solar thermal power[1].pptx - Read-Only.pptx

Solar theral energy

1. WELCOME to PRESENTATION on SOLAR THERMAL ENERGY Submitted by: - Harish Sagar M.Sc (physics) Roll no. 2400020550002 Submitted to : - Dr. Ajay Kumar

2. Solar thermal energy (STE) is a form of energy and a technology for harnessing solar energy to generate thermal energy or electrical energy for use in industry, and in the residential and commercial sectors. What is it?

3. At First At first AUGUSTIN MOUCHOT in 1878 UNIVERSAL EXHIBITION in PARIS demonstrated a solar collector with a cooling engine making ice cream.

4. Electricity is genearted from solar thermal energy Solar thermal power  plants use the  sun's  rays to  heat  a fluid to high temperatures. The fluid is then circulated through pipes so that it can transfer its  heat  to water and produce steam. The steam is converted into mechanical  energy  in a turbine, which powers a generator to produce  electricity .

5. SOLAR THERMAL ENERGY STORAGE Thermal energy storage (TES) TES are high-pressure liquid storage tanks used along with a solar thermal system to allow plants to bank several hours of potential electricity . 1.Two-tank direct system: solar thermal energy is stored right in the same heat-transfer fluid that collected it. 2.Two-tank indirect system: functions basically the same as the direct system except it works with different types of heat-transfer fluids 3.Single-tank thermocline system: stores thermal energy as a solid, usually silica sand.

6. Types of solar thermal power plants A. Parabolic trough B .Solar Dish C .Solar Power tower A B C

7. PARABOLIC TROUGH A  parabolic trough  is a type of SOLAR THERMAL COLLECTOR that is straight in one dimension and curved as a parabola in the other two, lined with a polished metal mirror. The energy of sunlight which enters the mirror parallel to its plane of symmetry is focused along the focal line, where objects are positioned that are intended to be heated.

8. SOLAR DISH A  solar thermal DISHcollector  collects heat by absorbing sunlight. A collector is a device for capturing solar radiation. Solar radiation is energy in the form of electromagnetic radiation from the infrared(long) to the ultraviolet (short) wavelengths. The quantity of solar energy striking the Earth's surface (solar constant) averages about 1,000 watts per square meter under clear skies, depending upon weather conditions, location and orientation.

9. SOLAR POWER TOWER The  solar  power  tower , also known as 'central  tower ' power plants or 'heliostat' power plants or power towers , is a type of  solar  furnace using a  tower  to receive the focused sunlight. It uses an array of flat, movable mirrors (called heliostats) to focus the sun's rays upon a collector  tower  (the target).

10. SOLAR POWER TOWER MECHANISM The  technology  uses many large, sun-tracking mirrors commonly referred to as heliostats to focus sunlight on a receiver at the top of a  tower . A heat transfer fluid heated in the receiver is used to generate steam, which, in turn, is used in a conventional turbine-generator to produce electricity.

11. ADVANTAGES of SOLAR THERMAL ENERGY No Fuel Cost  – Solar Thermal Energy does not require any fuel like most other sources of renewable energy. This is a huge advantage over other fossil fuels whose costs are increasing at a drastic  rate every year. Electricity prices are increasingly rapidly in most parts of  the world much faster than general inflation. Price shocks due to high fuel costs are a big risk with fossil fuel energy these days. Predictable, 24/7 Power  -Solar Thermal Energy can generate power 24 hours a day. This is made possible as solar thermal power plants store the energy in the form of molten salts etc. Other forms of Renewable Energy like Solar PV and Wind Energy are intermittent in nature. The electricity supply is much more uniform and reliable.

12. SOLAR THERMAL ENERGY IN INDIA India is densely populated and has high solar insolation, an ideal combination for using solar thermal power in India. One of the first applications of solar power has been for water pumping, to begin replacing India's four to five million diesel powered water pumps, each consuming about 3.5 kilowatts, and off-grid lighting.Graph show solar thermal resources in india.