Flow rate dynamics of pressure-compensating drippers under clogging effect
ABSTRACT The clogging dynamics of pressure-compensating drippers is still poorly addressed, and its understanding is quite important to control clogging. The aim of this study was to evaluate the flow performance of pressure-compensating drippers under clogging effect. Eight pressure-compensating em...
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Universidade Federal de Campina Grande
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doaj-a360bb9f53a8456ba4ca895ed21adaa42020-11-25T02:44:03ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental - Agriambi1807-192921530430910.1590/1807-1929/agriambi.v21n5p304-309S1415-43662017000500304Flow rate dynamics of pressure-compensating drippers under clogging effectMarinaldo F. PintoBruno MolleDinara G. AlvesNassim Ait-MouhebAntonio P. de CamargoJosé A. FrizzoneABSTRACT The clogging dynamics of pressure-compensating drippers is still poorly addressed, and its understanding is quite important to control clogging. The aim of this study was to evaluate the flow performance of pressure-compensating drippers under clogging effect. Eight pressure-compensating emitters, model J-SC Jain PC-PLUS with nominal flow rate of 2.2 L h-1 were evaluated. The tests were run for 8 h d-1 for 4 weeks, a total of 160 h. Every 40 h, the concentration and granulometry of suspended particles were increased, by adding 125 mg L-1 of solids, composed of sand. The flow rate of the emitters was determined using a weight measurement system. Flow rate variations of the emitters did not follow a defined pattern. Clogging seems to occur randomly and abruptly. Sometimes the flow rate exceeded the nominal value (maximum relative flow rate of 182%) and other times it was lower than the nominal value (minimum relative flow rate of 0%).http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000500304&lng=en&tlng=enemissoresirrigação localizadaentupimento |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Marinaldo F. Pinto Bruno Molle Dinara G. Alves Nassim Ait-Mouheb Antonio P. de Camargo José A. Frizzone |
spellingShingle |
Marinaldo F. Pinto Bruno Molle Dinara G. Alves Nassim Ait-Mouheb Antonio P. de Camargo José A. Frizzone Flow rate dynamics of pressure-compensating drippers under clogging effect Revista Brasileira de Engenharia Agrícola e Ambiental - Agriambi emissores irrigação localizada entupimento |
author_facet |
Marinaldo F. Pinto Bruno Molle Dinara G. Alves Nassim Ait-Mouheb Antonio P. de Camargo José A. Frizzone |
author_sort |
Marinaldo F. Pinto |
title |
Flow rate dynamics of pressure-compensating drippers under clogging effect |
title_short |
Flow rate dynamics of pressure-compensating drippers under clogging effect |
title_full |
Flow rate dynamics of pressure-compensating drippers under clogging effect |
title_fullStr |
Flow rate dynamics of pressure-compensating drippers under clogging effect |
title_full_unstemmed |
Flow rate dynamics of pressure-compensating drippers under clogging effect |
title_sort |
flow rate dynamics of pressure-compensating drippers under clogging effect |
publisher |
Universidade Federal de Campina Grande |
series |
Revista Brasileira de Engenharia Agrícola e Ambiental - Agriambi |
issn |
1807-1929 |
description |
ABSTRACT The clogging dynamics of pressure-compensating drippers is still poorly addressed, and its understanding is quite important to control clogging. The aim of this study was to evaluate the flow performance of pressure-compensating drippers under clogging effect. Eight pressure-compensating emitters, model J-SC Jain PC-PLUS with nominal flow rate of 2.2 L h-1 were evaluated. The tests were run for 8 h d-1 for 4 weeks, a total of 160 h. Every 40 h, the concentration and granulometry of suspended particles were increased, by adding 125 mg L-1 of solids, composed of sand. The flow rate of the emitters was determined using a weight measurement system. Flow rate variations of the emitters did not follow a defined pattern. Clogging seems to occur randomly and abruptly. Sometimes the flow rate exceeded the nominal value (maximum relative flow rate of 182%) and other times it was lower than the nominal value (minimum relative flow rate of 0%). |
topic |
emissores irrigação localizada entupimento |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000500304&lng=en&tlng=en |
work_keys_str_mv |
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1724767754325590016 |