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All Journal Indonesian Journal of Science and Technology Asean Journal of Science and Engineering (AJSE) ASEAN Journal for Science and Engineering in Materials
Khechekhouche, Abderrahmane
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Modelling and Control of a Small Domestic Wind Turbine Cherif, Hakima; Khechekhouche, Abderrahmane; Maamir, Madiha; Aboub, Hania; Belgasim, Basim
ASEAN Journal of Science and Engineering Vol 3, No 2 (2023): AJSE: September 2023
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v3i1.44725

Abstract

A wind turbine is a machine that converts the kinetic energy of wind into mechanical energy like wind turbines. This mechanical wind power has been used through the ages to pump water or grind grain. Current machines are used to produce wind-type electricity which is consumed locally (isolated sites), or injected into the electricity network (wind turbines connected to the network). In this work, we are only interested in the modelling of a three-bladed horizontal axis wind turbine. All the models were developed by the Matlab/Simulink software, which makes it possible to set up fairly quickly models as well as the associated. The results revealed that the wind profile ranges between 6-7 (m/s), the power coefficient Cp for a pitch angle of =2 has an average value of 0.54 with a relative speed λ value of 6.40, and when the origin of electrical losses is ignored, the electrical power equals the electromagnetic power, and the mechanical speed is stable between (70-80 rd/s).
Enhanced Thermal Performance of Parabolic Through Collectors with TiO₂ Nanofluids in An Arid Climate Belhadi, Mohammed Abdelkrim; Kadja, Mahfoud; Mechighel, Farid; Khechekhouche, Abderrahmane; Hamaiti, Youcef
Indonesian Journal of Science and Technology Vol 10, No 1 (2025): (ONLINE FIRST) IJOST: April 2025
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v10i1.81280

Abstract

Solar energy is a crucial renewable resource, yet its efficient utilization remains a challenge because conventional heat transfer fluids have limited thermal conductivity. Parabolic Trough Collectors (PTCs) offer a viable solution for solar thermal energy conversion, but optimizing performance is essential for improving efficiency. This study investigates the performance of a PTC using a 0.3% TiO₂-water nanofluid compared to distilled water (DW) under real environmental conditions in Algeria’s arid climate. Two identical PTCs were tested outdoors at flow rates of 0.2, 0.3, and 0.4 L/min to evaluate heat transfer efficiency. The results demonstrated that the nanofluid consistently outperformed DW because of its superior thermal conductivity and heat retention. At 0.4 L/min, the nanofluid achieved 40% thermal efficiency, 9% higher than DW. However, as the flow rate decreased, the efficiency gap narrowed. These findings confirm the potential of nanofluids to enhance solar energy utilization, supporting sustainable energy solutions in high-irradiance regions.
Aluminum Wastes Effect on Solar Distillation Bellila, Abdelkader; Khechekhouche, Abderrahmane; Kermerchou, Imad; Sadoun, Ali; Siqueira, Antonio Marcos de Oliveira; Smakdji, Nafila
ASEAN Journal for Science and Engineering in Materials Vol 1, No 2 (2022): AJSEM: Volume 1, Issue 2, September 2022
Publisher : Bumi Publikasi Nusantara

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Abstract

Aluminum wastes are widespread in the El Oued region of south-eastern Algeria, particularly in Aluminium workshops and factories. Because aluminum has a high heat conductivity, it can be used to increase the performance of solar stills. Two comparable solar stills were tested for this; one was used as reference solar still SSR, while the other contained Aluminium waste and was used as a modified solar still SSM. When compared to the reference still SSR, the results demonstrate that there is a 33.72 % improvement.
Palm Fibers Effect on the Performance of a Conventional Solar Still Kermerchou, Imad; Mahdjoubi, Idris; Kined, Chamseddine; Khechekhouche, Abderrahmane; Bellila, Abdelkader; Isiordia, German Eduardo Devora
ASEAN Journal for Science and Engineering in Materials Vol 1, No 1 (2022): AJSEM: Volume 1, Issue 1, March 2022
Publisher : Bumi Publikasi Nusantara

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Abstract

The lack of drinking water is one of the most important. Solar distillation remains the simple and effective solution to solve this problem, but the yield of solar distillation is low. However, the thermal performance of the solar still is low. Several researchers have made various experimental modifications to improve thermal performance. In this experimental modification, palm fibers were introduced to improve the performance of a solar still. The results showed that when using palm fibers there was an improvement of 35.6 % compared to the conventional still.
Co-Authors Aboub, Hania Belgasim, Basim Belhadi, Mohammed Abdelkrim Bellila, Abdelkader Cherif, Hakima Hamaiti, Youcef Isiordia, German Eduardo Devora Kadja, Mahfoud Kermerchou, Imad Kined, Chamseddine Maamir, Madiha Mahdjoubi, Idris Mechighel, Farid Sadoun, Ali Siqueira, Antonio Marcos de Oliveira Smakdji, Nafila