Renewable Energy : Geothermal Energy

When the water or lava comes up from the inner core from either a volcano or from a geyser, the temperature of the liquid it produces would be able to produce the same result we get from using fossil fuel to supply our energy. Geothermal energy could possibly be used to directly heat buildings or used to power turbines and thus generate electricity.

Moreover, the author continues citing the benefits of geothermal energy. An evident point mentioned in the article is that geothermal energy is a clean, renewable, and dependable energy that can run 24 hours a day, all year round. The author moves forward to mention other real life examples of countries that adopted the usage of geothermal energy. Countries such as the United States, New Zealand, Italy, Iceland, japan, Mexico,and Indonesia are using this kind of energy right now which is so important to prove his argument as real usage applications are

Geothermal Energy: it means the use of heated water and stream to power the power station for turning steam and heated water to electricity but it's expensive

For the 300 MW steam plant currently under analysis, steam is required at 723 K (450 0C), 10.34 MPa and a mass flow rate of 330 kg/s. The steam turbine extracts 312.5 MW of power at 84 percent adiabatic efficiency. With the generator loss at 4 percent, the electrical output is 300 MWe. A mechanical pump is used to pump the water into the heat exchanger where it absorbs the heat from the helium turbine exhaust before entering the steam turbine. Design point specifications are given in Table 4-1.

Being such a necessary and overused resource makes it a hotly contested subject and global issue. The United States is one of the biggest importers and users of oil in the world, which makes our need of it a major influence on several global markets. Our heavy reliance on dirty fuels, as well as every other industrialized country in the world, will lead to massive effects on the climate of our Earth. This in addition, has led to violence and war, particularly in the Middle East, over the ownership and distribution of oil and other energy resources, which in the end only serves to profit big oil industries. This problem will not stop or slow down, as the demand for energy will only increase as the world’s population and global economy continues to expand. For mainly these reasons, which will be handled more in-depth throughout this paper, the need for clean alternative energy is paramount and must be addressed within the foreseeable future should we otherwise suffer the consequences.

Many power plants still use fossil fuels to boil water for steam. Geothermal power plants, however, use steam produced from reservoirs of hot water found a couple of miles or more below the Earth's surface. There are three types of geothermal power plants: dry steam, flash steam, and binary cycle.

Geothermal energy is heat from the earth that is a clean and reliable source. Geothermal energy is converted to energy by steam that drives a generator and creates electricity. Geothermal energy contributes 12.5% of Costa Rica's energy. Costa Rica uses volcanic geothermal energy which comes from under the earth's crust, by extracting and cooling the steam it powers turbines that make electricity. An advantage of geothermal energy is that it is constantly generated and does not rely on the

Through the centuries, steam was found to be useful and in 1698 Thomas Savery patented and built the first ever steam engine. (Encyclopædia Britannica 2009; Hawley, 2012) The steam engine has been adapted to modern days as steam power was expensive and time consuming to service. Boiler rebuild were required and they constantly needed to be cleaned. It was expensive and kept these engines out of service for a large portion of time. (Feldman, 2014,) Today, 95 per cent of nuclear power plants use steam engines to generate power. Electricity is

The world right now is facing a major disaster if our habits don’t change. Fossil fuels dominate our energy demand and at our current rate this will remain true for quite some time. The World Energy outlook claims that by 2030 84% of our energy demands will be fulfilled by fossil fuels (Shafiee et al, 181). It is believed that we possess the reserves to meet our demands until 2030 (Shafiee et al, 181) but the cost will increase as time goes on. Fossil fuels are a non-renewable resource, meaning that once we run out of what’s currently available, we cannot replenish it. Our future energy needs are heavily dependent on a non-renewable and quickly depleting energy source.

Here in the US alone we consume nearly 6.844 Quadrillion Btu’s of energy, however most alarmingly less than 7% of our toll energy usage comes from Alternative energy resources. This leads to the edge of a dangerous presuppose as our current resources continue to dwindle and our future grows darker each day. It is estimated that there is less than 200 years of oil left in the reserves we currently have and with the population and the demand for oil increasing each year it could be here faster then we know it. As we continue to pour pollutants back into our skies, waters and lands each year our planet feels the effect each day.

One of the most hotly contested debates in today’s realm of environmental concern is how to secure energy for the maintenance and improvement of quality of life in the future. To date, humanity has been blessed with plentiful reserves of cheap crude oil, which can be refined into a multitude of items that make the lives of many so convenient—gasoline, heating oil, natural gas, plastics, and fertilizers. In some parts of the world, these technologies merely facilitate survival. But concern over what happens when these supplies dwindle is universal. Science has revealed that oil will not last forever at the rate it is being consumed. Therefore, alternatives must be developed that can provide sustainable

Students of history says that the principal utilization of geothermal vitality happened over 10,000 years back in North America. Individuals utilized water from hot springs for cooking, washing and cleaning.The first modern utilize started close Pisa, Italy in late eighteenth century. Steam originating from characteristic vents was utilized to remove boric corrosive from the hot pools that are currently known as the Larderello fields.The first geothermal plant in USA began in 1922 with a limit of 250 kilowatts. It delivered little yield. Nonetheless, because of specialized glitch must be closed down. It was until 1946 first ground-source geothermal warmth pump introduced at Commonwealth Building in Portland,

Volcanoes are wondrous formations on the earth. Humans are fascinated by them but are often very cautious about volcanoes. They see them as explosive, lava spewing mountains often causing natural disasters. These are just some of the effects of a volcano but plus side to it is that its energy can be harnessed. Energy that can be used from a volcano is Geothermal Energy. It is a clean, renewable energy which uses the steam produced from vents and hot springs near volcanoes. In this paper I am going to prove why Geothermal Energy is good for the environment and the society. Firstly I am going to discuss what geothermal energy is. Secondly, I will discuss the benefits of geothermal energy to the environment. Thirdly I am going to show how geothermal energy is beneficial to the society around its source. Lastly I will compare geothermal energy to other energy sources and show why geothermal energy is the way to go.

The pressure of the steam pushing against a series of giant turbine blades turns the turbine shaft. The turbine shaft is connected to the shaft of the generator, where magnets spin within wire coils to produce electricity.

First, coal is grinded down into thin powder by a pulverizer. The coal, mixed with hot air, is burned to heat up water. This creates steam, which powers a turbine to generate mechanical energy by spinning. Then, the turbine powers a generator to make electric energy. Steam cools down through a condenser and converts back into water. Water is heated up again, and the process repeats. These turbines usually waste 65% of coal’s energy in the form of heat into the surround environment. Newer designs are being constructed to make it more energy efficient. Steam engines work similarly according to this process.