Experimental and computational fluid dynamics investigation on the performance of leakage sensor model
Water is an extremely important natural resource and fresh water management need to be handled in a systematic and efficient way so that fresh water supply always sufficient for the ever-growing population. In the Arabian Gulf, the scarcity of fresh water causes the authority to use the desalina...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
2021
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/103973/1/TURKI%20S%20A%20H%20AL-QAHTANI%20-%20IR.pdf |
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| Summary: | Water is an extremely important natural resource and fresh water
management need to be handled in a systematic and efficient way so that
fresh water supply always sufficient for the ever-growing population. In the
Arabian Gulf, the scarcity of fresh water causes the authority to use the
desalination technology to convert the salt water into water that suitable for
the human consumption. This technology comes with a high cost and it is
important to detect pipe leakage to avoid wastage of the water. Hence, the
current work aim is to propose a new leakage detector shape and analyse
the performance using CFD simulation and an experimental work. Mobility
module of Design 4 has been designed and developed base on the
aerodynamics performance of the earlier design mobility module. The
design hydrodynamics performance also been investigated via experimental
work and it has a preferable performance when simulated in the real pipe
condition to detect leakage in the pipeline. Design optimization has been
carried out to further improve the performance of the mobility module to be
working in the real pipe condition. The basic shape is fixed as the same as
the mobility module that has been chosen in the previous comparison. The
design hydrodynamics performance also been investigated via CFD
simulation. Data from simulation analysis has shown that the determination
of domain locations affected the numerical calculation results. Identification
of mesh size and mesh type will produce accurate results such as
implementation of refining mesh focusing on potential turbulent flow area
will obtain more smoothness results. The selection of a proper turbulent
model also will influent the result. Finally, the design performance been
assessed via parametric study. The parametric study shows the effects of
upstream velocity and model design on the variation of drag force. Based
on the comparisons between the results obtained through numerical
analysis, it can be concluded that the drag force of leakage sensor increases
direct proportionally with the upstream flow velocity. There is no significant
different between modified design 1 and design 2 in the simulation
procedure but both results are 3 times higher than original best design which
is 300% improvement from experimental procedure in all upstream velocity. |
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