Unit 5 Exercise 1 Wind Energy

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

Wind power captures natural wind and converts it into mechanical energy and then electricity. Wind energy is the fastest growing energy source in the world; aiming to produce 20% of its electricity by wind power by 2030. We started using wind power centuries ago with windmills, they pumped water, grounded grain and so much more. Wind turbines today are a much more evolved version of a windmill. They range in size at 80 feet tall and can power a single home. And a utility scale turbine can power hundreds of homes. It is a renewable, clean source of energy that doesn’t generate any greenhouse gases. It can possibly improve (or not) our lives at home and work.

Later, wind energy served mankind by energising his grain grinding mills and water pumps. During its transformation from these crude and heavy devices to today’s efficient and sophisticated machines, the technology went through various phases of development….The earliest documented design of wind mill dates back to 200 B.C. The Persians used wind mills from grinding grains during this period." (Sathyajith Mathew 2)

Thermal power has been used as a natural form of energy, but it has its advantages and disadvantages. The financial costs are extremely low due to no fuel needed to generate power. Even considering transport, geothermal energy is estimated to save 80

The generator turns rotational energy into electricity. At its essence, generating electricity from the wind is all about transferring energy from one medium to another.

A wind turbine is a machine that converts the wind’s kinetic energy into mechanical energy. If the energy is then directed by machinery it is called a windmill, but if the energy is converted into electricity it is a wind turbine. Wind turbines are old technology but used to meet new challenges. There are two main types of wind turbines: rotating on the vertical axis or on the horizontal axis. The horizontal axis is the most common. These three bladed turbines have the main rotor shaft and electrical generator

Wind power is still the most promising renewable energy in the year of 2013. The wind turbine system (WTS) started with a few tens of kilowatt power in the 1980s. Now, multi megawatt wind turbines are widely installed even up to 6–8 MW. There is a widespread use of wind turbines in the distribution networks and more and more wind power stations, acting as power plants, are connected directly to the transmission networks. As the grid penetration and power level of the wind turbines increase steadily, the wind power starts to have significant impacts to the power grid system. Therefore, more advanced generators, power electronic systems, and control solutions have to be introduced to improve the characteristics of the wind power plant and make it more suitable to be integrated into the power grid. Meanwhile, there are also some emerging technology challenges, which need to be further clarified and investigated. The global electrical energy consumption is still rising and there is a steady demand to increase the power capacity. The production, distribution and the use of the energy should be as technological efficient as possible and incentives to save energy at the end-user should be set up. The deregulation of energy has lowered the investment in larger power plants, which means the need for new electrical power sources may be very high in the near future. Two major technologies will play important roles to solve the future problems.

Wind energy is essentially the conversion of the kinetic energy from air molecules in motion to mechanical energy which is generally then converted into electrical energy. People have used wind power since 700 AD in

Wind energy described as the process by which wind is used to generate electricity. Wind is a part of renewable energy. Renewable energy is the one, which cannot be depleted when used. Globally, the use of power plants has increased, due to the overpopulation, urbanization since past years. Since then, renewable resources have played a vital role in maintaining balance worldwide in various forms. For instance, wind energy, geothermal energy, hydropower and other renewable energy resources help in balancing the environment. Nowadays, the leading problems such as climate change, melting of glaciers is leading to a change in the environment. Wind energy is one of the sources, which can replace the use of the non-renewable resources such as fossil fuels; oil and natural gas, hence take billions of year to replenish again, once finished. According to, the situation described in India, the burning of fossil fuels such as natural gas, oil and other non-renewable resources is increasing day by day, and the negative consequences linked in resulting in the rising of greenhouse gases, not only increasing the global temperature but also overusing the resources.

Geothermal energy is a kind of energy that provided by the heat of our planet, the Earth. The cost of geothermal energy is low, and it is reliable and friendly to the environment, but is limited to some specific areas. Recent technology development has greatly expanded the range and size of geothermal energy resources. Now the geothermal energy can be also used for applications such as home heating, which add use potential for the resource. Although, tapping geothermal energy will release some gas pollution which are originally trapped deep inside the earth, these emissions are much lower than those of fossil fuels. Therefore, geothermal energy is a kind of potential energy and may help to reduce emissions of greenhouse of the earth and of the pollution to the environment.

First energy source I would like to discuss is the solar energy. Solar energy generating method is a method of converting sunlight directly to the electricity through the system of panels or mirrors. When sunlight warms heat absorbing panels, they produce steam, which is

A wind turbine works the opposite of a fan. Instead of using electricity to make wind, like a fan, wind turbines use wind to make electricity. The wind turns a blade, which spins a shaft, which connects to a generator and makes electricity. Modern wind turbines fall into two basic groups, the horizontal axis and the vertical axis design.

The useful and super eco-friendly, and environmentally safe (for the most part), form of energy that is called Geothermal Energy has been used for thousands of years. The definition for Geothermal is “earth heat” so it is literally the heat naturally created by the earth that humans and other species have discovered to use to their advantage. The earliest known uses are located in china and are based since the 3rd century B.C. although at that time the energy was just used as bathing pools at specific hot springs, today and in earlier generations this energy of the earth has become an extremely useful and powerful tool for the populations of the world. Some of the first locations where this energy source

Magenn Air Rotor System (MARS) is one of the lighter than air wind turbine that rotates about horizontal axis in response to wind, thereby generating electrical energy at a lower cost. The generated electricity can be

I, SUSHANT JAIN, student of B.Tech (MAE) hereby declare that the project titled “WIND TURBINE” which is submitted by me to Department of ASET, Amity University Uttar Pradesh, Noida, in partial fulfillment of requirement for the award of the degree of Bachelor of Technology in Mechanical, has not been previously formed the basis for the award of any degree, diploma or other similar title or recognition.