Fridge with Solar Thermal Power

Know-how about physics can be helpful if applied to the creativity, giving rise to inventions that may serve too in the home, in situations where we have access to the electricity grid, or why not use a Renewable energy.

On this occasion, we are presenting an invention made by Emily Cummins, a British inventor of 23 years of age, who designed a refrigerator that does not require connection to the electricity grid home and offers almost the same performance as a conventional refrigerator.

Consists of two cylinders, one interior made of metal, smaller diameter leaving abroad, which presents perforations to grid mode, which can be performed both wood and plastic, including a space should be filled with sand or earth.

Works through the use of solar thermal energy, and for its operation requires only water or any substance to moisten the soil or sand placed between the cylinders, running on the physical principles of evaporation and heat transfer.

Solar energy tends to warm moist phase and begins to evaporate the water, causing a clearance from the inner cylinder heat, causing content in the internal cylinder to remain at a temperature close to 6 ° C.
As obvious disadvantage, this cooler requires a constant monitoring of water level, apart from the need to add the amount needed to keep always wet.

Google increases its commitment to the renewable solar thermal

Recently Google has announced that it will be a very important investment in a project of solar thermal energy. They are 168 million dollars, which constitutes its greatest economic bet on renewable energy, adding to the time the figure of $ 250 million.



The project in question is the Solar thermal power of Brightsource Energy's Ivanpah plant in the Desert of Majave, in the southwest of United States. The plant will have an installed capacity of 392 MW and is expected to be completed by 2013.

It will be composed of 173.000 heliostats of two mirrors that reflect and concentrate solar energy in the central tower. There the heat produces steam that will move the turbine, generating electricity.

At the same time, Google is working on the technological development of mirrors more efficient to enable future to reduce the costs of solar thermal. 





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Energy Thermal Sewers

In recent times has been given enough importance to geothermal sources, even encouraged by some of the energy companies most important countries, such as in the case of Acciona in Spain, looking for that this renewable energy is increasingly more acceptance and development.


To continue to show that it is a viable energy resource, students of the School Wattignies in Paris began to analyse the different heat sources from surrounding the Seine and adjacent sewer drains, making use of waste water discharged into various tributaries.

The analysis aims at converting the energy of hot water, washing machine, dishwasher, showers and toilets of industries and households, which can be converted and used for the production of Thermal power, with results which promise to be more than favourable.

Through a preliminary essay, for example, will allow the school to reach 70 per cent of the demand for heating, avoiding the emission of some 76.3 tons of carbon dioxide year, figures more than interesting that transported to the urban scale they become significant.



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Thermal Solar Energy at Home

Thermal solar energy is less effective in terms of energy output when compared with wind energy or solar, but should be noted that the costs of the equipment and installation are much smaller, so it is depreciated more quicklymaking this kind of green energy in one of the best options to install at home.


Primarily oriented to the production of hot water, this energy can produce between 60% and 80% of consumption, and with the long life of these solar panels, the amortization and a high degree of economic benefit is guaranteed.
Once we have determined the size of the installation depending on consumption of hot water which we plan it is time to get accounts.
A solar collector of low temperature and an accumulator of 200 litres of water can supply 66% of the consumption of hot water for a family with four members, with a consumption of 150 litres per day to 50 degrees Celsius of temperature.
This is how an installation of solar thermal energy of about 2 square metres to 1500 euros guaranteed savings of more than 150 euros per year, and will grow year after year.

Solar thermal energy

We have talked about different types of energy in our country. Above all I tried to translate into different post some information about renewable energy and energy types that exist. Solar thermal or solar thermal energy is about harnessing the Sun's energy to produce heat that can be used for cooking food or to heat water, which will be aimed at consumer household and individual. It can also produce mechanical energy which will create electric energy.In addition you can use to feed a machine cooling by absorption, which uses heat instead of electricity to produce cold which can prepare the air of the premises.It is interesting to know also how compact equipment home, for this type of energy used to generate hot water uses, health-oriented. There are two types of commonly called facilities heaters: open-circuit and closed-circuit.The open circuit, drinking water passes directly by solar collectors. This system reduces costs and is more efficient.Compact household equipment are typically by a deposit of about 150 litres of capacity and a collector of 2 m. These facilities can provide 90% of the water needs of hot annual for a family of 4 people, depending on the radiation and use. From among the teams more common, we can find: equipment forced circulation, thermosyphon teams, teams with system drain back.

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