Fossil fuels such ascoaland oil is used to generate heat. This heat converts water into steam at very high temperature and high pressure. This steam at high pressure drives a steam turbine. Therotating shaft of the steam turbineis coupled to the armature of the alternator to generate electric...
The natural resources such as oil, forests and freshwater are being consumed at an alarming rate. What problems does this cause? How can we solve these problems? Give reasons for your answer and include any relevant examples from your own knowledge or experience. Write at least 250 words. Tas...
Another means of using oil and other petroleum products to generate electricity is the internal combustion engine, which works by converting the explosive potential of burning petroleum and its derivatives directly into mechanical energy, and then using that mechanical power to run a generator. A gaso...
The real magic isn't that power plants turn fuel into electricity: it's that even small amounts of fossil fuels contain large amounts of energy. A kilogram of coal or a liter of oil contains about 30MJ of energy—a massive amount, equivalent to a good few thousand 1.5-volt batteries!
How does a fuel cell make electricity from hydrogen? What happens in a fuel cell is called an electrochemical reaction. It's a chemical reaction, because it involves two chemicals joining together, but it's an electrical reaction too because electricity is produced as the reaction runs its ...
It turns out, there's a way that we can generate electricity from the moon -- thanks to the tides created by the gravitational pull the moon exerts on Earth's oceans. The Earth is tugged by the sun and moon. The sun dwarfs the moon in size, but the moon is much closer to Earth ...
(b) Engine gauges – Different gauges indicate important parameters such as oil pressure, temperature of coolant, battery voltage, engine rotation speed, and duration of operation. Constant measurement and monitoring of these parameters enables built-in shut down of the generator when any of these ...
Cars powered by fuel cells are also electric, though they use tanks of hydrogen to generate electricity and power an electric motor instead of banks of batteries. You can read more about them in our separate article on fuel cell cars.
Wind turbines in Greece set a national record on September 6, accounting for 81 percent of the country's electricity output. High temperatures, wildfires and flooding pretty much sum up the weather patterns in Greece since the summer. From an unprecedented amount of rain in...
Petroleum companies are also developing alternatives in addition to more traditional forms of drilling. They includenon-hydraulic fracturingthat can penetrate rock without creating large volumes of wastewater. Renewable energies such as wind and solar power can also be used to generate electricity without...