Interaction Between High Pressure Releases from Small Holes and the Ground Surface

High-pressure releases are a significant concern in industrial safety, particularly when they involve flammable gases, as these can have severe consequences for both workers and the environment. Common flammable compounds include methane, propane, and hydrogen — the latter being a relatively recent...

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Main Authors: Alessandro Pinciroli, Renato Rota, Valentina Busini
Format: Article
Language:English
Published: AIDIC Servizi S.r.l. 2025-06-01
Series:Chemical Engineering Transactions
Online Access:https://www.cetjournal.it/index.php/cet/article/view/15155
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author Alessandro Pinciroli
Renato Rota
Valentina Busini
author_facet Alessandro Pinciroli
Renato Rota
Valentina Busini
author_sort Alessandro Pinciroli
collection DOAJ
description High-pressure releases are a significant concern in industrial safety, particularly when they involve flammable gases, as these can have severe consequences for both workers and the environment. Common flammable compounds include methane, propane, and hydrogen — the latter being a relatively recent energy carrier gaining traction in various applications. High-pressure releases are notable for their high momentum, which can extend the flammable cloud over considerable distances and potentially cause damage to vulnerable structures. One well-known fluid behavior is the Coanda effect, which occurs near flat surfaces such as the ground. In the event of a high-pressure release, this effect can further expand the flammable area. Previous studies have explored the influence of the ground on the extension of high-pressure jets from large orifices. This work aims to investigate releases from small orifices to understand their behavior near the ground and determine whether they can be treated similarly to larger releases. Further investigation is also focused on determining whether the low release height allows the jet to hit the ground due to its natural opening angle and the possible incidence of this phenomenon in relation to the Coanda effect.
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spelling doaj-art-f9be58d910f44e79a8fb9fc081fbe8112025-08-20T03:16:01ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162025-06-01116Interaction Between High Pressure Releases from Small Holes and the Ground SurfaceAlessandro PinciroliRenato RotaValentina BusiniHigh-pressure releases are a significant concern in industrial safety, particularly when they involve flammable gases, as these can have severe consequences for both workers and the environment. Common flammable compounds include methane, propane, and hydrogen — the latter being a relatively recent energy carrier gaining traction in various applications. High-pressure releases are notable for their high momentum, which can extend the flammable cloud over considerable distances and potentially cause damage to vulnerable structures. One well-known fluid behavior is the Coanda effect, which occurs near flat surfaces such as the ground. In the event of a high-pressure release, this effect can further expand the flammable area. Previous studies have explored the influence of the ground on the extension of high-pressure jets from large orifices. This work aims to investigate releases from small orifices to understand their behavior near the ground and determine whether they can be treated similarly to larger releases. Further investigation is also focused on determining whether the low release height allows the jet to hit the ground due to its natural opening angle and the possible incidence of this phenomenon in relation to the Coanda effect.https://www.cetjournal.it/index.php/cet/article/view/15155
spellingShingle Alessandro Pinciroli
Renato Rota
Valentina Busini
Interaction Between High Pressure Releases from Small Holes and the Ground Surface
Chemical Engineering Transactions
title Interaction Between High Pressure Releases from Small Holes and the Ground Surface
title_full Interaction Between High Pressure Releases from Small Holes and the Ground Surface
title_fullStr Interaction Between High Pressure Releases from Small Holes and the Ground Surface
title_full_unstemmed Interaction Between High Pressure Releases from Small Holes and the Ground Surface
title_short Interaction Between High Pressure Releases from Small Holes and the Ground Surface
title_sort interaction between high pressure releases from small holes and the ground surface
url https://www.cetjournal.it/index.php/cet/article/view/15155
work_keys_str_mv AT alessandropinciroli interactionbetweenhighpressurereleasesfromsmallholesandthegroundsurface
AT renatorota interactionbetweenhighpressurereleasesfromsmallholesandthegroundsurface
AT valentinabusini interactionbetweenhighpressurereleasesfromsmallholesandthegroundsurface