Current Issue : January - March Volume : 2021 Issue Number : 1 Articles : 5 Articles
Solar energy is a renewable type, clean, and inexhaustible which is sufficiently available on the Algerian territory. The energy\nreceived daily on a horizontal surface of 1m2 is in the order of 5 kWh over almost the whole Algerian territory; the duration of\nsunshine surpasses 2000 hours annually and can reach 3900 hours on the highlands and the Sahara. The importance of this\nwork is based on exploiting solar energy to produce electricity. This study is based on the experimental exploitation of solar\nenergy using solar treeâ??s prototype suggestion. This new model is focused to replace the leaf of a tree by the solar cell, starting by\nexamining the solar field and physical phenomenon related with it; the description of cell photovoltaic comes after; and finally,\nthe dimension of the solar system and the experimental studies are virtually released in the University of Mâ??sila. In this work, a\nprototype of new artificial solar tree is proposed experimentally by using material available in the local market: 25 solar panels,\nmetal support, electrical queues, regulator, and battery....
Recently, selective emitter (SE) technology has attracted renewed attention in the Si solar\ncell industry to achieve an improved conversion efficiency of passivated-emitter rear-contact (PERC)\ncells. In this study, we presented a novel technique for the SE formation by controlling the surface\nmorphology of Si wafers...................................
Performance of organic oils in solar thermal collection is limited due to their low thermal conductivity when they are compared to\nmolten salt solutions. Extraction of organic oils from plants can be locally achieved. The purpose of this study was to investigate\nthe effect of use of copper nanoparticles in some base local heat transfer fluids (HTFs). Addition of volume fraction of 1.2% of the\ncopper nanoparticles to oil-based heat transfer fluids improved their thermal conductivity as deduced from the thermal heat they\nconducted from solar radiation. The oil-based copper nanofluids were obtained by preparation of a colloidal solution of the\nnanoparticles....
Ensuring the structural safety of a deployable solar panel under a severe launch vibration environment is one of the important\nfactors for a successful CubeSat mission. A CubeSatâ??s deployable solar panel proposed in this study is effective to guarantee the\nstructural safety of solar cells by attenuating launch loads owing to the superior damping characteristic achieved by a\nmultilayered stiffener with viscoelastic acrylic tapes. The demonstration model of 3U CubeSatâ??s deployable solar panel was\nfabricated and tested to validate the effectiveness of the proposed design. The basic dynamic characteristics of the solar panel\nwere measured through free-vibration tests according to the various layers of the stiffener. Moreover, the characteristics of the\ndeployed solar panel were measured and investigated under various temperatures to predict its capability under in-orbit\noperation. The effectiveness of the proposed design for launch vibration attenuation was demonstrated through qualification\nlevel sine and random vibration tests....
This paper analyzes the optimal sizing of a particular solution for renewable energy\nresidential building integration. The solution combines a photovoltaic (PV) plant with a heat\npump (HP). The idea is to develop a system that permits the maximum level of self-consumption\nof renewable energy generated by using a small-scale solar array installed on the same building.\nThe problem is analyzed using data obtained from an experimental system installed in a building\nin Pisa, Italy...........
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