SUGAR Volt Boeing puts vision to work in hybrid electric aircraft

first_img This is designed as a plane that will combine electric power with traditional fuel. Boeing sees it as an energy-efficient model for future commercial flying. The Volt concept is a hybrid propulsion system, using both jet fuel and batteries, a greater wingspan and open-rotor engines. It plugs in at the airport, charges its batteries up, and flies its mission. To enable portions of flight with low or zero emissions, electricity is used as a supplement or replacement. Dual-turbine engines would be powered by traditional jet fuel, and at cruising altitude, the system could turn over to electrical power. Adding energy-plus points, the SUGAR Volt’s longer wings allow for greater lift and the wings can fold when landed to accommodate airport gate space. Boeing noted that the fuel burn reduction and the ‘greening’ of the electrical power grid can produce large reductions in emissions of life cycle CO2 and nitrous oxide. Hybrid electric propulsion also has the potential to reduce noise. In the SUGAR study, the team reported that hybrid electric engine technology was a “game-changing technology” and a “clear winner” because it met NASA’s goals to reduce fuel burn, greenhouse gases, nitrous oxide emissions, noise and field length. Bradley recently said that Boeing is looking at a 2030 to 2050 time frame for the SUGAR Volt. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. (Phys.org)—Boeing has been working on a project that signifies the future of commercial air transportation. As the story goes, about five years ago at a conference on advanced aircraft technologies, posing questions on what the future of aircraft would look like, somebody stood up and said, “What about an electric airplane?” Almost everyone laughed. Boeing personnel did not laugh. Can we make an airplane that has batteries that actually works? They took it as a challenge, in designing a commercial plane capable of low-emission flights. Marty Bradley, technical fellow with Boeing Research & Technology, and part of its SUGAR (Subsonic Ultra Green Aircraft Research) project, has been talking about the company’s hybrid electric design, the SUGAR Volt, ever since. © 2012 Phys.org Earlier this year, Bradley said that “There is a lot of uncertainty as to how good batteries will be in 2030 to 2050. But we are quite encouraged to see battery companies starting to show real products with much higher performance.”On the larger scale, Boeing’s SUGAR team is working to identify future commercial transport concepts for NASA. The team is looking at various concepts and technology options for future years. These include hybrid battery-gas turbine propulsion, fuel cells, fuel cell–gas turbine hybrid propulsion systems, cryogenic fuels, cryogenically cooled engines and associated technologies, advanced batteries and open rotor/turboprop technologies.The SUGAR Volt, one of the concepts, shows potential to meet NASA’s environmental goals, as the SUGAR Volt will emit less carbon dioxide and less nitrogen oxide than aircraft in operation today.Hybrid is a concept making frequent news in aviation on other fronts. According to reports in November last year, Israel’s El Al Airlines planned to outfit 20 of their Boeing 737s with electric drive units that will provide power for the planes to taxi while on the ground. Several other companies were exploring similar ideas. Bloomberg this year reported that airlines continue studying new technologies and one study area, similarly, is taxiing. Equipment makers such as Honeywell are devising electric motors that can move jets, which would allow pilots to taxi without having to depend on main engines or diesel tractors. The first new aircraft with electric-taxi technology may be in production in as few as three years, according to Bloomberg Businessweek.center_img World’s first aircraft with serial hybrid electric drive Citation: SUGAR Volt: Boeing puts vision to work in hybrid electric aircraft (2012, December 30) retrieved 18 August 2019 from https://phys.org/news/2012-12-sugar-volt-boeing-vision-hybrid.html Explore furtherlast_img read more

