"ग्याँस टर्बाइन" का संशोधनहरू बिचको अन्तर

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ग्यास टर्बाइनको प्रयोग हवाई विमान, रेल, पानीजहाज, विद्युतीय जेनेरेटर, पम्प, ग्यास कम्प्रेसर, र ट्याङ्कमा गरिन्छ।<ref>{{cite book |last1=Sonntag |first1=Richard E. |last2=Borgnakke |first2=Claus |title=Introduction to engineering thermodynamics |year=2006 |publisher=John Wiley |isbn=9780471737599 |edition= Second}}</ref>
ग्यास टर्बाइनको प्रयोग हवाई विमान, रेल, पानीजहाज, विद्युतीय जेनेरेटर, पम्प, ग्यास कम्प्रेसर, र ट्याङ्कमा गरिन्छ।<ref>{{cite book |last1=Sonntag |first1=Richard E. |last2=Borgnakke |first2=Claus |title=Introduction to engineering thermodynamics |year=2006 |publisher=John Wiley |isbn=9780471737599 |edition= Second}}</ref>
==फाइदा तथा बेफाइदा ==
ग्यास टर्बाइन इन्जिनको फाइदा तथा बेफाइदा निम्नानुसार छन्:<ref>{{cite web|last=Brain |first=Marshall |url= http://science.howstuffworks.com/turbine2.htm |title=How Gas Turbine Engines Work |publisher=Science.howstuffworks.com |date=1 April 2000 |access-date=13 March 2016}}</ref>

===फाइदा===
* Very high [[power-to-weight ratio]] compared to reciprocating engines.
* Smaller than most reciprocating engines of the same power rating.
* Smooth rotation of the main shaft produces far less vibration than a reciprocating engine.
* Fewer moving parts than reciprocating engines results in lower maintenance cost and higher reliability/availability over its service life.
* Greater reliability, particularly in applications where sustained high power output is required.
* Waste heat is dissipated almost entirely in the exhaust. This results in a high-temperature exhaust stream that is very usable for boiling water in a [[combined cycle]], or for [[cogeneration]].
* Lower peak combustion pressures than reciprocating engines in general.
* High shaft speeds in smaller "free turbine units", although larger gas turbines employed in power generation operate at synchronous speeds.
* Low lubricating oil cost and consumption.
* Can run on a wide variety of fuels.
* Very low toxic emissions of CO and HC due to excess air, complete combustion and no "quench" of the flame on cold surfaces.

===बेफाइदा===
* Core engine costs can be high due to use of exotic materials.
* Less efficient than reciprocating engines at idle speed.
* Longer startup than reciprocating engines.
* Less responsive to changes in power demand compared with reciprocating engines.
* Characteristic whine can be hard to suppress.

==सन्दर्भ सामग्रीहरू==
==सन्दर्भ सामग्रीहरू==
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१७:५०, ३ जुलाई २०२१ जस्तै गरी पुनरावलोकन

एक प्रकारको ग्यास टर्बाइन र विभिन्न भाग : A-प्रोपेलर, B-गियर, C-कम्प्रेसर, D-ज्वालक (कम्बस्टर), E-टर्बाइन, F-निकास

ग्यास टर्बाइन (अङ्ग्रेजी: gas turbine) एक प्रकारको आन्तरिक दहन इन्जिन हो जुनले घुम्नको लागि आवश्यक ऊर्जा ज्वलनशील ग्यासको प्रवाहबाट प्राप्त गर्छ। यसैकारण यसलाई 'दहन टर्बाइन' (अङ्ग्रेजी: combustion turbine) पनि भनिन्छ।[१] टरबाइनको गति घूर्णी (रोटरी) हुने भएकाले यो इन्जिन विद्युत जेनेरेटर घुमाउनको लागपनि उपयुक्त मानिन्छ। संयुक्त राज्य अमेरिका को लगभग ९० प्रतिशत विद्युत ऊर्जा वाष्प टरबाइन (अङ्ग्रेजी: Steam Turbine)बाट नै पैदा गरिन्छ। वाष्प टरबाइनको दक्षता अन्य ऊष्मा इन्जिनको तुलनामा धेरै हुन्छ। अधिक दक्षता वाष्पको प्रसारको लागि कयौं चरणको प्रयोगबाट प्राप्त गर्न सकिन्छ।

'ग्यास टरबाइन'को विभिन्न परिभाषा दिन सकिन्छ। विस्तृत परिभाषा अनुसार ग्यासस टरबाइन त्यो प्राइम मुभर (prime mover) हो जसको सम्पूर्ण उष्मीय चक्रमा कार्यकारी तरल ग्यास अवस्थामा अवस्था रहन्छ र जसको सबै पुर्जाको गति रोटरी (अङ्ग्रेजी: rotary हुन्छ।

ग्यास टर्बाइनको प्रयोग हवाई विमान, रेल, पानीजहाज, विद्युतीय जेनेरेटर, पम्प, ग्यास कम्प्रेसर, र ट्याङ्कमा गरिन्छ।[२]

फाइदा तथा बेफाइदा

ग्यास टर्बाइन इन्जिनको फाइदा तथा बेफाइदा निम्नानुसार छन्:[३]

फाइदा

  • Very high power-to-weight ratio compared to reciprocating engines.
  • Smaller than most reciprocating engines of the same power rating.
  • Smooth rotation of the main shaft produces far less vibration than a reciprocating engine.
  • Fewer moving parts than reciprocating engines results in lower maintenance cost and higher reliability/availability over its service life.
  • Greater reliability, particularly in applications where sustained high power output is required.
  • Waste heat is dissipated almost entirely in the exhaust. This results in a high-temperature exhaust stream that is very usable for boiling water in a combined cycle, or for cogeneration.
  • Lower peak combustion pressures than reciprocating engines in general.
  • High shaft speeds in smaller "free turbine units", although larger gas turbines employed in power generation operate at synchronous speeds.
  • Low lubricating oil cost and consumption.
  • Can run on a wide variety of fuels.
  • Very low toxic emissions of CO and HC due to excess air, complete combustion and no "quench" of the flame on cold surfaces.

बेफाइदा

  • Core engine costs can be high due to use of exotic materials.
  • Less efficient than reciprocating engines at idle speed.
  • Longer startup than reciprocating engines.
  • Less responsive to changes in power demand compared with reciprocating engines.
  • Characteristic whine can be hard to suppress.

सन्दर्भ सामग्रीहरू

  1. ↑ "पृष्ठ क्रमाँक ४६-४७ बाल ज्ञान- विज्ञान एन्साइक्लोपीडिया संचार-परिवहन [[आई॰ऍस॰बी॰ऍन॰]] 978-81-85134-54-3", मूलबाट २० जनवरी २०१३-मा सङ्ग्रहित, अन्तिम पहुँच १ दिसंबर २०१२। 
  2. ↑ Sonntag, Richard E.; Borgnakke, Claus (२००६), Introduction to engineering thermodynamics (Second संस्करण), John Wiley, आइएसबिएन 9780471737599। 
  3. ↑ Brain, Marshall (१ अप्रिल २०००), "How Gas Turbine Engines Work", Science.howstuffworks.com, अन्तिम पहुँच १३ मार्च २०१६।  
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