Solar thermal Power engines.

The idea of doing it depends on the effect of light falling on the semiconductor as we explained in previous topics.

Solar power Engines

And also we all know the generators that are powered by diesel engines which depend on the idea of their work on a diesel engine that works in gasoline to generate a rotational movement to rotate what is known as the power supply or (generator) which in turn produces electricity as a result of its rotational movement and some of which is small may exist in many houses The shops are large and are located in factories and companies.

But in this topic we will talk about another way that many may not know the solar energy engine or the so-called hot air engines, which depends on the thermal energy of the sun as a huge source of energy to rotate the solar engine which has a special design and does not depend definitively on any external source of energy from Solar, gasoline, natural gas or other-it only depends on the idea of its work on the heat of the sun. And of course it can be plugged into a generator or what is known to generate electricity from the rotation of this engine. It has been found that this system works very efficiently and excels much on solar panels to generate electricity. This is what we are talking about in our subject in some detail.

The idea and evolution of solar energy engines:

The idea of solar energy engines actually appeared in 1816 on the hands of the world, Robert Stirling, when he did a design for a thermionic engine that contained a gas that could be helium, hydrogen or nitrogen, and the idea was to heat the gas in one end and cool the gas inside. For the other end either with water or air as shown in the image above and the movement begins depending on the expansion of the gas when heated and shrinking when cooled. And then the design of this engine to operate the external heating of any heating source may be burning fuel or even a candle burning. And you can do more research on this type of engine, it has several forms that cannot be expanded to mention it all, we are just talking about the idea. You can search for it under the heading St riling Engine.

This idea has not been of interest to many since 1816 and no one knows why? It may be the political or economic reason or the desire of companies working in the field of diesel engines to control the market or other we all know that even scientific experiments and researches are driven by global capital to hurt the interests of some personalities and companies and in any case it is a long time and in 1987 Rolf Major Bach The solar power engine, which adopted the same idea as Robert Stirling, but this time the heat source, was carefully concentrating the sunlight at one point to get a huge amount of heat.

As is evident in the image above, a group of mirrors were used in a special design to work on the concentration of rays reflected in the sun at one point to generate a huge temperature that can easily manage a thermal engine as mentioned and thus generate electricity through the rotation of a generator linked to the engine.

The design is also associated with a solar disc tracking system that moves with the movement of the sun's disk throughout the day and year to get the largest possible amount of thermal energy from the sun.

This idea was developed but only slightly later.

Solar power generation at the moment:

Solar power engines have started to show up again in recent years as many companies have started to show their production and many projects have been implemented around the world to generate electricity by using the idea of solar power engines and are considered to be the highest efficient solar power generation methods so far so that Its efficiency is up to 35% and may increase and its lifespan is up to 90 years while the best types of PV solar panels are not more efficient in the best standard conditions than 21% and a hypothetical life of about 25 years. 

It is very competitive and highly efficient and excels in its efficiency on all known renewable energy sources

Components of solar power generation systems

It is also known as CPS (Concentrated Power Systems) and is simply composed of the solar collector or concentrator, which is a quasi-circular form that is largely similar to the form of satellite capture dishes and is covered from the inside by a reflective surface (mirrors) with certain angles that allow the gathering of sun rays. At one point in the middle and this system is also installed on a motor capable of movement throughout the day and year to track the movement of the sun so he can get the largest amount of energy throughout the day and year.

The sun's rays are then reflected in the future, which may consist of a mirror system and a lens to focus rays at one point, the point at which the PCU-Power Conversion unit begins to function, which consists of:

-Solar power engine which we talked about by Stirling engine which in turn converts thermal energy into a rotational movement

-Generator Alternator, which converts this rotary motion into electricity

-Electrical controller to bedtime the outside voltage

In some systems, it may also contain a thermal power unit to allow it to work under conditions of sun absence due to clouds or similar.

In the end, we hope that this system can solve the recurring energy crises of our time and provide economic solutions, and we hope to implement these systems in our Arab countries and expand their research so that we can keep up with the growing needs of energy as human progress continues. Here we have tried to pass in some detail on the idea of solar power engines and we are happy with your questions in the comments so that we can show more details and benefit from the experiences of the Arin also.