NASA Develops Ecological Propellant

The problem of the use of Fossil hydrocarbons is not only economic but also ecological, and therefore that is emerging as an alternative to the morning the use of electric cars as a solution to the daily mobility, coupled with the development of new sources of Clean energy sources ranging from the use of cars to food remains (which uses the technique of Biogas for a fuel efficient) until the creation of new technologies which take advantage of other sources energy, not only applied to cars but to all transport in general.

That is why that the well-known United States space agency has a project that seeks to incorporate Green energy among its ranks, whereas each transport is released into space to demand an innumerable amount of fuel in hand.

NASA official spokesmen have confirmed the development of a new propellant that seeks to replace the current Hydrazine fuel, which although it has a great performance for their function, is also a substance highly toxic.

Said the implementation of different Technologies propellants that have the same or better performance than the current fuel used in spacecraft, which are fundamental premise the reduction to the Environmental impact.

Currently used hydrazine, which has a high efficiency for missions, can be stored for long periods of time and can be used both satellites and exploration missions employing ferry, but this has its downside.

Not only he is a huge economic cost for operation and processing, but that it also implies a danger to its corrosive and highly toxic, power that is motivating to the search for new technologies.

Ecological Benefits of Alternative Energy

There are a lot of reasons why alternative energy is favorable despite the big expense that it brings about to the world economy. There are economists who believe that by using this form of energy, a country's financial system will drop off drastically. Based on the on-going studies conducted by several research groups, worldwide, investing for alternative energy may cost a great deal of money: however this belief can be considered as a drawback for only today.

As the fossil fuels, coal and uranium, which are the main sources of energy, fuel, and electricity, are getting used up it is expected that the price that will be spent for alternative energy today will equal the regular price of energy (kwh) in the future.

The Alternative Energy System has invaluable benefits that range from a consistent multitude of societal, ecological and economical advantages. It does not produce toxic waste materials, harmful pollutants and emissions (greenhouse gases) produced by factories and power generating plants that directly affect Mother Nature. Since it is a renewable energy source it will not use up the already limited stock of fossil fuels, coals and some other natural resources that are becoming extinct. This only means that the next generation will have plenty of these resources and the future is never at risk.

Without a doubt alternative energy will surely provide a stable price since it will not be imported from other oil-producing countries anymore. Likewise, there will be an ample supply of power to the neighboring residents since this form of energy will be produced locally. And because the sources are renewable, investing for an alternative energy system today not only guarantees security in energy production for the future but also ensures a fixed price in oil and energy, which nowadays is ever fluctuating.

There is no better time to stop the society's reliance on the conventional energy sources but now. Every thing has its own beginning, though the transition may not start up smoothly but as technology advances, in time, this form of energy will eventually hold us independent from fossil fuels, coals and nuclear power. Nature is life's treasure, thus the resources that maintain its glamour should be preserved.

 Preserving today's natural resources is like preserving the lives of the next generation. We should invest on something that both the present and the future generation will benefit. This way we will be able to sustain the needs of today and the next generation.

Energia hidroelectric: in search of less ecological impact

We analyze the main ecological impacts derivations of hydroelectric dams and solutions that promise to overcome these problems in the future.

One of the oldest forms of energy is hydroelectric. Its use has been documented for centuries and is one of the most common forms of renewable energy. So common is its implementation in this regard, for example in EE.UU., the renewable energy sector gets hydropower 49% of its total production.

To qualify for hydroelectric power, require large amounts of water that fall, so the pressure exerted by water triggers the operation of turbines which - in turn - produce electricity..

Hydroelectric energy It is especially suitable for those areas that have very large amounts of water availability. Today, it constitutes 21 per cent of renewable energysources. Conventional hydropower generation methods require the use of dams which act as reservoirs of water to move the turbines and generators.

