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Pakistan vs Bangladesh tour start with the ODI series on 17th April in Mirpur followed by 2 ODIs on 19th and 22nd of April on same venue.Both teams will then play the only T20 that will also be hosted in Mirpur on Friday 24th of April. Watch the best live coverage of your Favorite sports: Football, Golf, Rugby, Cricket, Tennis, F1, Boxing, plus the latest sports news, transfers & scores. Star Sports provides live coverage of cricket, including live video and match highlights, video scorecard, social commentary, in depth statistics and more. Doesn't mean that they can not be involved in engaging, difficult publishing pursuits, because preschool pupils don't produce fluently. Pakistan and Bangladesh will play 8th ODI of Asia Cup 2014 on 4th March 2014 at Shere Bangla National Stadium, Mirpur. Oval, Pakistan and England are playing the test series, which is comprised of 4 test matches. Super-efficient geared turbofans like the one shown here during assembly of a Pratt & Whitney PurePower engine are one of many strategies currently being tested to help commercial aircraft become more fuel efficient. A half-mile per gallon might seem like dreadful fuel economy, but for vehicles carrying hundreds of passengers at high altitude, it marks a huge advance in efficiency. Air traffic worldwide is increasing so rapidly that global carbon dioxide emissions from aviation, which now represent just 2 to 3 percent of all CO2 pollution, could jump as much as 500 percent by 2050, according to one forecast. That's why the aviation world is looking at technologies, shapes, and materials that would transform flight far more dramatically than the advances embodied in Boeing's 787 Dreamliner, which before it was grounded in January was one of the world's most fuel-efficient commercial airliners. Boeing also relied on a powerful lithium-ion battery so it could replace some mechanical components with electronics to cut the plane's weight.
While the Dreamliner moves closer to retaking the skies, here are five new technologiesa€”including one that will debut within monthsa€”that could soar far higher in fuel efficiency.
Connecticut-based engine-maker Pratt & Whitney, a division of United Technologies, tried a radical approach for making turbofan engines more efficienta€”adding a gear. The use of the "blended-wing" design seen here on this Boeing X-48C Hybrid Wing Body demonstration aircraft, when used with lightweight materials, could improve aerodynamics on commercial airliners. While Pratt opted for a major design change to improve jet engine efficiency, other researchers are focused on materials, especially those that would allow for hotter combustion. Some engine parts, including turbine blades, have ceramic coatings, but it's not an ideal solution because the coatings can spall off, and they also reduce the blades' efficiency, Ritchie says. An engine component developed for the Reaction Engine Skylon space plane above could also be used to boost the efficiency of current plane engines. There are still many unknowns about composite ceramics, including how best to make them and improve their properties. Ritchie predicts that within five to ten years, commercial jet engines with a significant number of parts composed entirely of ceramic composites will be in use, allowing engines to run hotter by several hundred degrees Celsius.
Could changing the shape of the fuselage, the iconic tube-like central body of an aircraft, make a difference in fuel economy?
Wahls reckons the double bubble would be 60 to 70 percent more efficient than current passenger jets, although those estimates are based, in part, on assumptions that the materials and structures of choice will, by then, be stronger and lighter.
A more detailed assessment of the double bubble potential will be developed later this year, when a prototype is to be tested in a wind tunnel at the NASA Langley Research Center in Virginia. Boeing's concept is nicknamed SUGAR, for Subsonic (slower than the speed of sound) Ultra Green Aircraft Research.
For the past six years, in a flight test project that ended just this month, NASA and Boeing have been conducting aerial research on the concept using a drone, Boeing's X-48 remotely piloted blended-wing aircraft.
NASA says that, working with Boeing, it has devised a method to manufacture a 777-size blended-wing plane that would be at least 50 percent more efficient.


