Essay On Solar Collectors

The solar industry is divided in three main markets: the European solar thermal market, the Chinese market and the market in other world regions. The industry is segmented in two main types of solar thermal collectors, which are evacuated tube collectors (80 per cent on average of the worldwide newly installed capacity in 2010) and flat plate collectors (20 per cent on average). This industry is characteristic of technology intensive industries with their central innovation: solar thermal water heating which radically reduces costs. They can also count on experimented installers. Each customer adopt and have

Solar power is one of the most environmentally benign energy sources available. Just 20 days of sunshine produces the same amount of energy as everything stored in Earth’s reserves of oil, coal, and natural gas—yet does not come close to producing the same amount of environmental damage as even one of those options (Greentips, 2005). Solar farms are a clean renewable source that can meet high energy demands and can creates thousands of jobs in the future. It is also used during peak demand for electricity. During the hottest days, the panels are absorbing more energy while homeowners have the a.c. on full blast. They can be installed anywhere

Yaghoubi [15] evaluated the heat loss in the heat collector field of 250 KW solar power plant in Iran for several conditions. Experimental and numerical analysis have been made for comparison. Three different tubes are used; vacuum, lost vacuum and broken glass, and an infrared camera (IR) is used to evaluate the temperatures around the tube. The results showed that the heat loss of the lost vacuum (air) tube is 40% higher than the vacuum tube, so 3-5% of the efficiency of the collector is reduced. For

Al-Sulaiman et.al [Exergy modeling of a new solar driven trigeneration system] have used exergy modeling in order to evaluate the exergetic performance of a novel-trigeneration system utilizing parabolic trough solar collector (PTSC).

In the basic process of conversion of solar into heat energy, an incident solar irradiance is collected and concentrated by concentrating solar collectors or mirrors, and generated heat is used to heat the thermic fluids such as heat transfer oils, air or water/steam, depending on the plant design, acts as heat carrier and/or as storage media. The hot thermic fluid is used to generated steam or hot gases, which are then used to operate a heat engine. In these systems, the efficiency of the collector reduces marginally as its operating

analysis has incontestable that solar energy is a perfect supply for lowtemperature heating applications like area and domestic quandary heating. Solar heating applications area unit intuitive since, once solar power is absorbed on a surface, the surface temperature rises, providing a heating potential. The use of solar energy to supply refrigertion is a smaller amount intuitive.

A solar thermal collector collects heat by absorbing heat from sunlight. A collector is a device for capturing solar radiation.

The researchers thought of trying to come up with a makeshift solar cooker in order to test if this way of cooking may be effective and useful in substituting for a frying pan and a stove. The solar cooker may be a possible alternative when cooking outdoors under the heat of the sun. It could also be a huge energy saver and a safer way of cooking, avoiding hazards such as burns. The researchers have picked the safest and easiest procedure and materials in making a solar cooker so that teenagers or even

     Solar energy is the most ancient kind of energy found on earth, for it is as old as the sun. "Solar" means from the sun. The earth is only one of the many planets which is bathed in the sun's overflowing energy. Every second the world receives 95.8 trillion watts of power…just think about that for a minute. Think about how much power the earth just received in the time it took you to read this sentence? It is well beyond the amount of power used in one day. It has the potential to satisfy all our energy needs forever without ever having to use the pollutive fossil fuels ever again. "The problem however, does not lie in the limited source, as do fossil fuels, but in harnessing

This type of transpired solar collector is installed on the building’s roof top (see figure 2a) and these types are used only when the stand alone types can’t be used. Since These construction types have flexibility in terms of tilt they can yield higher energy compared to that of stand alone types [1]

In order for one to further understand the importance of solar energy, the problem of global warming must be explained. As defined by Webster’s Dictionary, “Global Warming” is an increase in the earth’s average atmospheric temperature that causes corresponding changes in climate and that may result from the greenhouse effect. With an average increase in atmospheric temperatures, our planet is slowly deteriorating. In order to stall or halt this global destruction, countries must turn to solar energy as a cleaner alternative to the depletion of fossil fuels. Solar energy creates a homeostasis for the climate. Due to its ability to decrease global climate changes, solar power can address global warming in several ways.

The creation of solar energy requires little maintenance and solar electricity power plants produce zero emissions. Solar power plants use two different types of technologies: Concentrated solar power and Photovoltaic systems. Concentrated solar power plants, also known as “concentrated solar thermal”, uses solar thermal energy to make steam that is converted into electricity by a turbine. A photovoltaic system, also known as solar panels, generates electricity from sunlight. It is a device that converts light energy into electrical energy.

Solar heating and cooling has been difficult to assess due to the difficulty and methodology of information gathering. It is, however, estimated that this industry has employed 0.5 million people of which about 70% were in China. Since the data availability for solar heating, small hydro and geothermal is relatively low there has been potential for underestimation of jobs.

I am certain that all have heard of the terms green house gases, fossil fuels, and global warming. Have you ever questioned what will happen if nothing is done about the environmental problems facing the world today? What if I answer you that, we can merely use the power from the sun to power up our entire planet without the use of harmful energy sources, which affect our atmosphere? The power from the sun is what we call solar power. Solar power is the energy that comes from the sun as light and heat energy, and then it is later converted into electrical energy through solar panels (Nelson, 2008). This kind of power is completely free, right? Why should we put a lot of expense on other sources of energy, when there is a complete free

Solar Power has been observed as early as the year of 1839 by a French physicist named Alexandre-Edmond Becquerel. He invented the first photovoltaic cell. Since then his studies and works have been perfected on and continue to change the world in which we live for the better. Photovoltaic cells have constantly been evolving ever since. In 1883, Charles Fritts built the first solid state photovoltaic cell using materials such as gold and selenium. With further advances to the system, scientist were able to recreate the cell in a way that could serve as an alternative power source on the satellite named Vanguard that was flown into space in the year of 1958. In the 1970’s there was an oil crisis when Middle Eastern countries proclaimed a trading ban, encouraging oil companies to buy solar firms. Funded research allowed for first, second and third generation cells to be constructed. Currently, the cost of solar energy has exponentially decreased with the falling price of silicon, allowing for many new innovations to take place.