Siemens in $400m deal for first gas plant on Marcellus gas field

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Siemens will supply two power islands, each consisting of one SGT6-8000H gas turbine, one SST6-5000 steam turbine, one hydrogen-cooled SGen-2000H generator and one heat recovery steam generator, along with the overall electrical system and the SPPA-T3000 I&C system. The gas turbines and generators wil be built at Siemens’ plant in Charlotte, North Carolina. http://www.microgenerationconcepts.com
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L&T Power: Supercritical Technology

See on Scoop.itOrganic Rankine Cycle

The term “supercritical” refers to main steam operating conditions, being above the critical pressure of water (221.5 bar). The significance of the critical point is the difference in density between steam and water. Above the critical pressure there is no distinction between steam and water, i.e. above 221.5 bar, water is a fluid. Supercritical steam cycle with one reheat. a − b : Condensate cycle up to Deaerator c : Boiler feed pump discharge c − d : Feed water heating d − e : Main steam generation e − f : Expansion in turbine f − g : Reheat steam generation g − h : Expansion in turbine In supercritical cycle, equipment is designed to operate above the critical pressure of water. Supercritical boilers are once-through where in the feedwater enters the economiser and flows through one path and main steam exits the circuit. Typically current supercritical units operate at 242 bar main steam pressure, 565ºC main steam temperature and 593ºC reheat steam temperature. http://www.microgenerationconcepts.com
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Converting Low- and Mid- Temperature Heat into Electrical Power

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Goswami thermodynamic refrigeration simultaneously in one loop [1].This cycle is a combination of Rankine power cycle and an absorption cooling cycle. Its advantages include Industrial Waste Heat the production of power and cooling in the same cycle, the design flexibility to produce any combination of power and refrigeration, the efficient conversion of moderate temperature heat sources, and the possibility of improved resource Thermodynamic Cycles for the utilization compared to separate power and cooling systems [2]. The binary mixture first used was ammonia-water, and later on new binary fluids were proposed and studied. http://www.microgenerationconcepts.com
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Organic Rankine Cycle | Fundstellen im Internet | cyclopaedia.net

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Dies ist ein Auszug aus dem Artikel Organic Rankine Cycle der freien Enzyklopädie Wikipedia. In der Wikipedia ist eine Liste der Autoren verfügbar.

 

Fundstellen zu “Organic Rankine Cycle” im Internet, an Universitäten und in der Literatur… cyclopaedia.net

 

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The Kalina Cycle┬« vs Organic Rankine Cycle (ORC)

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Kalina Cycle® versus Rankine Cycle

The Kalina Cycle® is the first major advance in power generation technology over the Rankine Cycle, invented by William Rankine of Scotland over 150 years ago.  The Rankine cycle uses a pure component working fluid (e.g. water, Freon, etc.) in a high pressure boiler to generate vapor that is then used to drive a turbine that produces electricity. The vapor must then be condensed and pumped to a high pressure in order for the cycle to start over.  The Kalina Cycle® utilizes  an ammonia-water mixture, rather than a pure component, for the working fluid. The ammonia-water mixture boils and condenses over a temperature range and the ammonia-water mixture composition can be varied within the power cycle.  These thermodynamic attributes can be used to create efficiency improvements in the power cycle by as much as 50 percent.

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