Alternative energy sources in the future (Part 1)

Faced with the danger that limited fossil energy resources on the earth are gradually running out, new energy sources have been gradually being more interested by scientists and people. They are considered to be important energy sources in the future.

Faced with the danger that limited fossil energy resources on the earth are gradually running out, new energy sources have been gradually being more interested by scientists and people. They are considered to be important energy sources in the future.

Generating electricity from steam on the sea surface

There is a natural phenomenon that occurs frequently in the ocean: when the sun’s rays hit the water, the water on the surface begins to heat up and evaporate. Taking advantage of this phenomenon, scientists have come up with the idea of ​​producing electricity from this phenomenon. The project is called OTEC (ocean thermal energy conversion – converting energy from water vapor in the ocean).

Accordingly, people will take advantage of the water heated by the sun on the surface of the sea to heat ammonia gases and liquids with low boiling point. The purpose of this work is to create a stream of gas that pushes the turbines to spin to produce electricity. The gas is then cooled by seawater and reused again. This process goes on continuously, causing the turbines to continuously work to produce electricity.

According to scientists, this is an extremely abundant source of electricity. With less than 1/10 of 1% of the solar energy absorbed in the ocean, it could produce 20 times more electricity than it needs to supply the US needs in a day. . The only problem is that the cost of building such structures at sea is not small.

Energy from hydrogen gas

To create this energy source, it is necessary to arrange the hydrogen compartments in liquid form and the duct for this hydrogen gas to react with oxygen gas to form a stream of electrons that rotates the electric motor. This energy source is mainly used to operate environmentally friendly cars. The only waste this new energy generation technology produces is water (the result of a combination of hydrogen and oxygen).

Generates energy from ocean waves

To do this, the scientists used a hydrodynamic device that resembles the shape of a windmill operating in water. When water from rivers or waves at sea hits the device, it spins turbines and generates electric current. In principle, the system works and generates electricity exactly like the windmills. Scientists evaluate this is an extremely abundant source of energy that humanity can utilize, and at the same time can help the earth reduce the impact of the greenhouse effect.

Different Sources of Alternative Energy (part 1)

 

The issues that surround the use of fossil fuels, especially in case of climate change, were considered earlier than we think. In 1896, Svante Arrhenius, a Swedish scientist, was the first person stating that the use of fossil fuel could contribute to global warming.

This issue has become a hot topic for the last few decades. Nowadays, there is a general shift towards environmental awareness while the sources of energy are coming under closer scrutiny. Therefore, a number of alternative energy sources have risen and contributed something positive when being compared to fossil fuels. Lower emissions, lower prices, and the reduction of pollution are all advantages which the use of alternative energy can provide.

Here we write down the list of the most prominent alternative energy sources as well as the benefits they offer and potential for increased uptake in the near future.

  1. Hydrogen Gas

Hydrogen is completely clean burning fuel, unlike any other form of natural gas. Hydrogen gas cells emit only warm air and water vapor when in use.

However, it is mostly derived from the use of fossil fuels and natural gas. Therefore, it can be argued that the emissions which are created to extract hydrogen gas counteract the benefits of its use.

Although the process of electrolysis, essential when splitting water into oxygen and hydrogen, makes this less of a problem, electrolysis can still rank below the previous methods for extracting hydrogen, despite the fact that research continues to make it more efficient.

  1. Tidal Energy

Tidal energy uses the water power to generate energy, much like with the hydroelectric method. However, in many cases, its application has more in common with wind turbines.

The potential of this fairly new technology is enormous. A recent report in the UK estimated that tidal energy could meet up to 20% of the current electricity demands of this country.

The use of Tidal Stream Generators is the most popular form of tidal energy generation. These use the ocean’s kinetic energy to power turbines, without producing any waste of fossil fuels.