Non Conventional Energy Sources By Gd Rai Book Pdf Download
Mandy Geise
Conventional sources of energy are the ones that are commonly used, and generally non-renewable sources of energy, which are being used since a long time. Examples of conventional sources of energy include oil, natural gas, coal, biomass, and electricity. The fossil fuels oil, gas and coal, provide more than 85 percent of energy consumed in the World as well as in Turkey. Conventional resources provide two-thirds of the country's electricity and almost all transportation fuels. Though conventionally sourced energy may have a lower initial cost than non-traditional energy sources such as solar or geothermal, the world's reliance on fossil fuels presents many challenges, including environmental damage, securing supply and resources and lack of sustainability. It is also becoming increasingly difficult to discover and exploit their new deposits.
Because fossil fuels are so valuable and they are not found everywhere, international politics is very much involved in producing and distributing fossil fuels. The dynamic world of conventional energy (focusing on oil, gas and coal energy) is a critical piece of the world energy portfolio. Our focus will be on recent trends, and perspectives on the future of conventional energy and how business interests are evolving to meet the interests and needs of new energy economies.
Electricity is another conventional source of power, which is playing a barometer of a nation's economic well-being. Availability of abundant electricity means unrestricted growth of industries, transport and agriculture.
Thermal-electric power plants, hydro-electric power plants, and nuclear power plants supply most of the electrical energy used in the world. These three methods of producing electricity are often referred to as conventional energy sources. This means that they are the more traditional or more commonly used sources of electrical energy.
The selection of electricity production modes and their economic viability varies in accordance with demand and region. Hydroelectric plants, nuclear power plants, thermal power plants and renewable sources have their own pros and cons, and selection is based upon the local power requirement and the fluctuations in demand. All power grids have varying loads on them but the daily minimum is the base load, supplied by plants which run continuously. Nuclear, coal, oil and gas plants can supply base load. Thermal energy is economical in areas of high industrial density, as the high demand cannot be met by renewable sources. These plants can also withstand variation in load and consumption by adding more units or temporarily decreasing the production of some units.
The huge challenge for energy policy is to enable energy supply to be secure, low carbon and affordable. The need for energy, together with the economics of producing and supplying that energy to the end user, are central considerations in power plant investment decisions and operating strategies. Inevitably, there will be a point at which higher efficiency and lower emissions come at a cost which cannot be justified. Where economic and regulatory conditions exist which shift this balance consistently in favour of higher efficiency and lower emissions, improvements become a normal part of running a competitive business. The trend over time has been towards improved power plant performance.
The development of supercritical and ultra-supercritical steam cycles, with progressively higher steam temperatures and pressures, combined with modern plant design and automation, provide significant potential for further efficiency improvements and the mitigation of CO2 emissions.
The fuel economy of medium- and heavy-duty all-electric vehicles and PHEVs is highly dependent on the load carried and the duty cycle, but in the right applications, all-electric vehicles maintain a strong fuel-to-cost advantage over their conventional counterparts.
Public charging stations are not as ubiquitous as gas stations. Charging equipment manufacturers, automakers, utilities, Clean Cities and Communities coalitions, states, municipalities, and government agencies are rapidly establishing a national network of public charging stations. The number of publicly accessible charging stations in the United States reached more than 53,000 in 2023, offering more than 137,000 charging ports, according to the Alternative Fueling Station Locator. Search for electric charging stations near you.
Electric and hybrid vehicles can have significant emissions benefits over conventional vehicles. All-electric vehicles produce zero tailpipe emissions, and PHEVs produce no tailpipe emissions when operating in all-electric mode. HEV emissions benefits vary by vehicle model and type of hybrid power system.
The life cycle emissions of an electric vehicle depend on the source of the electricity used to charge it, which varies by region. In geographic areas that use relatively low-polluting energy sources for electricity production, electric vehicles typically have a life cycle emissions advantage over similar conventional vehicles running on gasoline or diesel. In regions that depend heavily on conventional electricity generation, electric vehicles may not demonstrate a strong life cycle emissions benefit. Use the Electricity Sources and Emissions Tool to compare fuel-cycle emissions by vehicle type and state.
Check with your dealer for model-specific information about battery life and warranties. Although manufacturers have not published pricing for replacement batteries, some are offering extended warranty programs with monthly fees. If the batteries need to be replaced outside the warranty, it may be a significant expense. Battery prices are expected to continue declining as battery technologies improve and production volumes increase.
Energy development is the field of activities focused on obtaining sources of energy from natural resources. These activities include the production of renewable, nuclear, and fossil fuel derived sources of energy, and for the recovery and reuse of energy that would otherwise be wasted. Energy conservation and efficiency measures reduce the demand for energy development, and can have benefits to society with improvements to environmental issues.
Societies use energy for transportation, manufacturing, illumination, heating and air conditioning, and communication, for industrial, commercial, and domestic purposes. Energy resources may be classified as primary resources, where the resource can be used in substantially its original form, or as secondary resources, where the energy source must be converted into a more conveniently usable form. Non-renewable resources are significantly depleted by human use, whereas renewable resources are produced by ongoing processes that can sustain indefinite human exploitation.
Thousands of people are employed in the energy industry. The conventional industry comprises the petroleum industry, the natural gas industry, the electrical power industry, and the nuclear industry. New energy industries include the renewable energy industry, comprising alternative and sustainable manufacture, distribution, and sale of alternative fuels.
Energy resources may be classified as primary resources, suitable for end use without conversion to another form, or secondary resources, where the usable form of energy required substantial conversion from a primary source. Examples of primary energy resources are wind power, solar power, wood fuel, fossil fuels such as coal, oil and natural gas, and uranium. Secondary resources are those such as electricity, hydrogen, or other synthetic fuels.
Another important classification is based on the time required to regenerate an energy resource. "Renewable" resources are those that recover their capacity in a time significant by human needs. Examples are hydroelectric power or wind power, when the natural phenomena that are the primary source of energy are ongoing and not depleted by human demands. Non-renewable resources are those that are significantly depleted by human usage and that will not recover their potential significantly during human lifetimes. An example of a non-renewable energy source is coal, which does not form naturally at a rate that would support human use.
Fossil fuel (primary non-renewable fossil) sources burn coal or hydrocarbon fuels, which are the remains of the decomposition of plants and animals. There are three main types of fossil fuels: coal, petroleum, and natural gas. Another fossil fuel, liquefied petroleum gas (LPG), is principally derived from the production of natural gas. Heat from burning fossil fuel is used either directly for space heating and process heating, or converted to mechanical energy for vehicles, industrial processes, or electrical power generation. These fossil fuels are part of the carbon cycle and allow solar energy stored in the fuel to be released.
Fossil fuels make up the bulk of the world's current primary energy sources. In 2005, 81% of the world's energy needs was met from fossil sources.[4] The technology and infrastructure for the use of fossil fuels already exist. Liquid fuels derived from petroleum deliver much usable energy per unit of weight or volume, which is advantageous when compared with lower energy density sources such as batteries. Fossil fuels are currently economical for decentralized energy use.
Energy dependence on imported fossil fuels creates energy security risks for dependent countries.[5][6][7][8][9] Oil dependence in particular has led to war,[10] funding of radicals,[11] monopolization,[12] and socio-political instability.[13]
Fossil fuels are non-renewable resources, which will eventually decline in production [14] and become exhausted. While the processes that created fossil fuels are ongoing, fuels are consumed far more quickly than the natural rate of replenishment. Extracting fuels becomes increasingly costly as society consumes the most accessible fuel deposits.[15] Extraction of fossil fuels results in environmental degradation, such as the strip mining and mountaintop removal for coal.
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