New research from the Centre for Economics and Business Research (Cebr) and RenewableUK has found what many had already deciphered, that the presence of wind farms has “no significant effect” on the price of houses within 5 kilometeres of wind turbines. Both based out of the United Kingdom, Cebr and RenewableUK have added further backing
Originally Published on the ECOreport. A new Department of Energy map is a bit of an eye opener for those of us getting skeptical about the Golden State’s wind potential. According to an article in the Wallstreet Journal, wind power makes sense in Texas, but not in California, “which isn’t located in the ‘wind belt.’” That may be
DOE Map Helps Tell The Story Of US Wind Development was originally published on CleanTechnica.
New figured published by the UK Department of Energy and Climate Change (DECC) have shown that renewable energy is becoming more and more a player in the wider scope of national energy production, with wind energy generation up 40% and coal and gas production and generation both decreasing over the 2013 period when compared to
Wind Energy Generation Increases As Coal And Gas Decrease was originally published on CleanTechnica.
Originally published on Renewables International. By Craig Morris Did you know that Socrates gave lectures on solar architecture? But no, he’s not the one who invented it – that honor goes back at least to the Chinese, according to the update of John Perlin’s classic from the 1970s entitled “A Golden Thread.” The new version,
The switch from relatively dirty types of cooking fuels, such as biomass, to cleaner ones — along with improvements to kitchen ventilation — can greatly reduce the likelihood of developing chronic obstructive pulmonary disease (COPD), as well as improve other markers of lung health, according to the results of a 9-year study conducted in southern
Cleaner Cooking Fuels & Improved Kitchen Ventilation Lead To Far-Better Lung-Health, 9-Year Study Shows was originally published on CleanTechnica.
The first 3-D nanoscale observations of the structural changes that occur in the anode of a lithium-ion battery during operation (discharging and recharging) were recently achieved by researchers at the US Department of Energy’s Brookhaven National Laboratory. This achievement is expected to lead to a much greater understanding of such processes, and, as a result,
First 3-D Nanoscale Observations Of Structural Changes In Rechargeable Battery Material During Operation was originally published on CleanTechnica.
A high-energy biofuel — potentially capable of replacing or supplementing expensive missile fuels, such as JP10 — has been created via the use of a genetically engineered bacterium by researchers at the Georgia Institute of Technology and the Joint BioEnergy Institute.
For those wondering, the hydrocarbon in question, pinene, is actually exactly what it sounds like, a chemical produced by trees (especially pine trees). Kind of funny when you think about it — rockets powered by a chemical used by trees to repel insects produced by bacteria genetically engineered by humans. :/
Improvements to the process are still necessary in order for it to become economically viable (production boosted 26-fold), but given the great value placed on high-energy fuels by governments/militaries/etc, it’s very likely that we’ll hear more about this in the relatively near future.
The researchers also note the interesting fact that the biofuel could potentially help “facilitate (the) development of a new generation of more powerful engines.” Hmmm…
The Georgia Institute of Technology provides more:
By inserting enzymes from trees into the bacterium, first author and Georgia Tech graduate student Stephen Sarria, working under the guidance of assistant professor Pamela Peralta-Yahya, boosted pinene production six-fold over earlier bioengineering efforts. Though a more dramatic improvement will be needed before pinene dimers can compete with petroleum-based JP-10, the scientists believe they have identified the major obstacles that must be overcome to reach that goal.
“We have made a sustainable precursor to a tactical fuel with a high energy density,” stated Peralta-Yahya, an assistant professor in the School of Chemistry and Biochemistry and the School of Chemical and Biomolecular Engineering at Georgia Tech. “We are concentrating on making a ‘drop-in’ fuel that looks just like what is being produced from petroleum and can fit into existing distribution systems.”
Given the fact that JP-10 is itself a very limited fuel — only so much can be extracted from any single barrel of oil — the potential for it to be replaced by a (relatively) expensive biofuel is much greater than it is for something like gasoline. JP-10 currently sells for around $25 per gallon.
“If you are trying to make an alternative to gasoline, you are competing against $3 per gallon,” Peralta-Yahya continued. “That requires a long optimization process. Our process will be competitive with $25 per gallon in a much shorter time.”
More information on the research process:
Peralta-Yahya and collaborators set out to improve on previous efforts by studying alternative enzymes that could be inserted into the E. coli bacterium. They settled on two classes of enzymes — three pinene synthases (PS) and three geranyl diphosphate synthases (GPPS) — and experimented to see which combinations produced the best results.
