Data/hora: 10/06/2024 07:44:26

Provedor de dados: | 70
País: | Brazil
Título: | EVALUATION OF SELF COMPENSATING EMITTERS IRRIGATING WITH SALINE WATER: PART II: PROCESS CAPABILITY INDEX
Autores: | Silva,Patrícia F. Da; Dantas Neto,José; Lima,VERA L. A. DE; Santos,Delfran B. Dos; Ribeiro,Pedro H. P.
Data: | 2016-12-01
Ano: | 2016
Palavras-chave: | Quality engineering; Flow; Quality control; Christiansen uniformity.
Resumo: | ABSTRACT The use of tools such as process capability index for irrigation aims to observe how this irrigation is adequate in terms of quality. The aim of the study was analyzing the Christiansen uniformity coefficient and the flow of a drip irrigation system with self-compensating emitters under water different salt concentrations, using the process capability index. The research was conducted in a greenhouse at the Federal University of Campina Grande (UFCG). The experimental design was a randomized block in a factorial 5 x 2 with three replications, the factors consisted of five levels of irrigation water salinity (CEw) (0.6, 1.5, 2.5, 3.5 and 4.5 dS m−1 at 25°C) and two running times (0 and 350 hours of operation). The Christiansen uniformity coefficient (CUC) for new and used emitters was greater than 90%, in different salt concentrations studied. The flow of emitters is maintained within the statistical quality control, since management and maintenance operations are made after 350 hours of operation. The potential process capability index for the Christiansen uniformity coefficient was higher than recommended for new and used emitters, being the process within the required specifications.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000601086
Editor: | Associação Brasileira de Engenharia Agrícola
Relação: | 10.1590/1809-4430-eng.agric.v36n6p1086-1095/2016
Formato: | text/html
Fonte: | Engenharia Agrícola  v.36 n.6 2016
Fonte: | info:eu-repo/semantics/openAccess