Modeling of High Pressure Loss (Head Loss) in a Flow Measurement Unit with Various Pipe Network Manifold Openings

Head Loss Water Measurement Unit Various valve opening

Authors

  • Djoni Irianto Department of Civil Engineering, Faculty of Engineering, Universitas Negeri Surabaya, Ketintang, Surabaya, 60231, Indonesia.
November 17, 2023
January 31, 2024

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The head loss in water flowing through pipes often turns out to be different from what we assume,
which is the occurrence of incompressible flow. However, this assumption is not always true
because the flow pattern inside the pipe is not visible and can only be measured with precise
equipment. The presence of water in the pipes can only be tested on a clear scale, especially when
it is part of the network within a multi-story building. Determining the need for a pipe network
within a building is not an easy calculation due to differences in length, diameter, and bends.
Hydraulic experts often overlook these differences, which can become a problem when clogs occur
during the flow process.
To find a solution to this problem, it is necessary to conduct tests using a device called a Water
Measurement Unit. This is rarely done in laboratories. Testing the water pressure with this device
requires various instruments and a variety of valve openings supplied with pressurized water by a
pump at a certain capacity. To analyze the flow rates resulting from the tests with different valve
openings, researchers test and measure the flow rate capacity for each opening, starting with
openings of 0.5, 0.75, 1.00, and so on. They read the instrument, move the copper from one height
to another, and create a graph of the test results in the form of a pair of connectors. The researchers
test the device and its openings three times for each opening, recording and mapping the pressure
values and the time it takes on the measuring instrument.
Subsequently, the results of the pressure test (Head Loss) are recommended to provide information
to water pipe installation planners that the test results with various valve openings under certain
conditions have different pressure values and travel times. It turns out that in the placement of hose
or copper number 2, stability is observed with pressure, and there is no significant differential
pressure increase. In the experiment with hose or copper number 2, it can be said that everything
is stable enough to conclude that there is no head loss, and it is recommended to be safe for
modeling.