Saturday, June 17, 2017

Information about Solar Energy system for roof


Information about Solar Energy system for roof:

Solar energy is an eco-friendly alternative method of generating electricity. In simple terms, this process involves using the Sun’s rays (photons) to stimulate metal sheets in order to loosen electrons from the metal. These electrons then break free of the metal sheets and form a flow of electricity .These metal sheets are comprised of multiple layers of photovoltaic cells , which convert sunlight into electricity,linked together to form larger solar panels. These photovoltaic cells are often composed of silicon, which is a substance commonly used in microelectronics. These cells function by having one sheet of silicon being positively charged which is called the p-type, while the other is negatively charged, called the n-type .This results in a magnetic field across the cell. Due to this, when the sun strikes the side that is negatively charged (stocked with extra electrons), the electrons that are knocked loose are pushed across this magnetic field through a junction of the two sheets towards the positively charged sheet. The cell is also encased in an electrode which is where wiring and energy transfer take place. One more key component to the photovoltaic cell is the reflection-resistant film which allows the most sunlight to pass through to the silicon layers. 
A technical depiction of a solar cell’s construction can be seen in figure .

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Civil engineering is a professional engineering discipline that deals with the design, construction, and maintenance of the physical and naturally built environment, including works like roads, bridges, canals, dams, and buildings..........