While the concepts from other NASA-led projects, the double bubble and SUGAR planes, are unlikely to take to the skies anytime soon, blended-wing jets could become commercially viable within a few years, says Wahls. Since the retirement of the Concorde in 2003, there have been no civilian aircraft in operation that fly faster than the speed of sound (Mach 1).
Reaction says its Sabre engine, which would operate like a jet engine in the atmosphere and like a rocket in space, could fly far faster than today's military supersonic jets, which are limited to Mach 2.45.
So Reaction has developed a heat exchanger, a pre-cooler, that has a spiral matrix of tubes, each with a wall thickness of only 27 microns, to keep it lightweight. The tour will also involve two test matches with first Test being played at Khulna on 28th April and 2nd in Mirpur on 6th of May. The Dreamliner uses 20 percent less fuel per mile than the similar-size Boeing 767, thanks mainly to improved aerodynamics and the use of lightweight composite materials. But two nasty battery incidentsa€”one overheated on a runway in Boston, while another caught fire, forcing an emergency landing in Japana€”led to the grounding of all 50 Dreamliners in operation. Federal Aviation Administration approved the modifications, and the Dreamliners are expected to be back in the air soon.
The resulting fan-drive gear system engine, more than a decade in the making, can cut fuel use by up to 16 percent. Honeywell years ago used geared engines for very small private jets, but never advanced the technology.
In fact, one of the primary ways engine-makers have improved jet efficiency so far has been finding ways to burn the fuel and air mix inside turbofan jet engine combustors at hotter temperatures, while developing nickel-based alloys that can withstand the heat. The bottom line: The technique allows the engines to use less fuel for the same amount of thrust as a conventional aircraft.
The MIT concept emerged from a project that NASA initiated in 2008, challenging engineering teams to restyle jetliners to use considerably less fuel.
In SUGAR, wings sit atop the fuselage and are held in place with struts fastened to the body's undercarriagea€”like small, single-engine Cessnas. But the cigar-shaped fuselage with which we're all familiar is easier to design to withstand outside forces while maintaining cabin pressure. Working with the unmanned aircraft allowed the researchers to address issues such as how to transform the airframe so it does a better job of shielding engine noise from the ground, an improvement that would be key for gaining acceptance for such aircraft in communities near airports.
Strong, but lightweight, carbon-composite rods would be used for the wing's structural skeleton.
But Britain's Reaction Engine aims to build Skylon, a space plane that would reach speeds of Mach 5 and bring any destination on Earth to no more than four hours away. Reaction says the exchanger could be installed inside current subsonic engines to make them 5 to 10 percent more efficient. You can watch live streaming of Pakistan vs Bangladesh 8th ODI match of Asia Cup 2014 on following sports tv channels PTV Sports, Geo Super, Star Cricket, Ten Sports, Rishtey TV and Colors TV. Boeing has taken steps to rewire the batteries to prevent them from overheating, and will also encase them in heavy-duty steel boxes that vent outside the aircraft.
But they also use their fans to push slower air around the outside of the engine, so it mingles with the faster hot gases at the rear, increasing thrust. All the planes that will use it will be new, designed especially to accommodate the fatter fan. But materials scientists have developed composite ceramics reinforced with, well, ceramics. Boeing also came up with a concept in the NASA program that will be tested later this year at Langley.


Boeing's engineers believe that by using modern computational fluid dynamics they can minimize the extra drag caused by the struts, allowing for the longer, lighter, and higher wingsa€”a weight reduction that saves fuel.
Conventional jet engines would be used for takeoffs, but the aircraft would cruise using battery power.
A blended-wing aircraft built using conventional materials and frames would be very heavy, indeed.
Its skin would be made from carbon fiber fabric, stitched together, and then coated in epoxy to make it rigid. Cooling something to that icy a temperature so quickly could, however, cause frost to build up and block the engine.
Renewable jet fuel is available, but currently it is even more expensive than the petroleum-based kerosene it replaces. National Transportation Safety Board is holding investigative hearings on the battery this week. According to Rich Wahls, a NASA project scientist, it is designed to provide part of the lift in the fuselage, not just the wings, which allows it to have much thinner, lighter wings made from new-age materials.
But NASA has been working with Boeing on a blended-wing aircraft using lightweight composites. The design overcomes a big hurdle, because the lighter a fabric is, the less tolerant it is to damage.
Attia expects that will require carriers to schedule more frequent inspections and require them to look for cracks and fatigue that they don't have to worry about now.
Overall, Boeing estimates that the strut-wing design could reduce fuel consumption by about 60 percent. For competitive reasons, it's not saying how it's done that, but the technology was certified late last year by the European Space Agency. That means that without increasing the temperature within the combustion chamber, the turbine will create excess power that can be used to generate more thrust.
Department of Energy's Lawrence Berkeley National Laboratory in California, says of those alloys. That information can be used to compute the predicted life of the material and how far it can be safely pushed. Five manufacturersa€”including Airbus, Bombardier, and Embraera€”have so far placed orders for 3,500 PurePower engines. A jet engine's fan works more efficiently at slower speeds than does the core's turbine, and the gearbox allows the two to spin independently, each at its optimum speed. It also allows scientists to reformulate a composite's mix to improve its microstructure and make it more robust and reliable. According to Attia, an engine-maker typically has to sell 350 units before it starts recouping its investment in developing a new engine.
So already the geared engine is a success, well in advance of its June debut aboard the new Bombardier C Series planes.



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