While the force of the water gives us an alternative more environmentally friendly than fossil fuels, the dams are expensive to build and generate a significant impact on the environment. Change the course of the rivers may involve diverting the water from which many people depend on for drinking, irrigation of crops, livestock, etc. This also implies flood large tracts of land (with their fields, natural habitats and even villages). And of course they also pose a risk to the ecosystem and the survival of fish and other aquatic animals.

To show all these points only enough with some examples. In our blogs we have on previous occasions brought news about the issues surrounding the construction of you dams or reservoirs. One of them, who took a certain international significance is the from the Belo Monte damin Brazil, where local Aboriginal groups were in a legal battle trying to preserve its ecosystem and natural resources on which they depend for their livelihood.

And without going so far in search of our example, not too long ago I contábamos the controversy raised here same in Spain before the adoption of the construction of the Reservoir Biscarrués and complaints from environmentalists groups regarding its impact on vast areas of great ecological value, many of them belonging to the Natura 2000 network.

Having said all that, it is now time to know what are the alternatives proposed to these problems.
In view of the many dangers that large reservoirs of water intended for the hydropower can pose, there is one growing urgency to get the same energy, but without the construction of dams. Fortunately, this urgency has given rise to attractive concepts that could well point to the abandonment of the construction of dams in the future.

Of these new alternatives of Hydroelectric energy without dams I discussed in detail in our next article where we will see what are the most promising projects in search of a sustainable hydropower.

Biosolar: Solar panels with ecological materials

The solar energy is one of the most important renewable energy sources in the world. And solar panels are one of the most effective applications of solar energy. A new development makes it possible that these solar panels can be built with ecological materials, and so obtain a doubly positive for the environment..

Solar panels are essentially devices that trap solar energy and turn it into direct current of electricity. The work of solar panels is based entirely on the photovoltaic effect, hence the called photovoltaic panels.
This brief introduction is to explain the photovoltaic effect required to occur in elements semiconductors. Semiconductor materials mainly used are single-crystal silicon and polycrystalline silicon, which is found in each of the solar cells and are covered by glass or other materials to waterproof.
All these layers comprising solar panels are placed on a substrate or bottom layer usually contains materials such as polyester or Tedlar (a type of thermoplastic).

Solar panels can become a "greener" device, when they are made with organic materials. This is the proposal of the new BioSolar Backsheet Solar Panels.
 
These solar panels have a substrate (backsheet) are not built with chemical based products?in materials such as polyester and Tedlar, the most common currently. Instead this lower layer of the panel is made with a material completely ecological, obtained from castor seeds.

In addition to its ecological advantage, new panels of BioSolar substrate material shows a better thermal performance than conventional materials. The operating temperature is lower, which is also one of the highlights of this type of solar panels.

In general, this type of solar panels provides a better performance in terms of mechanical strength, electromagnetic properties, durability of long-term and adaptability to the climatic conditions. Apart from that, recycling of solar panels proposed by the manufacturer also makes this solar panel advanced and according to the demand of the contemporary world.

The almost any dependency BioSolar Backsheet solar panels towards the products of petroleum makes it - not only more suitable for environmental security – but also more economical.  Given that oil prices are increasing day by day, the greater stability of the value of its raw material and a lower cost of production also are points in favour.

One of the criticisms which this type ofecological solar panelsis that it requires a specific and precise monitoring in order to provide an optimum temperature of work during the process of generation of solar energy.

The ecological footprint

The ecological footprint is an indicator of the environmental impact generated by humans. Crudely, it is the effect we are producing on land based on inadequate, disrespectful and extreme exploitation of its resources.

The ecological footprint is expressed as the surface needed to produce the resources consumed by an average of a certain human community citizen, as well as the necessary to absorb the waste generated, regardless of the location of these areas.

We exploit the fields, forests, the sea... without leaving a space of time so you can regenerate itself, we do not give an only rest to land above the respect it is own economic good.

The calculation of the ecological footprint is based on the impact that makes each mode or way of life, i.e. communities of human on the planet by comparing it with its capacity.