Their results were much better than earlier efforts, but the researchers were puzzled because for a different hydrocarbon, similar enzymes produced more fuel per liter. So they tried an additional step to improve their efficiency. They placed the two enzymes adjacent to one another in the E. coli cells, ensuring that molecules produced by one enzyme would immediately contact the other. That boosted their production to 32 milligrams per liter — much better than earlier efforts, but still not competitive with petroleum-based JP-10. Peralta-Yahya believes the problem now lies with built-in process inhibitions that will be more challenging to address.
“We found that the enzyme was being inhibited by the substrate, and that the inhibition was concentration-dependent,” she explained. “Now we need either an enzyme that is not inhibited at high substrate concentrations, or we need a pathway that is able to maintain low substrate concentrations throughout the run. Both of these are difficult, but not insurmountable, problems.”
“Even though we are still in the milligrams per liter level, because the product we are trying to make is so much more expensive than diesel or gasoline means that we are relatively closer.”
The new findings were published in the journal ACS Synthetic Biology.
High-Energy Biofuel For Rockets, Missiles, And Other Aerospace Applications, Via Engineered Bacteria was originally published on CleanTechnica. To read more from CleanTechnica, join over 50,000 other subscribers: Google+ | Email | Facebook | RSS | Twitter.
BREAKING: Late this evening (8 pm EST, or tomorrow, March 31, at 9 am in Tokyo), something large and unpleasant will hit the fan about climate change. At a press conference in Yokohama, the Nobel Prize-winning Intergovernmental Panel on Climate Change will release its Fifth Assessment Report on impacts of human activities on current and [&hellip
The IPCC’s Blockbuster 5th Climate Assessment was originally posted on: PlanetSave. To read more from Planetsave, join thousands of others and subscribe to our free RSS feed, follow us on Facebook (also free), follow us on Twitter, or just visit our homepage.
A new prototype home that is heated and cooled entirely through the action of fermenting straw has been created by researchers at Japan’s Waseda University. It might sound like a strange idea — or perhaps even unbelievable — but the concept has actually been around for a couple of decades now, and has been utilized
New Prototype Home That’s Heated & Cooled Entirely By Fermenting Straw was originally published on CleanTechnica.
The EU’s MAGNETIDE project continues to move forward — 14 months into the projected 24-month development program, the gains are becoming apparent.
The project — which is intended to result in the development of a purpose-designed generator for wave energy extraction — has managed to reduce the cost of the system while increasing the efficiency by up to 30%. These improvements were achieved via the modification of the generator’s design, so that components manufactured using PIM, Powder Injection Moulding, could be installed.
“These generators use magnetic components that we are producing using PIM technology, which turns out to be more versatile when it comes to modifying the compositions and makes it possible to get the parts for a lower price,” states professor José Manuel Torralba, the researcher who is coordinating UC3M’s participation in the project.
This powder injection moulding has shown itself to be an available alternative to more-conventional approaches in the (relatively) fast manufacture of complex parts — as a paper the researchers recently published in the International Journal of Microstructure and Materials Properties has shown.
The press release from the Universidad Carlos III de Madrid – Oficina de Información Científica provides more:
Powder Injection Moulding is an advanced powder metallurgy technology that combines the advantages of plastic injection moulding and powder technology. It is similar to making bread in an oven but, rather than flour, it uses alloys of metallic powders that “bake” in moulds and produce milimetrically exact parts. In this case, the scientists are studying the best combination of metallic powders with a magnetic character (iron, silicon, cobalt, nickel…) in order to later inject them into a polymer plastic mould that will allow them to create complex parts that are difficult and expensive to produce mechanically.
“The great advantage of this technology is that once you design the material, by modifying the mould, it is easy to manufacture millions of pieces that are exactly the same, in a manner that is simple, fast and quite inexpensive,” Torralba explains.
The MAGNETIDE project is expected to wrap up next year, when the researchers are expected to have created the first prototypes of the new generators made with this technology. These generators — also potentially useful for other energy sources, such as wind — will then be tested in real-world conditions, in locations where there are strong tidal currents.
MAGNETIDE Project — Purpose Designed Generator For Wave Energy Technologies was originally published on CleanTechnica. To read more from CleanTechnica, join over 50,000 other subscribers: Google+ | Email | Facebook | RSS | Twitter.