Shiver me timbers Architects plan wood skyscraper for resident life

first_img Citation: Shiver me timbers. Architects plan wood skyscraper for resident life (2013, June 21) retrieved 18 August 2019 from https://phys.org/news/2013-06-timbers-architects-wood-skyscraper-resident.html Inspiration from Mother Nature leads to improved wood More information: www.cfmoller.com/r/Wooden-Skyscraper-i13265.html Explore further (Phys.org) —HSB Stockholm, a building society in Sweden, will be 100 years old in 2023 and to mark the date it is staging its architectural competition 2023. One entrant already gaining lots of attention is Berg | C.F. Møller, which has a proposed design of a 34-story solar powered skyscraper made of wood—well, not entirely of wood, but enough of wood to raise interest. Berg | C.F. Møller Architects are working in partnership with architects Dinell Johansson and consultants Tyréns on a skyscraper that would be seen for miles. The other two competing teams are Equator Stockholm with Mojang (Minecraft) and Utopia Architects with Rosenberg Architects. In general, the word “wood” makes some people nervous because of fears of fire. Architects who favor wood, however, argue that wood is safer than other types of building materials and can be more fire resistant than both steel and concrete. Earlier this year, an article in the Toronto Sun took note of what Geoff Triggs, building code consultants expert, had to say about the use of wood in high-rise construction. Rather than using small two-by-fours super-compressed mass timber is used to make very large panels. The compressed lumber is as strong as concrete but lighter. The compression process creates dense wood blocks that are difficult to burn. The wooden skyscraper is gaining attention as “green” news because of the wood factor proposed. A number of points in wood’s favor: C. F. Møller’s team noted how timber production releases less carbon dioxide than steel or concrete production, at a time where construction accounts for 30 to 40 percent of the world’s carbon dioxide generated from humans. Concrete and steel command a large part of the market, but wood-supporters note that wood is a lightweight, renewable material that can bear heavy loads in relation to its weight. Cost-wise, they say wood is cheaper to build and better for the environment than using steel-and-concrete for buildings. Wood costs less to transport due to its lightness, too. The C.F. Møller team is thinking in terms of a residential complex. While the building is made mostly of wood, it would have a concrete core. Wooden pillars, beams, walls, and ceilings in the plan are encased within a glass façade, with the walls, ceilings and window frames visible from the exterior through the large windows. Each apartment will have this glass-covered veranda, while the building itself will be powered by solar panels on the roof. © 2013 Phys.org This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

Study of biodiversity suggests a small increase in size of protected areas

first_imgCredit: CC0 Public Domain Understanding tourists’ preferences for nature-based experiences may help with conservation © 2017 Phys.org Research by Yale and the University of Grenoble documents where additional conservation efforts globally could most effectively support the safeguarding of species (some examples shown here) that are particularly distinct in their functions or their position in the family tree of life. Credit: Yale University/University of Grenoble Explore further Many countries throughout the world have set aside parcels of land to serve as havens for plants and animals—the hope is that by doing so, local wildlife can avoid extinction due to encroachment by human activities. Those that manage such areas tend to strive for rich biodiversity, which generally means providing for as many species as possible in a limited space. But the researchers with this new effort argue that conservation area managers might want to include species that represent evolutionary and functional diversity, as well. The first refers to species that are very unique, such as giant pandas, while the second refers to those that fill unique roles in their environment—beavers, for example, which build dams that create living spaces for many other species. But more importantly, they also suggest that setting aside just 5 percent more land area could result in large global gains in all three types of biodiversity.To reach these conclusions, the researchers looked at a catalog of approximately 15,000 protected areas around the globe and their native mammals and birds, breaking the regions down by the types of biodiversity they supported. They found that just 25 percent of species biodiversity could be accounted for—and it was less than that for the other types of biodiversity. Then they looked at the impact of increasing the size of protected areas, and found that an increase of just 5 percent could result in tripling all types of biodiversity globally. They suggest that additional studies conducted at a more localized level could reveal which types of species could benefit most from a small increase in land size. More information: Laura J. Pollock et al. Large conservation gains possible for global biodiversity facets, Nature (2017). DOI: 10.1038/nature22368AbstractDifferent facets of biodiversity other than species numbers are increasingly appreciated as critical for maintaining the function of ecosystems and their services to humans1, 2. While new international policy and assessment processes such as the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) recognize the importance of an increasingly global, quantitative and comprehensive approach to biodiversity protection, most insights are still focused on a single facet of biodiversity—species3. Here we broaden the focus and provide an evaluation of how much of the world’s species, functional and phylogenetic diversity of birds and mammals is currently protected and the scope for improvement. We show that the large existing gaps in the coverage for each facet of diversity could be remedied by a slight expansion of protected areas: an additional 5% of the land has the potential to more than triple the protected range of species or phylogenetic or functional units. Further, the same areas are often priorities for multiple diversity facets and for both taxa. However, we find that the choice of conservation strategy has a fundamental effect on outcomes. It is more difficult (that is, requires more land) to maximize basic representation of the global biodiversity pool than to maximize local diversity. Overall, species and phylogenetic priorities are more similar to each other than they are to functional priorities, and priorities for the different bird biodiversity facets are more similar than those of mammals. Our work shows that large gains in biodiversity protection are possible, while also highlighting the need to explicitly link desired conservation objectives and biodiversity metrics. We provide a framework and quantitative tools to advance these goals for multi-faceted biodiversity conservation.The researchers have created interactive web maps in the Map of Life project to accompany the study. They can be found at: mol.org/patterns/facetsRelated press release Journal information: Nature This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. (Phys.org)—A trio of researchers, two with Laboratoire d’Écologie Alpine in France and the other with Yale University has conducted an analysis of current parcels of land on our planet that offer protection for plants and animals and have found that just a few small increases in land allotment could produce a large positive influence on biodiversity on a global scale. In their paper published in the journal Nature, Laura Pollock, Wilfried Thuiller and Walter Jetz outline their study and why they believe that areas meant to protect biodiversity need to include more than just number of species. Citation: Study of biodiversity suggests a small increase in size of protected areas could reap large rewards (2017, May 25) retrieved 18 August 2019 from https://phys.org/news/2017-05-biodiversity-small-size-areas-reap.htmllast_img read more

