Designation and evaluation of enclosed gravitational water vortex turbine (GWVT) at horizontal orientation for micro hydropower generation / Muhammad Qamaran Abdul Aziz

A sustainable electricity power supply is crucial, especially for a small population in a rural area. Micro hydropower generation in rural areas is important to ensure electricity can be provided, especially in off-grid areas. This study aims to predict power produced from conical gravitational wate...

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Main Author:	Abdul Aziz, Muhammad Qamaran
Format:	Thesis
Language:	English
Published:	2022
Subjects:	Technical hydraulics Hydraulic machinery
Online Access:	https://ir.uitm.edu.my/id/eprint/76461/1/76461.pdf
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spelling	my-uitm-ir.764612023-05-26T04:13:58Z Designation and evaluation of enclosed gravitational water vortex turbine (GWVT) at horizontal orientation for micro hydropower generation / Muhammad Qamaran Abdul Aziz 2022 Abdul Aziz, Muhammad Qamaran Technical hydraulics Hydraulic machinery A sustainable electricity power supply is crucial, especially for a small population in a rural area. Micro hydropower generation in rural areas is important to ensure electricity can be provided, especially in off-grid areas. This study aims to predict power produced from conical gravitational water vortex turbine (GWVT) via horizontal orientation. Thus simulations were carried out before and after the actual turbine experiment to ensure the validity of the results produced for power output predictions through mathematical modelling. This study's conical GWVT was designed in a fully enclosed system with a conical turbine casing. During the simulation phase by using SOLIDWORKS Flow Simulation, two different turbine orientations were simulated, i.e. vertical and horizontal at different blade angles design (25°, 45°, 75°, 90°, and 120°), and with a different number of blades, i.e. 8, 12, and 18, while forces were harnessed as the selection criteria to find the optimum turbine setting. The optimized setting from the simulations was adapted for actual fabrication. The turbine underwent various flow rate tests, i.e. 0.0053 m3 /s, 0.006 m3 /s, 0.0063 m3 /s, and 0.00645 m3 /s, and loading conditions, i.e. 1kg increment until the shaft completely stop turning to obtain its performance curve. Then, validation of actual experimental results was done through simulation using MRF method in SOLIDWORKS Flow Simulation. The outcome of the actual turbine experiment was then modeled through multiple linear regression using the Minitab software. The simulation results showed that it was possible to run and produce force from horizontal conical GWVT designed in a fully enclosed system. It was found that vertical turbine orientation produced slightly higher force than horizontal orientation using runner blade of 90° angle and 12 blades where the distributed forces were 15.31 N and 14.12 N, respectively, at tangential (z-axis) direction. The maximum power produced was 69.39 W, while efficiency of the turbine was calculated at maximum 16.06% which was achieved at angular velocity of 12.71 rad/s and torque of 5.47 N.m. For validation of actual turbine experiment and simulation, results shown that the simulation can produce accurate torque predictions at higher angular velocity settings i.e. 15–30 rad/s within +1 N.m discrepancies from actual turbine results but under prediction occurs at low angular velocity settings i.e. 0-15 rad/s within -6.1 N.m discrepancies. The regression equation P=89.9+7.32X1+24.25X2-11.23X3 achieved R 2 of 55.36% and overall power output prediction accuracy of 73.43%. The results are helpful to predict the performance of conical GWVT, prior to actual implementation 2022 Thesis https://ir.uitm.edu.my/id/eprint/76461/ https://ir.uitm.edu.my/id/eprint/76461/1/76461.pdf text en public masters Universiti Teknologi MARA (UiTM) College of Engineering Idris, Juferi
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Idris, Juferi
topic	Technical hydraulics Hydraulic machinery
spellingShingle	Technical hydraulics Hydraulic machinery Abdul Aziz, Muhammad Qamaran Designation and evaluation of enclosed gravitational water vortex turbine (GWVT) at horizontal orientation for micro hydropower generation / Muhammad Qamaran Abdul Aziz