This calculation is based on:
Certain materials and energy, as all existing products, have their origin in ecological systems are needed to produce any product.In turn, become need ecological systems to reabsorbed waste that we have created to obtain our product or to use it.Later, fill all infrastructures that occupy the space needed for productive ecosystems.The calculation of the ecological footprint is complex and its data are often underestimated the real impact of human activity by the lack of available information.

Here, we show you the data from the calculation of the ecological footprint that took place in a study of 2003 at the global level (Semarnat, 2007)

In it you can see which activities are those more ecological footprint have generated in the population. To understand the result, keep in mind that have spoken earlier, the bases of calculation:
47.5% Burning fossil fuels22.0% agriculture7.6% wood, pulp and paper.6.7% Fishing6.3% livestock3.6% Nuclear energy3.6% urban settlements2.7% LeñaLa obtaining ecological footprint has made it possible to compare two completely different worlds under one common denominator, its impact to the environment. It allows us to see two closely related realities:

The first observation allows us to see the way of life of the rich countries of the planet can not to expand to the rest of its inhabitants.

While the second, if we talk in terms of sustainable global economy, the wealthy minority would have to reduce their consumption and their standard of living because there would be no sufficient planet that everyone lived as a well-off European citizen because of the exploitation of the resources based on the availability of fossil fuels.

That leaves us in conclusion, that the much of the developed countries ecological footprint exceeds exorbitant way its own surface, given the resources and discharges of waste extraction in places far removed from its territory.



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The First Green Airport in Europe

Bournemouth, a tourist center in the South of England has become the first Green Airport in Europe which is "carbon neutral". The transformation took place as part of the programme of reconstruction of the airport which installed solar panels with a capacity of 74,98 kWp.

For this reason, Bournemouth airport has solar panels on roofs and parasols installed widely in the various sections of the site. There is also a separate sector which have installed solar panels with South-facing to take advantage of solar energy in the best possible way.
This was complemented by an improvement in the efficiency of facilities for indoor lighting, operating systems and other sources of consumption of energy. Set has been achieved in Bournemouth installations to be carbon neutral, making it the first Airport in Europe to achieve this.


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Treepods, trees artificial ecological

It is difficult to say that a tree is not ecological, when they are one of the greatest exponents of the nature to preserve the world, because that can recycle carbon dioxide from the air and turn it into clean oxygen, but the Treepods, a project designed by Mario Cáceres and Christian Canon, let do it also, but so much more efficient through the use of technology.

  
But in addition to cleaning the air, these Treepods include solar panels of photovoltaic energy and a system of kinetic energy which collects energy that occurs when using a weight of trees.

This energy that the trees produce is that feeds the process of filtration of the air, but also gives power to a small interior lights that give incandescent appearance to trees at night, allowing to reduce electricity consumption by night lighting.

Including, these trees are constructed from recycled materials and recyclable, and can be recycled in the future if necessary.

Urine, the fuel more ecological

It seems a joke But it isn't! As we titulábamos, urine can be used as ecological fuel in fact, more ecological than others in development or in use, and also more cheaper. So says a team of scientists from the University of Ohio (United States.)UU.) that have successfully transformed urine in biofuel for hydrogen cars.

Experiments have been made with human, animal and synthetic urine . The developed procedure consists of decomposed urine, to isolate the urea and ammonia. These components then applies a small amount of electric current, to obtain the hydrogen. This technique is - as explained - simpler and cheaper than the more widespread of the electrolysis of water which is usually to obtain hydrogen. When we talk about the performance of this biofuel derived from urine, experts estimate that every liter of final product provides a range of 40 km.

Although in the first place it is likely that the idea of driving a car with a fuel from urine find certainly unpleasant, it must not lose sight that is undoubtedly an excellent way to take advantage of a largely wasted natural resource . And in fact we are accustomed to other uses, such as excrement or urine itself - for example - in the fertilization of field... except So... Why not?

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Information via: BIODISOL

Image: universitam.com

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