The promise of green jobs and a clean energy future has roused the masses. But as Robert Bryce makes clear in this provocative book, that vision needs a major re-vision. We cannot - and will not - quit using carbon-based fuels at any time in the near future for a simple reason: they provide the horsepower that we crave. The hard reality is that oil, coal, and natural gas are here to stay. Fueling our society requires more than sentiment and rhetoric; we need to make good decisions and smart investments based on facts. In Power Hungry, Bryce provides a supertanker-load of facts while shepherding listeners through basic physics and math. And with the help of a panoply of vivid graphics and tables, he crushes a phalanx of energy myths, showing why renewables are not green, carbon capture and sequestration won't work, and even - surprise! - that the U.S. is leading the world in energy efficiency. He also charts the amazing growth of the fuels of the future: natural gas and nuclear. Power Hungry delivers a clear-eyed view of what America has in the tank, and what's needed to transform the gargantuan global energy sector. 1. Language: English. Narrator: Ax Norman. Audio sample: http://samples.audible.de/bk/adbl/002223/bk_adbl_002223_sample.mp3. Digital audiobook in aax.
Emission Control of Coal Power Plants during Load Change in The Grid ab 49.9 EURO Integrating renewable energy into the power grid required technical solutions to coal power plants emission control
In this Book, the exergy analysis of the 50MW coal based steam turbine cycle is presented. The turbine, which is installed at Korba Thermal Power Station, Korba East, C.G. is working on regenerative Rankine cycle. The exergy analysis of turbine and its component like- LPH-I, LPH-II, LPH-III, LPH-IV, Deaerator with FST, HPH-V, HPHVI, HPH-VII is done at 50MW unit load for both the condition design and working. The exergy lost in the turbine 12.21MW for present working condition compared to design condition 11.364MW. Another component which needs attention is High Pressure Heater-I where exergy lost is (1.516 MW) and Low Pressure Heater-IV where exergy lost is (1.189 MW). All other components also contribute toward the exergy destruction as compared to design value, which is tabulated in table-6.1 (exergy destroyed) and table-6.2 (second law efficiency). First and second law efficiency for described cycle also calculated.
Industrialization, population explosion and urbanization applies load on present reticent fossil fuels bringing on an inevitable state globally leading to "Energy Crisis". Natural resources like coal and petroleum are restricted and soon will be exhausted with raising energy insist which will influence any nation's economy and will hold up its development. Microbial fuel cells (MFCs), a device in which microbes act as catalyst in degrading the organic matter to generate electricity by oxidizing simple compounds such as glucose or complex organic matter in wastewater, represent a new and promising approach for generating power. Given the world's limited supply of fossil fuels and fossil fuels' impact on climate change, the potential of MFC technology's to create renewable, carbon-neutral energy has generated tremendous interest around the world.
The book describes safe and optimum blasting patterns for ringhole and induced blasting in blasting gallery method of underground coal mines. It has been divided into two parts, viz. ringhole blasting in coal and induced blasting in stone roof. Several mathematical models developed on the basis of extensive field investigations, are described for determining blast design parameters. Model test blasts in concrete blocks of known strengths are also given to ascertain the effect of decoupled charges on fragmentation. Artificial Neural Network (ANN) is also introduced to train different blast design parameters and other important factors. Monitoring of ground vibration, blast-fumes, strata load and roof convergence are also considered for safety of underground workings. A new induced blasting pattern namely Staggered Ring Breakage Method (or SRBM pattern) is prescribed for effective induced caving of overhanging roof.
High temperature corrosion problem in coal based thermal power plants has been matters of concern since the very early days of using the combustion of coals to raise steam to generate electricity. The problems could be separated into water wall corrosion, typically at temperatures in the range 350-450ºC and super-heater and re-heater corrosion, typically at metal temperatures in the range of 500-650ºC. Boiler tubes of coal fired thermal power plant subjected to prolong exposure at elevated temperature loose their load bearing capacity. The corrosion damage at inner and outer surface is responsible for reduction in wall thickness. In service water tubes from FBC boiler after a service life of ten years were collected. Failed tubes from FBC boilers were thoroughly investigated by visual inspection, cross-section and axial measurement, micrography and identification and characteristics of scale by XRD analysis to find the cause of failure. Main cause of failure was found to be corrosion with Fe2O3 as the main corrosion product. Other causes of boiler tube failure were short term overheating, erosion, decomposition of perlite into ferrite.
In recent years, fly ash is a subject of worldwide concern due to considerable environmental importance. It has been recognised that use of fly ash in stowing or backfilling of mines is an attractive solution to its disposal problems. Characteristics of fly ash and its response to imposed load must be studied beforehand for its effective utilization in stowing. This research work presents the physico-chemical characterization of fly ash of two thermal power stations located in the eastern part of India utilizing Talcher coal as fuel for power generation to assess their suitability for stowing in underground coal mines. An effort has been made to enhance the settling of fly ash particles and water drainage from the hydraulically stowed pond ash using polymeric flocculant. Besides, the geotechnical properties, viz. the compaction and consolidation properties of the fly ash are studied in this research. Lastly, the competency of stowed pond ash in taking load of the overlying strata has also been predicted. This research will be useful for the mining professionals, researchers, and students as a guide to assess the suitability of fly ash for stowing and help in its bulk utilization.
Chervonograd mining region is the main coal-mining region of the Lviv-Volyn basin (Ukraine) with the most environmentally dangerous technogenic load. Consequently the research of ecological and trophic groups of microorganisms from technologically altered areas as well as their relationships are extremely topical. Exploring microorganisms properties are reasonable for new technologies creation to protect the environment from dangerous pollutants both provide the development of new scientifically based principles of environmental protection. Due to this research of coal pits waste heaps microbiota was conducted. Different groups of microorganisms were selected and the dependence of their number both on the gangue, place of sampling, existence of vegetation, and soil humidity was shown. On purpose to decrease ph value of gangue coal ash from Dobrotvir TPP to waste heaps gangue in vitro and in vivo was applied. Therefore acidity value of gangue samples before and after coal ash applying was conducted. Coal ash impact on microorganisms number from different groups was established.
South Africa is faced with severe electricity shortfalls whilst being considered as one of the world's highest emitters of green house gases. Additionally the cost of electricity is rapidly rising while unemployment is on the increase and household incomes are reduced. The country is endowed with abundant sunshine, which could be used to alleviate some of the challenges. This book describes how a consumer generating electricity using a photovoltaic system can push back excess electricity into the utility grid and distribute this energy to areas that are in demand hence reducing the pressure of load demand. Thomas Edison, once said: "I'd put my money on the sun and solar energy. What a source of power! I hope we don't have to wait 'til oil and coal run out before we tackle that." Gathering that this quote was a realization of a bona fide inventor approximately 79 years ago, South Africa has the available resources that will allow for exploitation of solar energy. This book ventures into: definition of net metering,the current situations of South Africa while simulating a proposed system that displays a definite decrease to the consumers' electricity bill.