naa a22 4500 510802982 CHVBK 20180411083403.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11664-012-2434-6 doi (NATIONALLICENCE)springer-10.1007/s11664-012-2434-6 Megawatt-Scale Application of Thermoelectric Devices in Thermal Power Plants [Elektronische Daten] [A. Knox, J. Buckle, J. Siviter, A. Montecucco, E. McCulloch] Despite the recent investment in renewable and sustainable energy sources, over 95% of the UK's electrical energy generation relies on the use of thermal power plants utilizing the Rankine cycle. Advanced supercritical Rankine cycle power plants typically have a steam temperature in excess of 600°C at a pressure of 290bar and yet still have an overall efficiency below 50%, with much of this wasted energy being rejected to the environment through the condenser/cooling tower. This paper examines the opportunity for large-scale application of thermoelectric heat pumps to modify the Rankine cycle in such plants by preheating the boiler feedwater using energy recovered from the condenser system at a rate of approximately 1MWth per °C temperature rise. A derivation of the improved process cycle efficiency and breakeven coefficient of performance required for economic operation is presented for a typical supercritical 600-MWe installation. TMS, 2013 Regenerative Rankine cycle nationallicence heat pump nationallicence power plant nationallicence regeneration nationallicence energy scavenging nationallicence Knox A. School of Engineering, University of Glasgow, Scotland, UK aut Buckle J. School of Engineering, University of Glasgow, Scotland, UK aut Siviter J. School of Engineering, University of Glasgow, Scotland, UK aut Montecucco A. School of Engineering, University of Glasgow, Scotland, UK aut McCulloch E. Doosan Power Systems, Crawley, UK aut Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/7(2013-07-01), 1807-1813 0361-5235 42:7<1807 2013 42 11664 https://doi.org/10.1007/s11664-012-2434-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11664-012-2434-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Knox A. School of Engineering, University of Glasgow, Scotland, UK aut NATIONALLICENCE 700 1- Buckle J. School of Engineering, University of Glasgow, Scotland, UK aut NATIONALLICENCE 700 1- Siviter J. School of Engineering, University of Glasgow, Scotland, UK aut NATIONALLICENCE 700 1- Montecucco A. School of Engineering, University of Glasgow, Scotland, UK aut NATIONALLICENCE 700 1- McCulloch E. Doosan Power Systems, Crawley, UK aut NATIONALLICENCE 773 0- Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/7(2013-07-01), 1807-1813 0361-5235 42:7<1807 2013 42 11664 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer