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13:42 Dec 16, 2006 |
English to Arabic translations [PRO] Tech/Engineering - Energy / Power Generation | |||||||
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| Selected response from: Shazly Egypt Local time: 11:53 | ||||||
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Summary of answers provided | ||||
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5 +1 | وحدة مزدوجة الدورة |
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1 +2 | محطة توليد بنظام الدورة المركبة |
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combined cycle plant وحدة مزدوجة الدورة Explanation: Combined cycle is a term used when a power producing engine or plant employs more than one thermodynamic cycle. Heat engines are only able to use a portion of the energy their fuel generates (usually less than 30%). The remaining heat from combustion is generally wasted. Combining two or more "cycles" such as the Brayton cycle and Rankine cycle results in improved overall efficiency. In a combined cycle power plant (CCPP), or combined cycle gas turbine (CCGT) plant, a gas turbine generator generates electricity and the waste heat from the gas turbine is used to make steam to generate additional electricity via a steam turbine; this last step enhances the efficiency of electricity generation. Most new gas power plants are of this type. In a thermal power plant, high-temperature heat as input to the power plant, usually from burning of fuel, is converted to electricity as one of the outputs and low-temperature heat as another output. As a rule, in order to achieve high efficiency, the temperature of the input heat should be as high as possible and the temperature of the output heat as low as possible (see Carnot efficiency). This is achieved by combining the Rankine (steam) and Brayton (gas) thermodynamic cycles. Such an arrangement used for marine propulsion is called COmbined Gas (turbine) And Steam (turbine) (COGAS). |
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combined cycle plant محطة توليد بنظام الدورة المركبة Explanation: The combined cycle power plant uses a combination of gas turbine and steam turbine equipment to generate electricity from a single fuel. By recovering the energy in the gas turbine exhaust and using it to generate steam, the cycle leverages the conversion of the fuel energy at a very attractive efficiency. -------------------------------------------------- Note added at 4 hrs (2006-12-16 17:45:38 GMT) -------------------------------------------------- Simple Cycle الدورة البسيطة http://egypteng.com/viewnews.asp?ID=27 |
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