New archive collates 100yearold voices from India

first_imgMahatma Gandhi’s speech caught on gramophone during his 1931 visit to England now shares space with classical music legend M S Subhalakshmi’s song, recorded when she was just nine, in a new virtual archive.The Archive of Indian Music (AIM), formally launched on 30 July, is an online compilation of vintage gramaphonic records of speeches, songs, plays etc dating as far back as 1902.‘This is a private initiative, a non profit trust where we source oldest rarest gramophone records like old ghazals, speeches of leaders, theatre recordings, folk music etc and digitise it for free access by laymen,’ Vikram Sampath, founder AIM said. Sampath, an engineer, historian, author and musician from Bangalore has till date digitised 1000 clips from a collection of 12,000 gramaphone recordings and a total of 200 artists on the site, a pilot project that began in May this year. Also Read – ‘Playing Jojo was emotionally exhausting’The archive includes digital version of first recording of Vande Matram clips, of Rabindranath Tagore reciting poetry as also recordings from early cinema, film songs by Mohammed Rafi and playback singers, folk music and devotional songs, ghazals, qawali as well as recordings of old plays etc.‘I first hit upon the idea while researching for a book he wrote on Gauhar Jaan, a singer from Kolkata, who was the first from India to record on gramophone in 1902,’ says Sampath.last_img read more

Turning pirouettes strengthening ties

first_img‘Over the years, the texture and content of Korea-India bilateral relations have undergone a sea change.  From the routine government-to-government engagement, the relations have expanded to more dynamic people-to-people interaction. In fact, people-to-people contact has now emerged as the centerpiece of bilateral cooperation, guiding the future contours of our bilateral relations. The visiting Korean troupes are sure to win the hearts of the Indian people by their superb performances, thus bringing our two peoples even closer,’ says Joon-gyu Lee, Ambassador of the Republic of Korea. Also Read – ‘Playing Jojo was emotionally exhausting’An original work based on a traditional Korean tale called Princess Nakrang and Prince Hodong, the Korean artistes will perform, Prince Ho-Dong (Adajio), Don Quixote (Grand Pas de Deux), La Bayader (Golden boy, Drum dance) and the Giselle Act. Prince Ho-Doung is the story of myth and legend, the work depicts the struggle between the people of Han represented by Nakrang and the Goguryeo represented by Ho-doung.La Bayadere is the story of love and betrayal setting place in an Indian Temple. La Bayadere meaning ‘an Indian Dancer’ in French has its setting in the Golden Empire of India. The highlight of La Bayadere is the dance Nikiya, the heroine. Don Quixote is a ballet based on Cervantes’ famous work. The ballet focuses on the love story between Basilio, a farmer and Kitri, the daughter of the tavern owner. Also Read – Leslie doing new comedy special with NetflixGiselle Act is the story in the forest past midnight; an eerie air permeates the ground, a gravestone floating above a cross. Suddenly, a white shadow flickers and then disappears. These white shadows are the Wilis, souls of young women who were betrayed and abandoned by their men.‘Just as Indians raved about K-pop Singer, Psy’s Gangnam Style last year, so do many Koreans rave about Bollywood movies, an indication of the good relationship we share in our daily lives’, said Yoo Jinryong, Minister of Culture, Sports and Tourism, Republic of Korea.last_img read more

