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Design and Fabrication of a Fully Automated Solar Panel Cleaning Module with Microfiber Brush
Published in P. C. Thomas, Vishal John Mathai, Geevarghese Titus, Emerging Technologies for Sustainability, 2020
R. Rahul, Ronald Raphel, C. P. Ignasious, Joel Ignatius, Richu Zachariah
Brush unit: The brush used for cleaning is a roller, made of micro-fiber cloth. Micro-fiber cloth has good cleaning characteristics and is non-abrasive. An ordinary cleaning cloth has fibers made of cotton or a synthetic material such as nylon. A microfiber cloth has far more fibers and they’re smaller. Microfibers are able to attach themselves to even the smallest, most microscopic dirt particles due to adhesion force between micro-fiber and dirt. This adhesion force is known as van der Waals force. Although there is only a microscopic amount of van der Waals force between one microfiber and any given dirt particle, millions of microfibers in a cloth, magnify the sticking effect. The roller brush is rotated by geared DC motor. The roller moves up and down the panel with help of chain drive. The roller is fixed on two chains at both ends of roller using clamp and screw nuts. The chain motion is also powered by geared DC motor. The power is given from motor to the chain by using sprockets. Two sprockets at one end is joined by a MS rod of 10mm diameter. The rod is rotated by motor by another chain which connect a sprocket located at middle of rod and motor. Up and down motion of brush is achieved using chain drive. 4 sprockets are used keeping two sprockets free and other two driven using DC geared motor. Two sprockets are connected using shaft. In the middle another sprocket is fixed to which drive is given by motor.
Sustainable plant-based bioactive materials for functional printed textiles
Published in The Journal of The Textile Institute, 2021
Alka Madhukar Thakker, Danmei Sun
Similarly, microfibers and microplastics are hidden culprits. Microfibers, as defined by the textile institute, is a fiber or filament of linear density below 1 decitex. Research from the Coastal Ocean Research Institute in Vancouver revealed 878 tones of textile microfibers washed into North America waterways every year. Wastewater treatment plants (WWTP) strains 99% of these pollutants as sewage sludge. They are spread onto the farmlands and find their way into the human food chain. Similarly, it applies to microplastics. Research scientist at Plymouth University UK, fathomed 1/3rd of the fish studied with at least 1 microplastic, with 75% of which was synthetic derived PET fibers, within their gut. Canadian scientists found aquatic zooplankton consuming microfibers in the North Pacific Ocean. The Salmon in British Columbia feeds on this zooplankton with pollutants (Mowbray, 2019-2020).
Sustainable processing of cotton fabrics with plant-based biomaterials Sapindus mukorossi and Acacia concinna for health-care applications
Published in The Journal of The Textile Institute, 2021
Similarly, microfibers and microplastics are hidden culprits. Microfibers, as defined by the textile institute, is a fiber or filament of linear density below 1 decitex. Research from the Coastal Ocean Research Institute in Vancouver revealed 878 tonnes of textile microfibers washed into North America waterways every year. Wastewater treatment plants (WWTP) strains 99% of these pollutants as sewage sludge. They are spread onto the farmlands and find their way into the human food chain, the same goes for microplastics. Research scientist at Plymouth University UK, fathomed 1/3rd of the fish studied with at least 1 microplastic, with 75% of which was synthetic-derived PET fibers, within their gut. Canadian scientists found aquatic zooplankton consuming microfibers in the North Pacific Ocean. The Salmon in British Columbia feeds on this zooplankton with pollutants (Mowbray, 2019).
A review on novel approaches to enhance sound absorbing performance using textile fibers
Published in The Journal of The Textile Institute, 2022
Jayawardana Withanage Achini Madushika, Wilathgamuwage Don Gamini Lanarolle
Microfibre is 100 times finer than a human hair. A staple fibre or a filament of linear density approximately 1 dtex or less is defined as a microfibre. Microfibres are manufactured by ultrahigh speed spinning methods or by dissolving matrix component of bicomponent fibre (Ravandi & Valizadeh, 2011). Microfibre fabrics exhibit lustre, pleasant softness and handle, good drapability, bulkiness, thermal insulation and have super-absorbent properties such that absorbing over seven times of water in their weight (Ravandi & Valizadeh, 2011).