ScienceDaily: Energy and Resources News |
- The power of salt: Power generation from where river water and seawater meet
- Asian inventions dominate energy storage systems
- Bubbling down: Discovery suggests surprising uses for common bubbles
- Exporting U.S. coal to Asia could drop emissions 21 percent
- Bionic liquids from lignin: New results pave the way for closed loop biofuel refineries
| The power of salt: Power generation from where river water and seawater meet Posted: 20 Aug 2014 08:05 AM PDT Where the river meets the sea, there is the potential to harness a significant amount of renewable energy, according to a team of mechanical engineers. The researchers evaluated an emerging method of power generation called pressure retarded osmosis (PRO), in which two streams of different salinity are mixed to produce energy. In principle, a PRO system would take in river water and seawater on either side of a semi-permeable membrane. Through osmosis, water from the less-salty stream would cross the membrane to a pre-pressurized saltier side, creating a flow that can be sent through a turbine to recover power.  |
| Asian inventions dominate energy storage systems Posted: 19 Aug 2014 12:53 PM PDT In recent years, the number of patent applications for electrochemical energy storage technologies has soared. According to a study, the largest volume of applications is submitted by developers of lithium batteries. The study offers a first differentiated analysis of which technologies will be viable in the exit from fossil-fuel energy. European and US companies are falling behind economically, as Asian companies apply for a substantially higher number of patents.  |
| Bubbling down: Discovery suggests surprising uses for common bubbles Posted: 19 Aug 2014 09:59 AM PDT In a finding with scientific and industrial applications, researchers find that bursting bubbles can push tiny particles down into a liquid as well as up into the air.  |
| Exporting U.S. coal to Asia could drop emissions 21 percent Posted: 19 Aug 2014 08:30 AM PDT Under the right scenario, exporting U.S. coal to power plants in South Korea could lead to a 21 percent drop in greenhouse gas emissions compared to burning it at less energy-efficient U.S. plants. Other emissions, including sulfur dioxide, nitrogen oxide and particulate matter, could also drop. But this success, researchers say, depends on which fuel source the coal replaces in South Korea, and which fuel is used to replace it in the U.S.  |
| Bionic liquids from lignin: New results pave the way for closed loop biofuel refineries Posted: 18 Aug 2014 12:25 PM PDT Bionic liquids -- solvents made from lignin and hemicellulose, two by-products of biofuel production -- show great promise for liberating fermentable sugars from lignocellulose and improving the economics of biofuels refineries.  |
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