Solar space heating, cooling and hot water supply systems. Volume 2. Passive system and energy conservation in buildings. Solar industrial process heat and solar thermal applications. Biomass and agricultural applications.
Wind, photochemical energy conversion, OTEC and other renewable energy sources. Volume 3. Heat pump and energy storage. Socio-economic aspects, policy, standardization and national section reports. Solar energy technology for developing countries. Solar radiation and natural energy resources.
Materials for solar energy utilization. Rapporteur session, workshops, forums reports and closing addresses. Authors index. These proceedings include papers on all aspects of solar energy.
The conference had a special emphasis on photovoltaics, reflecting Japanese expertise in that field. As in previous conferences, the largest category of papers concerned solar thermal applications. There was also a great deal of interest in the vital issues raised concerning solar energy and developing countries. The keynote paper, on global environment and solar energy, was presented by Professor Z Uchijima. We are always looking for ways to improve customer experience on Elsevier. More reading. Packed with stock ideas and investing advice, it is essential reading for anyone looking to build and grow their wealth in the years ahead.
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Is Nuclear Power A Renewable Or A Sustainable Energy Source?
The Motley Fool June 18, Clean energy. Recently Viewed Your list is empty. Thank you for registering with Physics World If you'd like to change your details at any time, please visit My account. Alaina G Levine talks to Charles McCombie , an independent consultant on developing safe and secure nuclear waste disposal facilities, about his career and the latest thinking in nuclear waste science and technology.
So I chose to go into nuclear energy after graduating. This was the s, a time when there was increasing opposition to nuclear energy, and I observed that part of the opposition stemmed from perceived issues in the radioactive waste management area. After a while, I became the scientific and technical director, and that was exciting because I think of myself as a generalist, and the radioactive waste management field is incredibly interdisciplinary.
By the end of my time at Nagra, I had been working with civil engineers, materials scientists, geophysicists, hydrogeologists and seismologists. I was also involved in public communication.
Securing public health forever with clean energy | France | Al Jazeera
With time I have come to agree that the biggest challenges in radioactive waste management are more social than technical and scientific. Radioactive materials produced in a nuclear reactor are very hazardous and, more importantly, they are hazardous for a very, very long time. So you have some materials you want to isolate from any potential human contact for , years or more.
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People had never thought in these timescales before, and the scientific community has only recently started to think about the consequences of technologies extending to these timescales. This presents a totally different time perspective.
You make a solid waste matrix that is extremely resistant to any kind of corrosion or dissolution. The spent fuel is in the form of small ceramic pellets, and these have been in the reactor at hundreds of degrees for several years. They are very tough. You can dispose of these directly or else reprocess them to extract the radioactive nuclides, which are then mixed in a melter with glass so that you end up with these cylinders of black glass with the radioactive materials embedded in them.
According to the best predictions that scientists can make, this glass takes more than 10, years to dissolve. You encase this glass in a stainless-steel sheath and put it in a copper container. Underground, where there is very little oxygen, copper acts like a noble metal, so these containers can last for more than 10, years. The container goes into the repository at a depth of some hundreds of metres in a hard rock like a granite, a clay or salt. There it is surrounded by another barrier, which is often a special water-tight material called bentonite clay, that separates it from the host rock.
The most physics-oriented option is transmutation.