chapter 5 Towards Green Energy
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See all →- Write short note on Electrical energy generation and environment. Generating electricity has effects on the environment that depend on the source used; fossil-fuel plants pollute the most, while renewable s... 1
- One solar panel produces a potential difference of 18 V and current of 3A. Connect 4 panels in series to get 72 V, and connect 3 such series strings in parallel to get 9 A. In total 12 panels are needed. Getting 72... 1
- Draw neat and labelled diagrams. a. Energy transformation in solar thermal electric energy generation. Energy transformation in solar thermal electric generation: solar energy → heat energy → kinetic energy of steam → mechanical energy of turb... 1
- Give your opinion about whether hydroelectric plants are environment friendly or not? Hydroelectric plants are largely environment friendly in operation, because they produce no air pollution, but large dams do have some harmf... 1
- Draw a schematic diagram of solar thermal electric energy generation. A solar thermal power plant is drawn as a flow from the sun to the generator: Sun → reflectors → receiver/boiler → steam → turbine → generat... 1
- It is possible to produce energy from mW to MW using solar photovoltaic cells. It is possible because solar photovoltaic cells can be connected in any number, in series and parallel, so the output can be made as small o... 1