Abrasive effects of sediments on impellers of pumps used for catching raw water

Detalhes bibliográficos
Autor(a) principal: Serrano,Rodrigo O. P.
Data de Publicação: 2018
Outros Autores: Castro,Ana L. P. de, Rico,Edwin A. M., Pinto,Maria A., Viana,Edna M. de F., Martinez,Carlos B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000900591
Resumo: ABSTRACT This study presents an analysis of the abrasive effects of sediments from the bed of the Acre River, Brazil, on the wear of three different ferrous materials employed in the manufacture of impellers of centrifuge pumps used to catch raw water. In order to evaluate the abrasive wear and specific wear coefficient (k) as a function of sediment concentration, tests were conducted in samples of SAE 8620 steel, nodular cast iron and gray cast iron by using a rotary-ball abrasion meter. These tests employed abrasive slurry with concentration of 1, 2, 3, 5 and 10 g L-1 of sediments in distilled water. The volume of worn material as a function of the relative velocity of water flow in relation to the impeller blades was mathematically estimated. The experimental results showed that: i) The semi-angular and semi-rounded shapes of the sediments from the Acre River produced evidence of micro-grooving and plastic deformation in the three metallic alloys; ii) SAE 8620 steel showed higher resistance to abrasive wear than samples of gray and nodular cast iron; iii) the increase in the volume of worn material due to increment in sediment concentration and the relative velocity of the mixture (water + sediment) to the rotor pads.
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spelling Abrasive effects of sediments on impellers of pumps used for catching raw waterabrasive wearmicro abrasionsediment concentrationABSTRACT This study presents an analysis of the abrasive effects of sediments from the bed of the Acre River, Brazil, on the wear of three different ferrous materials employed in the manufacture of impellers of centrifuge pumps used to catch raw water. In order to evaluate the abrasive wear and specific wear coefficient (k) as a function of sediment concentration, tests were conducted in samples of SAE 8620 steel, nodular cast iron and gray cast iron by using a rotary-ball abrasion meter. These tests employed abrasive slurry with concentration of 1, 2, 3, 5 and 10 g L-1 of sediments in distilled water. The volume of worn material as a function of the relative velocity of water flow in relation to the impeller blades was mathematically estimated. The experimental results showed that: i) The semi-angular and semi-rounded shapes of the sediments from the Acre River produced evidence of micro-grooving and plastic deformation in the three metallic alloys; ii) SAE 8620 steel showed higher resistance to abrasive wear than samples of gray and nodular cast iron; iii) the increase in the volume of worn material due to increment in sediment concentration and the relative velocity of the mixture (water + sediment) to the rotor pads.Departamento de Engenharia Agrícola - UFCG2018-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000900591Revista Brasileira de Engenharia Agrícola e Ambiental v.22 n.9 2018reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)instname:Universidade Federal de Campina Grande (UFCG)instacron:UFCG10.1590/1807-1929/agriambi.v22n9p519-596info:eu-repo/semantics/openAccessSerrano,Rodrigo O. P.Castro,Ana L. P. deRico,Edwin A. M.Pinto,Maria A.Viana,Edna M. de F.Martinez,Carlos B.eng2018-08-21T00:00:00Zoai:scielo:S1415-43662018000900591Revistahttp://www.scielo.br/rbeaaPUBhttps://old.scielo.br/oai/scielo-oai.php||agriambi@agriambi.com.br1807-19291415-4366opendoar:2018-08-21T00:00Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)false
dc.title.none.fl_str_mv Abrasive effects of sediments on impellers of pumps used for catching raw water
title Abrasive effects of sediments on impellers of pumps used for catching raw water
spellingShingle Abrasive effects of sediments on impellers of pumps used for catching raw water
Serrano,Rodrigo O. P.
abrasive wear
micro abrasion
sediment concentration
title_short Abrasive effects of sediments on impellers of pumps used for catching raw water
title_full Abrasive effects of sediments on impellers of pumps used for catching raw water
title_fullStr Abrasive effects of sediments on impellers of pumps used for catching raw water
title_full_unstemmed Abrasive effects of sediments on impellers of pumps used for catching raw water
title_sort Abrasive effects of sediments on impellers of pumps used for catching raw water
author Serrano,Rodrigo O. P.
author_facet Serrano,Rodrigo O. P.
Castro,Ana L. P. de
Rico,Edwin A. M.
Pinto,Maria A.
Viana,Edna M. de F.
Martinez,Carlos B.
author_role author
author2 Castro,Ana L. P. de
Rico,Edwin A. M.
Pinto,Maria A.
Viana,Edna M. de F.
Martinez,Carlos B.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Serrano,Rodrigo O. P.
Castro,Ana L. P. de
Rico,Edwin A. M.
Pinto,Maria A.
Viana,Edna M. de F.
Martinez,Carlos B.
dc.subject.por.fl_str_mv abrasive wear
micro abrasion
sediment concentration
topic abrasive wear
micro abrasion
sediment concentration
description ABSTRACT This study presents an analysis of the abrasive effects of sediments from the bed of the Acre River, Brazil, on the wear of three different ferrous materials employed in the manufacture of impellers of centrifuge pumps used to catch raw water. In order to evaluate the abrasive wear and specific wear coefficient (k) as a function of sediment concentration, tests were conducted in samples of SAE 8620 steel, nodular cast iron and gray cast iron by using a rotary-ball abrasion meter. These tests employed abrasive slurry with concentration of 1, 2, 3, 5 and 10 g L-1 of sediments in distilled water. The volume of worn material as a function of the relative velocity of water flow in relation to the impeller blades was mathematically estimated. The experimental results showed that: i) The semi-angular and semi-rounded shapes of the sediments from the Acre River produced evidence of micro-grooving and plastic deformation in the three metallic alloys; ii) SAE 8620 steel showed higher resistance to abrasive wear than samples of gray and nodular cast iron; iii) the increase in the volume of worn material due to increment in sediment concentration and the relative velocity of the mixture (water + sediment) to the rotor pads.
publishDate 2018
dc.date.none.fl_str_mv 2018-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000900591
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dc.language.iso.fl_str_mv eng
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dc.relation.none.fl_str_mv 10.1590/1807-1929/agriambi.v22n9p519-596
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eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Departamento de Engenharia Agrícola - UFCG
publisher.none.fl_str_mv Departamento de Engenharia Agrícola - UFCG
dc.source.none.fl_str_mv Revista Brasileira de Engenharia Agrícola e Ambiental v.22 n.9 2018
reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
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instname_str Universidade Federal de Campina Grande (UFCG)
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collection Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
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