Goethermal.ppx

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Goethermal.ppx

  1. 1. BEE 3243 ELECTRICAL POWER SYSTEM TITLE : GEOTHERMAL LECTURE : EN. ZAFARI AHMAD
  2. 2. GROUP MEMBERS <ul><li>ALIFF RIDZUAN BIN ZULKIPLI DE090103 </li></ul><ul><li>MUHAMAD HANIF BIN FAUZI DE090110 </li></ul><ul><li>MUHD FAIZ AKMAL BIN AHMAD DE090128 </li></ul><ul><li>MOHD SYAFIQ BIN MAHMOOD DE090029 </li></ul><ul><li>MOHD TAUFIK BIN MD JAIS DE090080 </li></ul><ul><li>MOHD NAJMI BIN TAHIR DE090140 </li></ul><ul><li>MOHAMAD SAIFUL RABBANI BIN SULAIMAN CE090261 </li></ul><ul><li>NAFAIZAL BIN ADNAN CE090128 </li></ul><ul><li>NURUL MUSILIMAHBINTI LAHAJI DE090074 </li></ul>
  3. 3. WHAT IS GEOTHERMAL ?? <ul><li>Geothermal power is from the Greek words ‘geo’ meaning earth and thermal meaning heat. </li></ul><ul><li>Geothermal is energy generated by heat stored beneath the Earth's surface or the collection of absorbed heat in the atmosphere and oceans. </li></ul>
  4. 4. WHAT IS GEOTHERMAL ENERGY?? <ul><li>A renewable energy source because the water is replenished by rainfall and the heat is continuously produced inside the earth. </li></ul><ul><li>Geothermal energy is generated in the earth's core, about 4,000 miles below the surface. </li></ul><ul><li>Temperatures hotter than the sun's surface are continuously produced inside the earth by the slow decay of radioactive particles, a process that happens in all rocks </li></ul>
  5. 5. WHERE IS THE LOCATION OF GEOTHERMAL???
  6. 6. WHERE IS GEOTHERMAL ENERGY FOUND ?? <ul><li>Deep underground with no visible clues showing above ground. </li></ul><ul><li>Geothermal energy can sometimes find its way to the surface </li></ul><ul><li>in the form of: </li></ul><ul><ul><ul><li>Volcanoes and fumaroles </li></ul></ul></ul><ul><ul><ul><li>Hot springs </li></ul></ul></ul><ul><ul><ul><li>Geysers </li></ul></ul></ul>
  7. 7. <ul><li>The most active geothermal resources are usually found along major plate boundaries where earthquakes and volcanoes are concentrated. </li></ul><ul><li>Most of the geothermal activity in the world occurs in an area called the Ring of Fire. This area rims the Pacific Ocean. </li></ul>CONT...…
  8. 8. USES OF GEOTHERMAL ENERGY <ul><li>Some applications of geothermal energy use the earth's temperatures near the surface, while others require drilling miles into the earth. </li></ul><ul><li>The three main uses of geothermal energy are: </li></ul><ul><ul><li>Direct Use and District Heating Systems . </li></ul></ul><ul><ul><li>Electricity generation in a power plant requires water or steam at very high temperature. </li></ul></ul><ul><ul><li>Geothermal heat pumps use stable ground or water temperatures near the earth's surface. </li></ul></ul>
  9. 9. PROCESS 0F GEOTHERMAL??
  10. 10. <ul><li>1. Direct use of geothermal energy </li></ul><ul><li>2. Geothermal Power Plants </li></ul><ul><li>3. Geothermal Heat Pump </li></ul>TYPE OF GEOTHERMAL ENERGY <ul><ul><li>A) Flash Power Plant </li></ul></ul><ul><ul><li>B) Dry Steam Power Plant </li></ul></ul><ul><ul><li>C) Binary Power Plant </li></ul></ul><ul><ul><li>A) Closed loop fields </li></ul></ul><ul><ul><li>B) Open loop systems </li></ul></ul>
  11. 11. FLASH POWER PLANT <ul><li>Also know as Wet Steam Systems. </li></ul><ul><li>Geothermal steam is separated in a surface vessel and delivered to the turbine, and the turbine powers a generator. </li></ul><ul><li>Temperatures in a wet steam system can reach up to 370°C with boiling. </li></ul>
  12. 12. DRY STEAM POWER PLANT <ul><li>Uses direct steam. </li></ul><ul><li>Dry steam fields are rare. </li></ul><ul><li>Water boils underground and generates steam at temps of 165°c and pressure of about 100psi. </li></ul>
  13. 13. BINARY CYCLE POWER <ul><li>The geothermal water heats another liquid, such as isobutane, that boils at a lower temperature than water. </li></ul>
  14. 14. ADVANTAGES <ul><li>Supply - It is virtually inexhaustible. The temperature a few miles beneath the Earth's surface is nearly 500 degrees Fahrenheit. </li></ul><ul><li>Land - Built directly over the energy source and can easily provide heat or electricity to nearby areas. </li></ul><ul><li>Pollution - Reduce the use of fossil fuels, which in turn will reduce emissions into the atmosphere. </li></ul><ul><li>Reliability - Can be used to produce electricity 24 hours a day. If the level of steam drops too low, pumps can be used to inject water back into hot rock to generate more steam. </li></ul>
  15. 15. DISADVANTAGES <ul><li>Place - Not many places where you can build a geothermal power station. I t must be of a type that we can easily drill through. </li></ul><ul><li>Source - Sometimes a geothermal site may &quot;run out of steam&quot;, perhaps for decades. Backup heat sources are required in cooler climates. </li></ul><ul><li>Risks - Hazardous gases and minerals may come up from underground, and can be difficult to safely dispose of. </li></ul><ul><li>Structure - Since accessibility to terminal units is important in geothermal systems, architects and mechanical and structural designers must carefully coordinate their work </li></ul>
  16. 16. HOW IT WORKS??

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