About: Supercritical steam generator

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A supercritical steam generator is a type of boiler that operates at supercritical pressure, frequently used in the production of electric power. In contrast to a subcritical boiler in which bubbles can form, a supercritical steam generator operates at pressures above the critical pressure – 22 megapascals (3,200 psi). Therefore, liquid water immediately becomes indistinguishable from steam. Water passes below the critical point as it does work in a high pressure turbine and enters the generator's condenser, resulting in slightly less fuel use.The efficiency of power plants with supercritical steam generators is higher than with subcritical steam. Only with high pressure can higher temperature steam be converted more efficiently to mechanical energy in the turbine (as given by Carnot's the

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rdfs:label	Supercritical steam generator (en) 超臨界鍋爐 (zh)
rdfs:comment	超臨界鍋爐（supercritical steam generator）是指運作在超臨界壓力的锅炉，常用來產生壓力。若發電廠機組的鍋爐使用超臨界鍋爐，稱為超臨界機組。在一般火力發電廠的鍋爐中，鍋爐主蒸氣的溫度每上升一華氏度（1℉，約17.22°C / 攝氏度），其整體發電浪費之熱耗率便相應減少0.016%。因此目前全球的火力發電廠均思考如何提升鍋爐的蒸氣溫度以減緩熱耗率。一般發電廠會以先提高鍋爐溫度，後調整鍋爐壓力作為提升發電機組效率的手段。然而鍋爐及其周邊附帶設施的材質的組成在提升鍋爐溫度的關係乃非常密切，因此構建鍋爐的材料在提升發電效率上乃十分重要。在一般鍋爐中流體會形成氣泡，不過在超臨界鍋爐中，是運作在临界壓力以上 – 3,200 psi或22 MPa。因此水會立刻變成蒸汽，水進入高壓蒸汽渦輪發動機時會作功，其狀態會較临界條件要低，最後進入鍋爐的冷凝器，因此使用較少的燃料，其產生的温室气体也會比較少。在火力發電廠中，使用超臨界鍋爐可以提高熱效率，二氧化碳排放量較以往減少15%。 (zh) A supercritical steam generator is a type of boiler that operates at supercritical pressure, frequently used in the production of electric power. In contrast to a subcritical boiler in which bubbles can form, a supercritical steam generator operates at pressures above the critical pressure – 22 megapascals (3,200 psi). Therefore, liquid water immediately becomes indistinguishable from steam. Water passes below the critical point as it does work in a high pressure turbine and enters the generator's condenser, resulting in slightly less fuel use.The efficiency of power plants with supercritical steam generators is higher than with subcritical steam. Only with high pressure can higher temperature steam be converted more efficiently to mechanical energy in the turbine (as given by Carnot's the (en)
foaf:depiction
dcterms:subject	Steam generators Steam engines Boilers Chemical equipment Power station technology Steam boilers
Wikipage page ID	21804458 (xsd:integer)
Wikipage revision ID	1087874916 (xsd:integer)
Link from a Wikipage to another Wikipage	Carnot's theorem (thermodynamics) Properties of water List of boiler explosions Berlin John W. Turk Jr. Coal Plant Cottam power stations Critical point (thermodynamics) Once-through steam generator Electric power Condenser (heat transfer) Boiler Steam generators Steam Supercritical fluid Supercritical water reactor Steam engines Center for American Progress Heat of combustion Arkansas Boilers Chemical equipment Power station technology China Steam boilers CSIRO Philo, Ohio Philo Power Plant Mark Benson (engineer) Steam turbine Boiler (steam generator) Critical temperature and pressure dbr:High-Efficiency,_Low-Emissions
Link from a Wikipage to an external page	https://www.mhps.com/products/gasturbines/ http://www.thermopedia.com/content/578 https://www.americanprogress.org/issues/green/reports/2017/05/15/432141/everything-think-know-coal-china-wrong/
sameAs	Supercritical steam generator Supercritical steam generator Supercritical steam generator Supercritical steam generator Supercritical steam generator
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thumbnail	wiki-commons:Special:FilePath/Supercritical_H2Olr.jpg?width=300
has abstract	A supercritical steam generator is a type of boiler that operates at supercritical pressure, frequently used in the production of electric power. In contrast to a subcritical boiler in which bubbles can form, a supercritical steam generator operates at pressures above the critical pressure – 22 megapascals (3,200 psi). Therefore, liquid water immediately becomes indistinguishable from steam. Water passes below the critical point as it does work in a high pressure turbine and enters the generator's condenser, resulting in slightly less fuel use.The efficiency of power plants with supercritical steam generators is higher than with subcritical steam. Only with high pressure can higher temperature steam be converted more efficiently to mechanical energy in the turbine (as given by Carnot's theorem). Technically, the term "boiler" should not be used for a supercritical pressure steam generator as no "boiling" actually occurs in the device. (en) 超臨界鍋爐（supercritical steam generator）是指運作在超臨界壓力的锅炉，常用來產生壓力。若發電廠機組的鍋爐使用超臨界鍋爐，稱為超臨界機組。在一般火力發電廠的鍋爐中，鍋爐主蒸氣的溫度每上升一華氏度（1℉，約17.22°C / 攝氏度），其整體發電浪費之熱耗率便相應減少0.016%。因此目前全球的火力發電廠均思考如何提升鍋爐的蒸氣溫度以減緩熱耗率。一般發電廠會以先提高鍋爐溫度，後調整鍋爐壓力作為提升發電機組效率的手段。然而鍋爐及其周邊附帶設施的材質的組成在提升鍋爐溫度的關係乃非常密切，因此構建鍋爐的材料在提升發電效率上乃十分重要。在一般鍋爐中流體會形成氣泡，不過在超臨界鍋爐中，是運作在临界壓力以上 – 3,200 psi或22 MPa。因此水會立刻變成蒸汽，水進入高壓蒸汽渦輪發動機時會作功，其狀態會較临界條件要低，最後進入鍋爐的冷凝器，因此使用較少的燃料，其產生的温室气体也會比較少。在火力發電廠中，使用超臨界鍋爐可以提高熱效率，二氧化碳排放量較以往減少15%。 (zh)
gold:hypernym	Boiler
prov:wasDerivedFrom	wikipedia-en:Supercritical_steam_generator?oldid=1087874916&ns=0
page length (characters) of wiki page	9705 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Supercritical_steam_generator
is Link from a Wikipage to another Wikipage of	Quaise San Buenaventura Power Plant Energy in Arkansas Monotube steam generator Benson boiler John W. Turk Jr. Coal Plant List of active coal-fired power stations in Turkey List of small modular reactor designs

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