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World's longest over-water bridge, the 41.58km-long Qingdao Haiwan Bridge, opens to traffic in China's Qingdao on the last day of June. The bridge connects the city of Qingdao with Hongdao in Chengyang District along with the suburban Huangdao District over the waters with the northern a part of Jiaozhou Bay in Shandong Province.
The 1931 Bugatti Royale Kellner Coupe was recorded because most costly car ever. It was sold for $8,700,000 in 1987. Meanwhile, the Bugatti type 41, also referred to as Bugatti Royale, is now one of the rarest cars on the globe. Bugatti produced only 6 from originally planned 25, among them only 3 could find their buyers. However, these cars are certainly not indexed by top rarest and expensive cars on earth because they are certainly not available in the market nowadays. Following are 10 priciest and rarest cars on the market.
Coal based power makes up about almost 41 % with the world's electricity generation. Coal fired power plants operate on the modified Rankine thermodynamic cycle.The efficiency is dictated by the parameters with this thermodynamic cycle. The overall coal plant efficiency ranges from 32 % to 42 %. This is mainly dictated through the Superheat and Reheat steam temperatures and Superheat pressures. Most in the large power plants operate at steam pressures of 170 bar and 570 ??C Superheat, and 570 ?? C reheat temperatures. The efficiencies of such plants range between 35 % to 38 %. Super critical power plants operating at 220 bar and 600/600 ??C is capable of efficiencies of 42 %. Ultra super critical pressure power plants at 300 bar and 600/600 ??C is capable of doing efficiencies inside the selection of 45% to 48 % efficiency.
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