Modeling a Large Air-Cooled Condenser

This study reports on a modeling strategy for large Air-Cooled Condensers (ACCs). A large 64-fan ACC was modeled under various crosswind conditions that investigated the ACC’s specific axial flow fan configuration. The ACC model was developed in two parts, an axial flow fan model and a heat exchange...

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Autores principales:	Louw D.L., Meyer C.J., van der Spuy S.J.
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/d4d19bac3eee482d8964a74b2de5b539
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id	oai:doaj.org-article:d4d19bac3eee482d8964a74b2de5b539
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spelling	oai:doaj.org-article:d4d19bac3eee482d8964a74b2de5b5392021-12-02T17:13:35ZModeling a Large Air-Cooled Condenser2261-236X10.1051/matecconf/202134700016https://doaj.org/article/d4d19bac3eee482d8964a74b2de5b5392021-01-01T00:00:00Zhttps://www.matec-conferences.org/articles/matecconf/pdf/2021/16/matecconf_sacam21_00016.pdfhttps://doaj.org/toc/2261-236XThis study reports on a modeling strategy for large Air-Cooled Condensers (ACCs). A large 64-fan ACC was modeled under various crosswind conditions that investigated the ACC’s specific axial flow fan configuration. The ACC model was developed in two parts, an axial flow fan model and a heat exchanger model. The axial flow fans were modeled using an Actuator Disk Model (ADM). The heat exchangers’ pressure drop was modeled using the Darcy-Forchheimer porosity model, and the Effectiveness Number of Transfer Units (ε-NTU) method was used to determine the air heat transfer rate. The ACC was configured using two different axial flow fans, identified in this study as the L-fan and the N-fan. Comparatively the L-fan has a steeper fan static pressure characteristic curve than that of the N-fan, at the cost of a greater shaft power consumption. Under normal operating conditions the average heat-to-power ratios were calculated at 89.91 W/W for the L-fan and 102.48 W/W for the N-fan. Under crosswind conditions of 9 m/s the heat-to-power ratios of the leading edge fan-units decreased by 80.6% and 87.0% for the L-fan and N-fan respectively. However, at the fan-units immediately downstream of the leading edge the heat-to-power ratios only decreased by 34.1% for the L-fan and 64.2% for the N-fan.Louw D.L.Meyer C.J.van der Spuy S.J.EDP SciencesarticleEngineering (General). Civil engineering (General)TA1-2040ENFRMATEC Web of Conferences, Vol 347, p 00016 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Engineering (General). Civil engineering (General) TA1-2040 Louw D.L. Meyer C.J. van der Spuy S.J. Modeling a Large Air-Cooled Condenser
description	This study reports on a modeling strategy for large Air-Cooled Condensers (ACCs). A large 64-fan ACC was modeled under various crosswind conditions that investigated the ACC’s specific axial flow fan configuration. The ACC model was developed in two parts, an axial flow fan model and a heat exchanger model. The axial flow fans were modeled using an Actuator Disk Model (ADM). The heat exchangers’ pressure drop was modeled using the Darcy-Forchheimer porosity model, and the Effectiveness Number of Transfer Units (ε-NTU) method was used to determine the air heat transfer rate. The ACC was configured using two different axial flow fans, identified in this study as the L-fan and the N-fan. Comparatively the L-fan has a steeper fan static pressure characteristic curve than that of the N-fan, at the cost of a greater shaft power consumption. Under normal operating conditions the average heat-to-power ratios were calculated at 89.91 W/W for the L-fan and 102.48 W/W for the N-fan. Under crosswind conditions of 9 m/s the heat-to-power ratios of the leading edge fan-units decreased by 80.6% and 87.0% for the L-fan and N-fan respectively. However, at the fan-units immediately downstream of the leading edge the heat-to-power ratios only decreased by 34.1% for the L-fan and 64.2% for the N-fan.
format	article
author	Louw D.L. Meyer C.J. van der Spuy S.J.
author_facet	Louw D.L. Meyer C.J. van der Spuy S.J.
author_sort	Louw D.L.
title	Modeling a Large Air-Cooled Condenser
title_short	Modeling a Large Air-Cooled Condenser
title_full	Modeling a Large Air-Cooled Condenser
title_fullStr	Modeling a Large Air-Cooled Condenser
title_full_unstemmed	Modeling a Large Air-Cooled Condenser
title_sort	modeling a large air-cooled condenser
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/d4d19bac3eee482d8964a74b2de5b539
work_keys_str_mv	AT louwdl modelingalargeaircooledcondenser AT meyercj modelingalargeaircooledcondenser AT vanderspuysj modelingalargeaircooledcondenser
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Modeling a Large Air-Cooled Condenser

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