Modified Steam-Turbine Rankine Cycle without Rejection of the Cycle Condensation Heat, Driven by a Wet-Vapor-Region Thermocompressor

The disclosed concept relates to a novel modified and simplified steam-turbine Rankine cycle without rejection of the cycle waste heat of condensation, which is driven by a thermocompressor (ejector) operating in the wet-vapor region. The thus modified steam-turbine Rankine cycle can theoretically a...

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Main Author: Branko Stanković
Format: Article
Language:English
Published: Savez energetičara 2024-06-01
Series:Energija, Ekonomija, Ekologija
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Online Access:https://doi.ub.kg.ac.rs/doi/casopisi/energija-ekonomija-ekologija/10-46793-eee24-2-71s/
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author Branko Stanković
author_facet Branko Stanković
author_sort Branko Stanković
collection DOAJ
description The disclosed concept relates to a novel modified and simplified steam-turbine Rankine cycle without rejection of the cycle waste heat of condensation, which is driven by a thermocompressor (ejector) operating in the wet-vapor region. The thus modified steam-turbine Rankine cycle can theoretically achieve the maximum possible thermal efficiency (~100%). The wet-vapor mixture circulating within the thermocompressor is being separated in a dedicated cylindrical separation tank, so that the saturated water is pumped to a water heater where it receives the cycle heat input, while the saturated vapor is expanded in a backpressure steam turbine producing useful mechanical work and is then recirculated back to the thermocompressor, where it is being re-pressurized by means of the primary fluid (pumped and heated saturated water). The concept can be applied to steam-turbine-cycle power-plants fueled by: coal or solid/liquid/gaseous fuel, waste heat, nuclear fuel (used by boiling water reactors, pressurized water reactors, pressurized heavy-water reactors, gas-cooled reactors, molten salt reactors or liquid-metal-cooled fast reactors) or renewable energy sources (Solar energy, biomass, geothermal). The concept can also be applied as the “bottoming” steam-turbine-cycle part of a combined gas-turbine/steam-turbine cycle power plant.
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institution Kabale University
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publishDate 2024-06-01
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series Energija, Ekonomija, Ekologija
spelling doaj-art-baeca7ffd16d455494b2c196899a52d52025-01-08T12:44:55ZengSavez energetičaraEnergija, Ekonomija, Ekologija0354-86512812-75282024-06-01262717810.46793/EEE24-2.71SModified Steam-Turbine Rankine Cycle without Rejection of the Cycle Condensation Heat, Driven by a Wet-Vapor-Region ThermocompressorBranko Stanković0https://orcid.org/0009-0000-8393-7699Bechtel-ENKA Joint Venture UK Ltd., Energonauts LLC, McMaster University, Professional Engineers OntarioThe disclosed concept relates to a novel modified and simplified steam-turbine Rankine cycle without rejection of the cycle waste heat of condensation, which is driven by a thermocompressor (ejector) operating in the wet-vapor region. The thus modified steam-turbine Rankine cycle can theoretically achieve the maximum possible thermal efficiency (~100%). The wet-vapor mixture circulating within the thermocompressor is being separated in a dedicated cylindrical separation tank, so that the saturated water is pumped to a water heater where it receives the cycle heat input, while the saturated vapor is expanded in a backpressure steam turbine producing useful mechanical work and is then recirculated back to the thermocompressor, where it is being re-pressurized by means of the primary fluid (pumped and heated saturated water). The concept can be applied to steam-turbine-cycle power-plants fueled by: coal or solid/liquid/gaseous fuel, waste heat, nuclear fuel (used by boiling water reactors, pressurized water reactors, pressurized heavy-water reactors, gas-cooled reactors, molten salt reactors or liquid-metal-cooled fast reactors) or renewable energy sources (Solar energy, biomass, geothermal). The concept can also be applied as the “bottoming” steam-turbine-cycle part of a combined gas-turbine/steam-turbine cycle power plant.https://doi.ub.kg.ac.rs/doi/casopisi/energija-ekonomija-ekologija/10-46793-eee24-2-71s/modified rankine cycleno rejection of cycle waste heat of condensationthermocompressor operating in the wet-vapor regionmaximum possible cycle thermal efficiency
spellingShingle Branko Stanković
Modified Steam-Turbine Rankine Cycle without Rejection of the Cycle Condensation Heat, Driven by a Wet-Vapor-Region Thermocompressor
Energija, Ekonomija, Ekologija
modified rankine cycle
no rejection of cycle waste heat of condensation
thermocompressor operating in the wet-vapor region
maximum possible cycle thermal efficiency
title Modified Steam-Turbine Rankine Cycle without Rejection of the Cycle Condensation Heat, Driven by a Wet-Vapor-Region Thermocompressor
title_full Modified Steam-Turbine Rankine Cycle without Rejection of the Cycle Condensation Heat, Driven by a Wet-Vapor-Region Thermocompressor
title_fullStr Modified Steam-Turbine Rankine Cycle without Rejection of the Cycle Condensation Heat, Driven by a Wet-Vapor-Region Thermocompressor
title_full_unstemmed Modified Steam-Turbine Rankine Cycle without Rejection of the Cycle Condensation Heat, Driven by a Wet-Vapor-Region Thermocompressor
title_short Modified Steam-Turbine Rankine Cycle without Rejection of the Cycle Condensation Heat, Driven by a Wet-Vapor-Region Thermocompressor
title_sort modified steam turbine rankine cycle without rejection of the cycle condensation heat driven by a wet vapor region thermocompressor
topic modified rankine cycle
no rejection of cycle waste heat of condensation
thermocompressor operating in the wet-vapor region
maximum possible cycle thermal efficiency
url https://doi.ub.kg.ac.rs/doi/casopisi/energija-ekonomija-ekologija/10-46793-eee24-2-71s/
work_keys_str_mv AT brankostankovic modifiedsteamturbinerankinecyclewithoutrejectionofthecyclecondensationheatdrivenbyawetvaporregionthermocompressor