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Week 12

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THE SOLAR ENERGY SYSTEM  Solar energy is one of the important renewable energy that often used nowadays in line with current technology that rapidly increase within the time. Solar power systems are often used as alternative to the gas that widely used for electrical energy, is replaced with a solar energy system which is capable of converting light energy to electrical energy.  Solar energy is one of the renewable energy source that can be found on the earth. Another type of renewable energy in the earth is:  Solar energy Geothermal energy Bio energy Hybrid  Wind energy  Ocean energy  As we know, this renewable energy have many advantages than the non-renewable energy resources.   Clean   Unlimited resources Environmentally safe More cheap as the time and technologies progress.  Solar Collectors Solar collector is a device that collects and/or concentrates solar radiation from the sun. Solar ...

Week 11

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LIGHTNING PROTECTION SYSTEM (LPS) What are LPS? ·          A lightning protection system provides a safe pathway for energy from a lightning strike to find its way to earth, encouraging the bolt to bypass building components that might otherwise to damaged. Example of A Lightning Protection System (LPS) Why using LPS? Lightning protection is essential for the protection of humans, structures, contents within structures, transmission lines, and electrical equipment by controlling a variety of risks resulting from thermal, mechanical, and electrical hazards of the lightning flash current. These risks can be categorized as follows: Risk to persons (and animals), Risk to structures & internal equipment 1.       Risk to persons (and animals) Direct flash, Step potential, Touch potential, Side flash, 2.    Risk to structures & internal equipment Fire and/or explosio...

Week 10

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Gas Supply System   Introduction Gas is one of the fundamental states of matter A pure gas may be made up of individual atoms (eg: neon), elemental molecules made from one type of atom (eg: oxygen), or compound molecules made from a variety of atoms (eg: carbon dioxide) What distinguishes a gas from liquids and solids is the vast separation of the individual gas particles. credit:google Gases have 3 characteristics properties which are: Easy to compress They expand to fill their containers More occupier space compared to solid and liquid Physical characteristics credit:google Gas laws credit:google Natural gas credit: google Natural gas is naturally occurring hydrocarbon gas mixture consisting primarily of methane. It is commonly including varying amounts of other higher alkane and sometimes a small percentage of carbon dioxide, nitrogen, hydrogen sulphide or helium. credit: google Natural gas formed when layers of de...