description	A sustainable electricity power supply is crucial, especially for a small population in a rural area. Micro hydropower generation in rural areas is important to ensure electricity can be provided, especially in off-grid areas. This study aims to predict power produced from conical gravitational water vortex turbine (GWVT) via horizontal orientation. Thus simulations were carried out before and after the actual turbine experiment to ensure the validity of the results produced for power output predictions through mathematical modelling. This study's conical GWVT was designed in a fully enclosed system with a conical turbine casing. During the simulation phase by using SOLIDWORKS Flow Simulation, two different turbine orientations were simulated, i.e. vertical and horizontal at different blade angles design (25°, 45°, 75°, 90°, and 120°), and with a different number of blades, i.e. 8, 12, and 18, while forces were harnessed as the selection criteria to find the optimum turbine setting. The optimized setting from the simulations was adapted for actual fabrication. The turbine underwent various flow rate tests, i.e. 0.0053 m3 /s, 0.006 m3 /s, 0.0063 m3 /s, and 0.00645 m3 /s, and loading conditions, i.e. 1kg increment until the shaft completely stop turning to obtain its performance curve. Then, validation of actual experimental results was done through simulation using MRF method in SOLIDWORKS Flow Simulation. The outcome of the actual turbine experiment was then modeled through multiple linear regression using the Minitab software. The simulation results showed that it was possible to run and produce force from horizontal conical GWVT designed in a fully enclosed system. It was found that vertical turbine orientation produced slightly higher force than horizontal orientation using runner blade of 90° angle and 12 blades where the distributed forces were 15.31 N and 14.12 N, respectively, at tangential (z-axis) direction. The maximum power produced was 69.39 W, while efficiency of the turbine was calculated at maximum 16.06% which was achieved at angular velocity of 12.71 rad/s and torque of 5.47 N.m. For validation of actual turbine experiment and simulation, results shown that the simulation can produce accurate torque predictions at higher angular velocity settings i.e. 15–30 rad/s within +1 N.m discrepancies from actual turbine results but under prediction occurs at low angular velocity settings i.e. 0-15 rad/s within -6.1 N.m discrepancies. The regression equation P=89.9+7.32X1+24.25X2-11.23X3 achieved R 2 of 55.36% and overall power output prediction accuracy of 73.43%. The results are helpful to predict the performance of conical GWVT, prior to actual implementation
format	Thesis
qualification_level	Master's degree
author	Abdul Aziz, Muhammad Qamaran
author_facet	Abdul Aziz, Muhammad Qamaran
author_sort	Abdul Aziz, Muhammad Qamaran
title	Designation and evaluation of enclosed gravitational water vortex turbine (GWVT) at horizontal orientation for micro hydropower generation / Muhammad Qamaran Abdul Aziz
title_short	Designation and evaluation of enclosed gravitational water vortex turbine (GWVT) at horizontal orientation for micro hydropower generation / Muhammad Qamaran Abdul Aziz
title_full	Designation and evaluation of enclosed gravitational water vortex turbine (GWVT) at horizontal orientation for micro hydropower generation / Muhammad Qamaran Abdul Aziz
title_fullStr	Designation and evaluation of enclosed gravitational water vortex turbine (GWVT) at horizontal orientation for micro hydropower generation / Muhammad Qamaran Abdul Aziz
title_full_unstemmed	Designation and evaluation of enclosed gravitational water vortex turbine (GWVT) at horizontal orientation for micro hydropower generation / Muhammad Qamaran Abdul Aziz
title_sort	designation and evaluation of enclosed gravitational water vortex turbine (gwvt) at horizontal orientation for micro hydropower generation / muhammad qamaran abdul aziz
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	College of Engineering
publishDate	2022
url	https://ir.uitm.edu.my/id/eprint/76461/1/76461.pdf
_version_	1783736104572157952

Designation and evaluation of enclosed gravitational water vortex turbine (GWVT) at horizontal orientation for micro hydropower generation / Muhammad Qamaran Abdul Aziz

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