Investigation of CO2 mixtures to overcome the limits of sCO2 cycles

Supercritical CO2 cycles are a promising technology, but their performance drops for hot cold source, in hot and arid environments, typical of a CSP field. The adoption of CO2-based mixtures as working fluid can turn supercritical CO2 cycles into transcritical cycles even at high temperatures, with...

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Autores principales:	Morosini Ettore, Manzolini Giampaolo, Di Marcoberardino Gioele, Invernizzi Costante, Iora Paolo
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/3ef5b975102040469c9dbfdf059c1b67
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spelling	oai:doaj.org-article:3ef5b975102040469c9dbfdf059c1b672021-11-08T15:18:51ZInvestigation of CO2 mixtures to overcome the limits of sCO2 cycles2267-124210.1051/e3sconf/202131208010https://doaj.org/article/3ef5b975102040469c9dbfdf059c1b672021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/88/e3sconf_ati2021_08010.pdfhttps://doaj.org/toc/2267-1242Supercritical CO2 cycles are a promising technology, but their performance drops for hot cold source, in hot and arid environments, typical of a CSP field. The adoption of CO2-based mixtures as working fluid can turn supercritical CO2 cycles into transcritical cycles even at high temperatures, with performance improvement and significant power block cost reduction. The concept is addressed within the SCARABEUS project, an EU funded Horizon 2020 project dedicated to the use of CO2-based mixtures for CSP plants. In this work, the use of the CO2+C6F6 mixture as working fluid for a power cycle coupled with a solar tower is analysed. The potentiality of the mixture is presented, given its very low toxicity and its good thermal stability limits. Comparisons with the sCO2 cycle is performed for some typical configurations, in order to underline the advantages of the mixture, and a preliminary design of the turbine is presented, developed in a 1D tool.Morosini EttoreManzolini GiampaoloDi Marcoberardino GioeleInvernizzi CostanteIora PaoloEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 312, p 08010 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Morosini Ettore Manzolini Giampaolo Di Marcoberardino Gioele Invernizzi Costante Iora Paolo Investigation of CO2 mixtures to overcome the limits of sCO2 cycles
description	Supercritical CO2 cycles are a promising technology, but their performance drops for hot cold source, in hot and arid environments, typical of a CSP field. The adoption of CO2-based mixtures as working fluid can turn supercritical CO2 cycles into transcritical cycles even at high temperatures, with performance improvement and significant power block cost reduction. The concept is addressed within the SCARABEUS project, an EU funded Horizon 2020 project dedicated to the use of CO2-based mixtures for CSP plants. In this work, the use of the CO2+C6F6 mixture as working fluid for a power cycle coupled with a solar tower is analysed. The potentiality of the mixture is presented, given its very low toxicity and its good thermal stability limits. Comparisons with the sCO2 cycle is performed for some typical configurations, in order to underline the advantages of the mixture, and a preliminary design of the turbine is presented, developed in a 1D tool.
format	article
author	Morosini Ettore Manzolini Giampaolo Di Marcoberardino Gioele Invernizzi Costante Iora Paolo
author_facet	Morosini Ettore Manzolini Giampaolo Di Marcoberardino Gioele Invernizzi Costante Iora Paolo
author_sort	Morosini Ettore
title	Investigation of CO2 mixtures to overcome the limits of sCO2 cycles
title_short	Investigation of CO2 mixtures to overcome the limits of sCO2 cycles
title_full	Investigation of CO2 mixtures to overcome the limits of sCO2 cycles
title_fullStr	Investigation of CO2 mixtures to overcome the limits of sCO2 cycles
title_full_unstemmed	Investigation of CO2 mixtures to overcome the limits of sCO2 cycles
title_sort	investigation of co2 mixtures to overcome the limits of sco2 cycles
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/3ef5b975102040469c9dbfdf059c1b67
work_keys_str_mv	AT morosiniettore investigationofco2mixturestoovercomethelimitsofsco2cycles AT manzolinigiampaolo investigationofco2mixturestoovercomethelimitsofsco2cycles AT dimarcoberardinogioele investigationofco2mixturestoovercomethelimitsofsco2cycles AT invernizzicostante investigationofco2mixturestoovercomethelimitsofsco2cycles AT iorapaolo investigationofco2mixturestoovercomethelimitsofsco2cycles
_version_	1718442032744103936

Investigation of CO2 mixtures to overcome the limits of sCO2 cycles

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