Advertisements
Advertisements
प्रश्न
Distinguish between the following.
Electricity generation from solar cells and solar thermal power generation
Advertisements
उत्तर
| Electricity generation from solar cells | Solar thermal power generation | |
| i. | Solar radiation energy is converted directly into electrical energy. | The energy in solar radiation is first converted into thermal energy and then converted to electrical energy through various stages. |
| ii. | The electrical energy is generated directly by the photovoltaic effect. | The electrical energy is generated using reflectors, condenser, cooling tower, turbine and generator. |
APPEARS IN
संबंधित प्रश्न
What are the advantages and disadvantages of using a solar cooker? Are there places where solar cookers would have limited utility?
Name that part of a box-type solar cooler which allow the sun's heat rays to enter the box but does not allow inside heat to go out.
Name the semi-conductor material which is usually used for making solar cells.
Write the uses of solar cells.
If the energy received by 5 m2 area in 10 minutes is 4200 kJ, calculate the value of solar constant.
Why is the solar cooker box painted black from inside?
In a solar water heater, why is the storage tank placed at a higher lever than the solar panel containing coils?
What differences would you expect in the charging of car batteries (i) in bright sunlight (ii) on a cloudy day (iii) at night?
Name one source of energy which is not derived from solar energy directly of indirectly.
Make a table based on forms of energy and corresponding devices:
| Forms of Energy | Devices | |
| a. | Electric | _________ |
| b. | Mechanical | Sewing machine, Bicycle |
| c. | Thermal | __________ |
| d. | _________ | Solar cooker, Solar heater |
Power available from solar cells : DC : : power require to run domestic equipments : _________
Solar reflectors are important, why?
State the importance of inverters.
Complete the following flow chart.
Complete the table.
| Limitations of Solar energy | Limitations of Wind energy |
Solar energy is a renewable energy. How?
How can solar energy be harnessed? Mention any two limitations in using solar energy. How are these limitations overcome?
