मोबाइल को कंप्यूटर की तरह इस्तेमाल करे

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Introduction to Thermal Power Plant

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INTRODUCTION TO THERMAL POWER PLANT: The thermal power plant are coal based power plants. It uses coal as a fuel to generate steam from water in its boiler. There is a closed cycle to enable the working fluid (water) to be used again and again. The cycle used in steam power plant is “Rankine Reheat and Regenerative cycle (modified Rankine cycle).  The figure shows this cycle and is self explanatory. Simple power plant steam water cycle  Rankine Reheat and Regenerative Cycle [2] On large turbines, it becomes economical to increase the cycle efficiency  by using reheat, by returning partially expanded steam, to a reheater, the average temperature at which heat is added, is increased and, by expanding this reheated steam to the remaining stages of the turbine, the exhaust wetness is considerably less than it would otherwise be conversely. Regenerative heating of the boiler feed water is widely used in modern Power plants; the effect being to increase the average temperatu...
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इंजीनियरिंग मैकेनिक्स एंड मैकेनिक्स ऑफ़ लाइफ

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इंजीनियरिंग मैकेनिक्स एंड मैकेनिक्स ऑफ़ लाइफ  (अभियान्त्रिकी एवं जिंदगी की यांत्रिकी  ) यांत्रिकी   Mechanics यांत्रिकी भौतिक शास्त्र की एक शाखा है, जो बल एवं उसके किसी वस्तु या कण पर पड़ने वाले प्रभाव, या कण के  द्रव्यमान, जड़त्व,गति आदि का अध्ययन  करती है। ( कण उस वस्तु को माना जाता है जिसका द्रव्यमान नगण्य हो, या ऐसा कहे कि उस वस्तु पर लगने वाले बाह्य बालो की तुलना में वस्तु का भार नगण्य हो। ) यह यांत्रिकी की एक सरल परिभाषा है हम इसमें कुछ और भी जोड़ सकते है। जैसा कि यह बल एवं उसके प्रभाव से संबंधित है; हम इसके सिद्धान्तो को जिंदगी से भी जोड़ सकते है, क्युकि दैनिक जीवन में भी कई बाहरी चीजो का प्रभाव पड़ता है।  जैसे नौकरी, परिवार, सम्बन्ध, पैसा, दोस्ती, तनाव, ख़ुशी, आदि। मैंने इसे एक नाम देना उचित समझा   "जिंदगी की यांत्रिकी " (मैकेनिक्स ऑफ़ लाइफ ) सबसे पहले हम यांत्रिकी के सिद्धांतो को समझेंगे फिर उन्हें जिंदगी पर लागु कर के देखेंगे। बलो के संतुलन के प्रश्नो को हल कीजिये फिर उन्हें सम्बन्धो एवं नौकरी / व्यवस...
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BOILER PARTS (Water wall and Drum)

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Boiler Parts : Water walls Almost all modern power boilers are equipped with water walls. In large boilers, water walls completely cover the interior surfaces of the furnace providing practically complete elimination of exposed refractory surface; Waterwalls serve as the only means of heating and evaporating the feed water supplied to the boiler from  economizers . Waterwalls usually consists of tangential vertical tubes and are connected at the top and bottom to headers. These tubes receive water from the boiler drum by means of downcomers connected between drum and Waterwalls lower header (Bottom Ring Header). In a boiler approximately 50% of the heat released by combustion of fuel in the furnace is  absorbed  by Waterwalls. Heat so absorbed by the Waterwalls is used in evaporation of water supplied to the boiler. The evaporated steam supplied to Boiler Drum again by mean of riser tubes from top header of water wall. W/W Top Header water wall of a thermal powe...
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