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Indirect Evaporative cooler

 

Air Conditioning uses Solar energy and water

indirect-evaporative-cooling-ac

Currently, gets the huge potential of renewable energy , but until now was not spoken as refresh environments without even spending a Fortune with electrical energy . So far, as it began to appear on the market environment air conditioner or air conditioning (as you prefer) fed by energy Sun air and water.

A company located in Denver Colorado, USA, developed one of the most practical systems of “air conditioning Solar “powered by solar energy made so far. The Coolerado as it is called, is a unit of portable environment that uses both the power of the Sun and the water, clean and simple shape that uses the technology of atmosphere known as “energy psychrometic” which deals with the transfer of heat.

The units include a set of solar panels that generate the electricity used to power the unit. The fresh air is sucked into the unit through a fan. The air then passes through a special filter removing any impurities and then enter in special chambers known as HMX for heat exchange. Compared to an air conditioning system, or a York air conditioning (Split) a Coolerado’s AC unit enough able to refresh a 3000 square meters, environment and only need 600 watts of power, about 1/3 of the amount needed to operate a hair dryer. 

On top of that, the new air conditioning system does not use the famous CFC gas hitting the ozone layer. With this the Coolerado is one of the great machines that can assist and the cities, where much of the heat generated in the cities comes from the own air-conditioners and the “heat island effect”.

What is a Solar Air Conditioner?

 

Solar Air Conditioning is an air conditioning system (cooling and heating) that uses solar energy to operate.

How this technology saves energy: The system of the flat solar dish absorbs the infrared rays, as well as other radiations of the sun. This flat solar dish then becomes hot internally and thereby heats the cooling gas when it passes through it. In turn, the refrigerant gas has thermal energy. This process increases the internal energy of the refrigerator molecules. These move with a higher kinetic energy value (higher velocity) than previously. The gas molecules collide with each other and jump with higher energies. This weakens the intermolecular forces and the molecules move further away, which then results in an increase in volume.

At this point, most if not all the pressure produced by the additional heat is released in mass volume flow and therefore substantially increases the molecular velocity of the refrigerant gas. This results in an increase in the temperature difference between the condensing and ambient temperatures, leading to an increase in the surface area of ​​the condenser.

The Condenser Process:

The system condenser is designed to manage the compressor operation at full load. During full sun (when a conventional air conditioner works at full load), the condenser process in a solar air conditioner will ensure that the compressor will virtually never run at full load. Flat plate heat uses heat (temperature only) by increasing the kinetic energy of the gas molecules, thereby increasing the mass volume flow, and also creating an improved Delta T, thereby in fact increasing the efficiency of the heat exchanger (Condenser) in a solar air conditioner.

 

Solar Air conditioner

 

AIR CONDITIONING POWERED BY THE SUN: MYTH OR TRUTH?

Due to the high temperatures people seek alternatives to cool off, but with the current shortage of water and their respective fines, options such as swimming pools and lengthy baths are off the list. Besides, these are temporary options to freshen up.

To resolve this issue the vast majority of the population chooses to buy air conditioning or fans, and that creates another problem: the electric bill.

As energy prices are rising too much and the heat remains strong people have searched for “air conditioning powered by the Sun.” Below 3 Myths and truths:

The air conditioning can be moved only with photovoltaic solar energy?

Truth: To have an air conditioner moved only to solar energy, it is necessary a lot of solar panels and many batteries (So you can) but this makes the high cost and to a common home the financial return is too long. In situations where you do not have access to network and need to use a diesel generator this solution becomes economically viable. (example fishing boats)

The air conditioning can be moved only with photovoltaic solar panels?

Myth: the air conditioning needs a stable supply of energy. If the day is cloudy or rainy the energy generated by the solar panel may not be sufficient for the air-conditioning work.

The LG has a Solar air-conditioning?

Truth: Though this model is not available in Brazil yet. He has a small solar panel that only produces 70Watts 3.5% of energy that air-conditioning consumes (this model consumes around 2000Watts). The LG has a lot more to show the brand’s commitment to sustainability than solve the issue of energy consumption of air conditioning.
Solar-air-conditioner

There are some other solutions being developed to reduce the energy costs of air conditioning using solar thermal (solar heating). Such equipment using heat exchange pumps and are practically nonexistent in Brazil until then (save rare exceptions).

Therefore the best way to use solar energy in Dubai to power an air conditioner is the installation of a photovoltaic system connected to the network.

For companies and businesses that operate during the day, it’s a perfect solution: When the day is very warm and sunny you’re producing enough energy with solar panels and this energy is used to power the air conditioner. If you happen to spend a very large cloud and lessen your solar energy production has no problem because, you’re still connected to the network and that your Panel is unable to provide the distributor network provides.

 Even if you use air conditioning at night, when there’s no sun, no problem because you generate excess energy during the day and this energy goes to the distributor network and generates energy credits that are used to shoot down your consumption at night (see How does photovoltaic system). This way you can use and abuse of your air conditioning without worrying so much about the electric bill!