L valve study through dimensionless numbers

L valve is a right angled, L shaped pipe applied to transfer solids between two vessels. This device uses gas injection and pipe geometry for controlling the flow of particulate solids. This kind of non-mechanical valve is used in processes such as pneumatic transport lines and circulating fluidized...

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Autores principales:	Cristiano Kuhn,Gabriel, Sperb Indrusiak,Maria Luiza, Shadle,Lawrence
Lenguaje:	English
Publicado:	Universidad de Tarapacá. 2016
Materias:	L valve dimensional analysis experimental data granular flow Buckingham PI
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052016000500008
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spelling	oai:scielo:S0718-330520160005000082016-09-05L valve study through dimensionless numbersCristiano Kuhn,GabrielSperb Indrusiak,Maria LuizaShadle,Lawrence L valve dimensional analysis experimental data granular flow Buckingham PI L valve is a right angled, L shaped pipe applied to transfer solids between two vessels. This device uses gas injection and pipe geometry for controlling the flow of particulate solids. This kind of non-mechanical valve is used in processes such as pneumatic transport lines and circulating fluidized beds. This study aims to develop a new correlation to the solids mass flow rate through dimensional analysis, experimental data and equation fitting. An accurately way to estimate the flow of solids makes easier the design and control of the valve. This study is limited to the influence of L valve geometry, gas injection and particle properties. A test section was built, comprising two valve diameters (acrylic pipes of 34 and 70 mm). Glass beads were used as solids (Sauter diameter 0.8 mm, bulk density 1,580 kg/m³, group D of Geldart classification) and were conveyed by air. Dimensionless numbers were calculated (by Buckingham PI theorem) from the variables of the process, then an experimental program was done. Based on experimental data, π1, π2 and π3 values were calculated for each test. Mass flux is one variable of π1. Then a chart was created and a best fit equation was found based on π1, π2 and π3. Dimensionless numbers were replaced by their equations calculated by Buckingham PI Theorem and solids mass flux can be isolated.info:eu-repo/semantics/openAccessUniversidad de Tarapacá.Ingeniare. Revista chilena de ingeniería v.24 n.Especial 20162016-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052016000500008en10.4067/S0718-33052016000500008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	L valve dimensional analysis experimental data granular flow Buckingham PI
spellingShingle	L valve dimensional analysis experimental data granular flow Buckingham PI Cristiano Kuhn,Gabriel Sperb Indrusiak,Maria Luiza Shadle,Lawrence L valve study through dimensionless numbers
description	L valve is a right angled, L shaped pipe applied to transfer solids between two vessels. This device uses gas injection and pipe geometry for controlling the flow of particulate solids. This kind of non-mechanical valve is used in processes such as pneumatic transport lines and circulating fluidized beds. This study aims to develop a new correlation to the solids mass flow rate through dimensional analysis, experimental data and equation fitting. An accurately way to estimate the flow of solids makes easier the design and control of the valve. This study is limited to the influence of L valve geometry, gas injection and particle properties. A test section was built, comprising two valve diameters (acrylic pipes of 34 and 70 mm). Glass beads were used as solids (Sauter diameter 0.8 mm, bulk density 1,580 kg/m³, group D of Geldart classification) and were conveyed by air. Dimensionless numbers were calculated (by Buckingham PI theorem) from the variables of the process, then an experimental program was done. Based on experimental data, π1, π2 and π3 values were calculated for each test. Mass flux is one variable of π1. Then a chart was created and a best fit equation was found based on π1, π2 and π3. Dimensionless numbers were replaced by their equations calculated by Buckingham PI Theorem and solids mass flux can be isolated.
author	Cristiano Kuhn,Gabriel Sperb Indrusiak,Maria Luiza Shadle,Lawrence
author_facet	Cristiano Kuhn,Gabriel Sperb Indrusiak,Maria Luiza Shadle,Lawrence
author_sort	Cristiano Kuhn,Gabriel
title	L valve study through dimensionless numbers
title_short	L valve study through dimensionless numbers
title_full	L valve study through dimensionless numbers
title_fullStr	L valve study through dimensionless numbers
title_full_unstemmed	L valve study through dimensionless numbers
title_sort	l valve study through dimensionless numbers
publisher	Universidad de Tarapacá.
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-33052016000500008
work_keys_str_mv	AT cristianokuhngabriel lvalvestudythroughdimensionlessnumbers AT sperbindrusiakmarialuiza lvalvestudythroughdimensionlessnumbers AT shadlelawrence lvalvestudythroughdimensionlessnumbers
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L valve study through dimensionless numbers

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