... Fahrenheit (80°C), as they baked in the desert sun. Due to the temperature sensitivity of the pho- tovoltaic cells, their output was markedly hobbled across the board, right at the time they should have ... Seductive Futures Part I Seductive Futures 27 for example, to convince motorists that the sparkling arrays atop filling stations somehow make the liquid they pump into their cars less toxic. The ... Illusions 5 Solar Cells and Other Fairy Tales energy to a minimum. The economic comparison with conven- tional energy sources is certain to receive a further boost as the environmental and social...
Ngày tải lên: 16/03/2014, 22:02
ENERGY FOR THE FUTURE pdf
... face the energy supply challenges of the future and the effects these will have on growth and the environment [57], and follows an EC- Green Paper on European strategy for the security of energy ... increase in energy demand per year. No one source will be able to supply the energy needs of future generations. In Europe, about one third of the energy produced comes in the form of electric energy, ... plants and 14.7% from renewable energy sources. Although the contribution from renewable energy sources has grown significantly since the beginning of the 1990s, the demand for electricity cannot...
Ngày tải lên: 27/06/2014, 14:20
... increase in energy demand per year. No one source will be able to supply the energy needs of future generations. In Europe, about one third of the energy produced comes in the form of electric energy, ... plants and 14.7% from renewable energy sources. Although the contribution from renewable energy sources has grown significantly since the beginning of the 1990s, the demand for electricity cannot ... other renewable energy sources (hydroelectric, wind, geothermal) will have to be increasingly exploited. According to the “World Energy Outlook, 2004” of IEA [16] both energy demand and energy- related...
Ngày tải lên: 08/08/2014, 15:21
A position paper of the EPS Energy for the Future phần 2 ppt
... reactions in the earth’s atmosphere induced by the intense flux of cosmic radiation present in the solar system, enters the biosphere and the food chain of all living beings. Furthermore, the bones ... in this case the extremist threat has no connection with the peaceful use of nuclear technology. As any energy source nuclear energy generation is not free of hazards. The safety of ... rationally on the basis of scientific findings and on open discussion of evidence and in comparison with the hazards of other energy sources. 4 Fuel cycles Most of the reactors in...
Ngày tải lên: 08/08/2014, 15:21
A position paper of the EPS Energy for the Future phần 3 potx
Ngày tải lên: 08/08/2014, 15:21
Photovoltaic Cells: Energy Source of the Future.
... the tropics, where there is plenty of sunlight. The photovoltaic cell has another very important advantage. It is a clean source of energy. The fossil fuels that we use today are the main source ... is already an important source of energy. In fact, it seems almost like magic. The photovoltaic cell changes sunlight directly into energy. Solar energy – energy from the sun – is clean, easily ... exist because of the sun. Obviously, we can’t wait million years for more fossil fuels. The photovoltaic cell gives us ability to produce energy directly from the sun. The sun’s energy can be...
Ngày tải lên: 08/11/2013, 01:15
Tài liệu How Open Is the Future- Economic, Social & Cultural Scenarios Inspired by Free & Open-Source Software (Crosstalks) pdf
... during the diffusion process. Nevertheless, the basic assumptions of the diffusion model are the same for both the techno-scientifically deterministic and the socially deterministic variants: on the ... protagonists and antagonists in these news reports. On one side we see the hacker programmers and their spokesmen, creating and advocating open source. On the other we witness the established ‘powers ... dubbed the Slashdot effect’: the sudden increase in the number of visits to a mainstream media website when the Slashdot community debates the site in question. But the discourse on open source...
Ngày tải lên: 16/02/2014, 23:20
Energy Efficiency – The Innovative Ways for Smart Energy, the Future Towards Modern Utilities docx
... loads to the normal operation on their feeders. Figure 10. The load management control for avoiding the peak period. Energy Efficiency – The Innovative Ways for Smart Energy, the Future ... one which the main the spaces had to be naturally ventilated, being these the Operational Support Building and Utilities Centre, and the other where the artificial control of the thermal conditions ... shading. On the other hand, when the wind speed is higher, the hours in thermal comfort raise to 67.5% of the time in the spots with direct solar irradiance, increasing to 98% of the time when the...
Ngày tải lên: 23/03/2014, 15:20
Energy Options for the Future* ppt
... the reference case, with the mean USGS data, the Rest of the World (ROW) conventional oil g Fig. 14. Fig. 15. The average growth of oil use in the world is 1.9%/yr. 8 1Energy Options for the Future Simpo ... energy resources, Korea imports 97% of its energy. The cost of energy imports, $37B in 2000 (24% of total imports) was larger than the export value of both memory chips 6 9Energy Options for the ... expected. Energy Sources Fossil Fuels The global resources of fossil fuels are immense and will not run out during the 21st century, even with a significant increase in use. There are sample resources...
Ngày tải lên: 27/06/2014, 14:20
ENERGY EFFICIENCY – THE INNOVATIVE WAYS FOR SMART ENERGY, THE FUTURE TOWARDS MODERN UTILITIES pdf
Ngày tải lên: 29/06/2014, 12:20
The future of English
... change than others. The complex inter- action between these factors means that it is perfectly possible that there will be widespread shifts in the way languages are used in the future. The Future ... have become engulfed by the The global media 46 The Future of English? Not so long ago, the media industry was bound by the territorial limits of the nation state. Today, the media is an international ... country: The question now occurs; ought the Americans to retain these faults which produce innumerable inconveniences in the acquisition and use of the language, or ought they at once to reform these...
Ngày tải lên: 05/11/2012, 16:27
The future of English 2
... such as the Internet, are changing the way the world’s citizens communicate and the way organisations operate. But the demography of the Internet is changing rapidly and the experience of the last ... have become engulfed by the The global media 46 The Future of English? Not so long ago, the media industry was bound by the territorial limits of the nation state. Today, the media is an international ... the future development of English in the world is the ‘outer circle’ of those who speak it as a second language. English often plays a special role in their lives and the fate of English in the...
Ngày tải lên: 05/11/2012, 16:27
Unit 8- Life in the future
... What is the name of the planet where we are living on? Life in the future Unit 8 What helps you use Internet? Advantages Disadvantages 4. What are the most important ... they? Labour-saving devices 2. Why, according to pessimists, will the security of the earth be threatened? The security of the earth will be threatened by terrorism as terrorist groups will ... What will life be like in the future, according to optimists? People will be living in much cleaner environment, breathing fresher air and eating healthier foods. They will also be better...
Ngày tải lên: 27/07/2013, 01:26