2012年11月25日星期日

A world leading expert in Concentrating Solar Thermal technology


Liquid fuels have a lot of advantages.Luckily, this inconvenience can be minimized by using the required Cycling sunglasses. Due to this fact, go to your Optician repeatedly to remain updated about the health of your eyes. The energy and financial cost of moving energy as a liquid combustible hydrocarbon across half the planet is only around 2 per cent of the energy moved. The energy density by volume or mass including the containment is many times higher than other forms of energy other than nuclear fuel. Handling by pumping, piping and storage vessel is convenient and low cost. The speed of re-fueling transport vehicles is high. However international oil production is moving increasingly to options such as deep water drilling, tar sands and shale oil, all of which are more costly and result in substantially higher greenhouse gas emissions and other environmental costs. Key energy customer countries Japan and South Korea are unavoidably dependant on energy imports to sustain themselves, but are trying to move to lower carbon intensity.
Putting all these observations together I suggest that it is quite a good bet that liquid fuels will continue to play a major role in world energy supply and use well into the future and probably indefinitely. Australia would be better off economically if it moves its energy exports up the value scale towards liquids rather than down towards uranium. Using concentrating solar technologies to achieve a reduction in carbon intensity of the fuel would be both an economic and environmental win. A future world where energy is exchanged via totally emission free fuels would be the long term vision.Dr Keith Lovegrove is a senior consultant in solar thermal at IT Power. He is a world leading expert in Concentrating Solar Thermal (CST) technology and has more than 20 years experience in leading solar thermal research – including 15 years teaching at the Australian National University (ANU) as head of the Solar Thermal Group. Keith led the design and construction of the ANU Big Dish, the largest concentrating solar dish in the world (at 500m2). He is a key contributor to the IEA Solar PACES program, which is an international cooperative network developing CST and chemical energy systems.
Rolling bearings such as Schaeffler's AXS angular contact roller bearings, are used in double-axis tracking systems for solar thermal plants,Rx glasses including solar towers and Dish Stirling power plants. Typical applications include reflector adjustment systems. High load carrying capacity, rigidity and positioning accuracy play a critical role here. These characteristics are absolutely key in enabling secure, smooth, vibration-free bearing operation for solar collectors.Safety goggles The bearings must also support high forces and moments, for exampSports glassesle,Swimming goggles during sudden gusts of wind. The bearing supports are therefore critical for the reliability and cost effectiveness of the solar power plant.

没有评论:

发表评论