IAEA chief hails Indias nuclear safety record

first_imgChief of IAEA Yukiya Amano on Friday lauded India’s commitment to the highest levels of safety and security standards and its record as a responsible nuclear power as he met PM Narendra Modi here. The DG also appreciated India’s contribution to the IAEA work and assistance to neighbouring and other countries in the peaceful and developmental aspects of nuclear science.last_img

2 held over fake blood reports

first_imgKolkata: Police have arrested two persons on charges of delivering a fake diagnostic report to a patient, where the test was not conducted in the first place. On the basis of the complaint lodged by one Azhar Alam Ansari, a resident of Rajabagan, police have arrested the accused from Nadial on Tuesday night. The arrested persons are Vijay Kumar Jha and Santosh Kumar Shaw. Police arrested Jha. During interrogation, Jha told police that he used to supply the blood samples and other details to Santosh Kumar Shaw. Santosh Kumar Shaw was then arrested last night. Blank slips of Medical Life Diagnostic Centre and City MED Diagnostic Centre were recovered. They used to give diagnostic test results without actually performing the tests. They have been remanded to 2-day police custody.last_img

Mango cultivation gains momentum in Paschimanchal areas

first_imgKolkata: Shantiram Mahato, state minister for Paschimanchal Unnayan Affairs department, inaugurated the two-day Mango Mela in Purulia on Sunday.It may be mentioned that mango cultivation in Paschimanchal areas like Purulia, Bankura, Jhargram, West Midnapore, Birbhum and East and West Burdwan districts is gaining popularity for producing Amrapali, Mallika, Himsagar and Alphonso varieties.Theses varieties of mango are the most suitable for this region and the quality of these varieties is far better than the conventional mango growing regions of west Bengal like Malda and Murshidabad. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedThese mango orchards have been popularised through Mahatma Gandhi National Rural Employment Guarantee Act (MGNREGA), by the Horticulture & Paschimanchal Unnayan Affairs department.More than 20 lakh mango saplings have been planted in this region, including Alphonso from Dr Balasaheb Sawant Konkan Krishi Vidyapith, an agriculture university situated in Ratnagiri district in Maharashtra, known as the Alphonso hub in the country.Scientists of Bidhan Chandra Krishi Viswavidyalaya, Nadia, compared the quality of the mangoes grown in this region with the same varieties grown elsewhere and it was found that the quality of these mangoes in this region is better, along with the shelf life of the fruits. Also Read – Naihati: 10 councillors return to TMC from BJPThe district administration has been organising the Mango Mela since 2014, to popularise mangoes of the region and provide a forum for export of these mangoes.SHG members attached with the orchards are getting the facility of selling their produce directly to the buyers.Mango export from this region is being done by the government to ensure more remuneration and profits to the farmers. 3 metric tonnes of Amrapali from Bankura has been exported this year to Dubai. Export to England and Australia is alsobeing tried.Mahato said: “This area was not known for mangoes, but now, the best mangoes are being produced in this region. The government is trying to set up more plantations with genuine quality mangoes and export them to ensure more profit for our farmers. If it is regularised, the economy of the area will be changed through mango cultivation.”last_img read more