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Research Article Open access CC BY 4.0

Power Plant Driven by Residual Heat Rejected by the Bottoming Low Pressure Steam Turbines

Ramon Ferreiro Garcia, Beatriz Ferreiro Sanz, Cristina Ferreiro Sanz

Current Journal of Applied Science and Technology · pp. 216–228 · Published 16 Dec 2014

10.9734/BJAST/2015/12111

Abstract

The work deals with thermal engine structures undergoing load based expansion-contraction processes powered by the residual heat rejected by low pressure turbines of the bottoming steam Rankine cycles. The isobaric expansion-contraction based thermal cycles at constant load referred to in this paper, is characterised by its high thermal efficiency at low temperatures, since such thermal cycle doesn’t obey the Carnot statement. Such bottoming energy convertor must be implemented in cascade with the low pressure turbine of the steam Rankine cycles at combined cycle power plants, including nuclear power plants. An analysis of the ideal isobaric expansion-contraction based thermal cycle is carried out and results are compared with the Carnot cycle operating under the same ratio of temperatures. Hydrogen and helium have been chosen as working fluids due to its high specific heat capacity and thermal efficiency. The satisfactory results obtained from a simple and compact installation envisage the way towards a new generation of thermal power plants.

Carnot factor isobaric expansion isobaric compression residual thermal energy thermal efficiency

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Cited by 11

RETRACTED: Low-grade heat-based thermal cycles unconstrained by the Carnot factor doing work by cooling

Ramon Ferreiro Garcia, Jose Carbia Carril, Steven Iglesias Garcia · Energy · 2017

A review of thermodynamic cycles used in low temperature recovery systems over the last two years

Steven Iglesias Garcia, Ramon Ferreiro Garcia, Jose Carbia Carril · Renewable and Sustainable Energy Reviews · 2018

Critical review of the first-law efficiency in different power combined cycle architectures

Steven Iglesias Garcia, Ramon Ferreiro Garcia, Jose Carbia Carril · Energy Conversion and Management · 2017

Combined Cycle Consisting of Closed Processes Based Cycle Powered by A Reversible Heat Pump that Exceed Carnot Factor

Ramon Ferreiro Garcia, Jose Carbia carril · JOURNAL OF ADVANCES IN PHYSICS · 2019

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