraulic model, it is possible to manage distribution network line, to prevent discharge and overflow problems at warehouse level, to make production and accrual analysis. In addition, hydraulic modeling software can help to manage the pressure of the system as well as to understand the water production and transmission costs as well as the electricity costs of the pumps.

To manage the system it is necessary to be able to monitor it, the most effective way to monitor the system is to separate the system into isolated sub-zones (DMA Zone). The creation of isolated subregions facilitates the analysis and management of the system. A complete isolation should be ensured by avoiding inter-regional transitions. It is possible to observe the region by creating measurement chambers at the entrance of each zone and at the critical points where we want the water to reach.

2 – Creating a Traceable and Sustainable Network;

Do field verification of measurable areas (DMA)
Identification of measurement points and creation of measurement rooms
Measuring field values
Model calibration

work should be done.

Limit valves are checked when the measurements of the measurable areas are verified. It is confirmed by zero pressure tests that there is complete isolation between the isolated subregions.

Determination of measurement points and formation of measurement chambers Designation of DMA and pressure chambers at which points are to be formed and chambers to be formed at designated points are designed. The flowmeter to be used in the chambers, the diameter and properties of the pressure regulating valves and the parameters of the data logger system and communication modules to be used in the chambers are determined. The design of the bypass line to be created is also included in this scope.

Measurements of field values ​​are made and reported with the help of the measurement chambers or with the flow measurement, pressure and chlorine measurements of the system using portable measuring instruments.

The model calibration is revised with the values ​​measured in the field, the new connections and valves are processed, and the current strategy is revised as a result of the calibration.

3 – Leakage-Leak Detection and Pressure Management;

Field research
Nighttime analysis
Early warning system (sound and noise recorders)
correlation
Spot leakage detection
Pressure management

Field surveys, experienced teams and advanced technology equipment and PTT and sewage manholes, which are possible routes of water leaking from the network, and water analyzes should be performed if leakage is detected at these controls. Valve and home connections are also included in this research.

The nighttime analysis should be close to zero between 2 am and 4 am in the morning when the consumption of water in a given area is not a different consumption habit. If the night time is close to daytime, there is a possibility of leaking or leaking to this area.

The early warning system is known as the sound and noise recorder system. It is a system that catches the leak or breakout sound in places near the specified points (valve, subscriber connections, etc.). It can provide data communication via local radio signal or GPRS. This system locally ensures that leak-free areas are narrowed and time is saved in later spot fixations. The data can be collected instantaneously as well as centralized.

Correlation is a system that is used to reduce the area where leaks occur in narrowed regions as a result of nightfall analysis, early warning system or field surveys. Sensors placed on the network determine the leakage point approximately as a result of communication with radio signals.

Pinpointing leakage detection is performed by listening to the acoustic listening microphones in areas that are collapsed or suspected to be correlated and spot leakage is detected

After the pressure management, the detected leaks and the repairs done, the system should be managed with optimum pressure so that the recycled water can stay in the system. High pressure causes outbreaks in network pipes and subscriber installations, while low pressure will cause dissatisfaction in subscriptions. Pressure profiles are formed by performing pressure measurements for 7 – 15 days in the regions determined according to the network condition. Thanks to the pressure profiles, the pressure regulating valves are integrated into the system. This ensures that the network operates at optimum pressure.

Calibration

Drinking water systems are created through a certain account and project when they are created. Over time, different potable water systems may have come together or added or added to the existing system.

Except these, your hydraulic model of your existing drinking water system may not reflect actual operating conditions due to wear, water losses, limiters in closed / open position over time.

We will calibrate your system’s Hydraulic Model with field observations and we can deliver your live Hydraulic model which reflects your business.

C-Factor test
Flow Measurement
Pressure Measurements
Consumption analysis
Zero Pressure test
Pump Efficiency Test