Alternative Energy : Wind Bags And Compressed Air Energy Storage

As the global supply of fossil fuels becomes steadily lower, need is growing for new energy sources that are beneficial to the environment and cost-effective. Wind power is one solution to this need. Wind turbines require significant investment, but are cost-efficient in the long term. If construction of turbines is sufficiently increased, the wind may be able to in the future provide a very major portion of global energy.

One of the great parts about wind energy is that it has a large amount of positives to the environment and hardly any negative effects. Because wind energy uses the wind for the energy there is no emissions generated from the energy produced. It is estimated that the use of one million kWh of wind power can save around 600 tons of carbon dioxide emissions (Saidur, Rahim, Islam, & Solangi, 2011). Therefore, it is easy to see that the widespread use of wind power can help mitigate climate change. This is critical to help stop climate change and the United States is uniquely positioned to be the leader in curbing climate. When the United States starts heavily investing in alternative energy sources other countries will likely follow suit, which will be key to reducing global emissions.

Wind can play a major role in the solution to global warming. Constantly, the wind is blowing and is being wasted. Wind is also a domestic, unlimited energy source that produces no emissions, requires no fuel, and consumes no natural resources. Wind is relatively immune to inflation because it does not rely on any other fuel source. No single energy source can alone meet the USA’s electricity needs, and wind is making a steadily growing part to our electricity supply.

Wind energy is a clean, alternative source of energy that does not produce greenhouse gas emissions and can be produced domestically. While wind energy accounts for a small overall portion of the energy produced in the United States, the potential for wind energy is significant. Nevertheless, there are some obstacles that delay the widespread use of this technology, including intermittency of wind, cost, and public policies that deter their implementation.

To solve this problems compressed air technology (CAT) was invented, and again the problem in this is input power. The air may be freely available in the atmosphere , but it needs to be compressed to use and the power it needs for compression is electrical energy , which is also a non- renewable energy.

For many years we depend on fossil fuels to get the energy and power we need to survive. Without it, it would lead to widespread panic due to the reliance on electricity to communicate with others, stay cool or warm, or even to turn on our lights. However, there has been the start of new energy sources that could not only help the environment but can also be renewed. The top two forms of such a discovery have been the emergence of solar and wind energy. Although both solar and wind energy are potential ways to reduce the number of fossil fuels used, there are major differences in their production, cost, environmental concerns, and availability which can make one superior to the other (Clean Energy Partners 2011).

Wind energy is stored in many different ways. One way that a person might want to store their energy is through a battery. A battery is

We are facing an energy crisis on Earth. Burning fossil fuels are harming the atmosphere; this global warming and affects produces chemicals that hurt our body. People are starting to think about using alternative energy. Wind power would be our first choice, because it’s clean, inexhaustible and renewable. Today, wind power is mainly used in Europe. We believed wind power would be the main source of alternative energy for world use.

What makes any form of electrical generation efficient? Is it the cost per energy unit, or the acreage needed per produced energy unit, or the impact/s on the climate? The reality is all of those factors and many more go into it – and there are varying degrees of “yes” and “no” depending on which factors the analysis is based upon. Considering the finite reality of natural resources, fossil-fuel produced electricity will never be a permanent solution to electricity needs and shortages - but can wind power play a real role in replacing those fossil-fuel based power plants? The solution this paper will suggest is an educated effort at the best and most practical (and efficient) uses for wind power.

The world today is run by energy. Scientists are constantly thinking of new ways to create energy. The creation of energy might be the most valuable creation ever. Something that is even more valuable than energy is renewable energy. Renewable energy is any natural resource that can replenish itself naturally over time, as wood or solar energy; also called renewable energy, renewable energy resource, and renewable natural resource. The principle behind Wind Power is the conversion of kinetic energy of wind to electrical energy. The source of the power isn’t just the wind. An uneven heating of the earth’s surface by the sun with the pressure difference in the atmosphere creates the creation of wind. The

Wind turbine is a device that converts kinetic energy stored in wind to electrical energy using electrical generator. Before invention of electricity Windmill was used to convert energy of wind to rotational mechanical energy. In history we have seen many kind of drag and/or lift type of wind turbines. Currently mostly used wind turbines are three bladed Horizontal axis Wind turbine and Darrieus(or Egg-beater) type wind turbine. Majority of the modern wind turbine have can generate electrical power of 1.5 to 5MW [2]. We can define capacity factor as ratio of total wind energy extracted within a year to the total theoretical maximum power of a given wind turbine. Capacity factor depends on many factors but one on them is very low wind speed which is not enough to run a wind turbine. Wind speed increases at higher altitudes from the earth surface. Thus more energy can be extracted from the wind at high altitudes and in addition to that we have higher capacity factor because of more continuous winds. At 100m height estimated global wind power is about 230 TW [3]. We can get high amount of wind energy (80 GW as in [4].) at

Now-a-days the handling of “Electricity” has been increased rapidly. Due to this the “Fossil Fuels” are getting extinguished day-to-day. So we need to choose for an alternate source of energy that is Renewable Source. Among the Renewable Sources “Wind Energy” is one of them.

Energy conversion has been essential in every human activity since the prehistoric age. A basic extent of the evolution of society is directly associated with the changes in the fundamental sources of energy and its uses. Through the last 250 years, people have learned how to harvest and deal with energy in different forms to make work easier and live more comfortable. Nevertheless, this human activity is overloading the atmosphere with greenhouse gases emission, which make the temperature higher, trap heat and generates serious and harmful impacts on the environment and on climate. Therefore, the governments all around the world are making an effort to promote and develop renewable energy as the new main energy source.

Today society shares enthusiasm about the expansion and increased production of alternative energy to meet the global energy needs, rather than relying on the limited supply of fossil fuels. It is estimated, by the end of this century, the fossil fuels that sustain civilisation will be depleted. So to prepare for the new age of energy production, development of renewable energy sources such as wind power is very important.

Rapid consumption of non renewable fossil fuels as sources of energy has lead to depletion of these resources. So the price of petroleum resource has increased in the international market. A growing concern over their environmental effects has lead to research and development in the area of renewable energy to find an alternative source of energy for future. Wind energy which possesses the highest power density amongst various renewable energy sources, is one such source. [27].