Generation of compressed air by cascaded thermocompressors – project status

Compressed air is one of the most widely used industrial energy sources, and its production by mechanical compressors is extremely expensive and, in addition, inefficient. Therefore, the utilization of waste heat, which accrues on a large scale in many industrial applications, by means of a thermoco...

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Autores principales:	Fischer Fabian, Kühl Hans-Detlev
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/3deefab4c05a4e788624a6b1513add2e
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spelling	oai:doaj.org-article:3deefab4c05a4e788624a6b1513add2e2021-11-08T15:18:57ZGeneration of compressed air by cascaded thermocompressors – project status2267-124210.1051/e3sconf/202131304003https://doaj.org/article/3deefab4c05a4e788624a6b1513add2e2021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/89/e3sconf_isec2021_04003.pdfhttps://doaj.org/toc/2267-1242Compressed air is one of the most widely used industrial energy sources, and its production by mechanical compressors is extremely expensive and, in addition, inefficient. Therefore, the utilization of waste heat, which accrues on a large scale in many industrial applications, by means of a thermocompressor is an obvious alternative. This contribution presents a design approach to experimentally investigate a reciprocating thermocompressor with a self-actuated overdriven free displacer. These experiments shall be the basis for the design and realization of a cascade of identical stages, which has so far only been investigated by means of analytical modelling and theoretical similarity considerations. The main advantage of this approach is its extreme constructive simplicity and the expected self-regulating effect, which both facilitate a cost-effective production and operation. As the minimization of dead volume and fluid friction losses is essential, the heat exchangers and the regenerator are plainly realized by an annular gap around the displacer in the proposed design, thus further increasing its simplicity. The design parameters are determined by an optimization based on an analytical model extended by various losses and heat transfer limitations.Fischer FabianKühl Hans-DetlevEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 313, p 04003 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Fischer Fabian Kühl Hans-Detlev Generation of compressed air by cascaded thermocompressors – project status
description	Compressed air is one of the most widely used industrial energy sources, and its production by mechanical compressors is extremely expensive and, in addition, inefficient. Therefore, the utilization of waste heat, which accrues on a large scale in many industrial applications, by means of a thermocompressor is an obvious alternative. This contribution presents a design approach to experimentally investigate a reciprocating thermocompressor with a self-actuated overdriven free displacer. These experiments shall be the basis for the design and realization of a cascade of identical stages, which has so far only been investigated by means of analytical modelling and theoretical similarity considerations. The main advantage of this approach is its extreme constructive simplicity and the expected self-regulating effect, which both facilitate a cost-effective production and operation. As the minimization of dead volume and fluid friction losses is essential, the heat exchangers and the regenerator are plainly realized by an annular gap around the displacer in the proposed design, thus further increasing its simplicity. The design parameters are determined by an optimization based on an analytical model extended by various losses and heat transfer limitations.
format	article
author	Fischer Fabian Kühl Hans-Detlev
author_facet	Fischer Fabian Kühl Hans-Detlev
author_sort	Fischer Fabian
title	Generation of compressed air by cascaded thermocompressors – project status
title_short	Generation of compressed air by cascaded thermocompressors – project status
title_full	Generation of compressed air by cascaded thermocompressors – project status
title_fullStr	Generation of compressed air by cascaded thermocompressors – project status
title_full_unstemmed	Generation of compressed air by cascaded thermocompressors – project status
title_sort	generation of compressed air by cascaded thermocompressors – project status
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/3deefab4c05a4e788624a6b1513add2e
work_keys_str_mv	AT fischerfabian generationofcompressedairbycascadedthermocompressorsprojectstatus AT kuhlhansdetlev generationofcompressedairbycascadedthermocompressorsprojectstatus
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Generation of compressed air by cascaded thermocompressors – project status

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