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Author: Alvaro Hernandez Roman
Publisher:
ISBN:
Category :
Languages : es
Pages :
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Author: Alvaro Hernandez Roman
Publisher:
ISBN:
Category :
Languages : es
Pages :
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Author: Eugenio Franco Delgado
Publisher:
ISBN:
Category :
Languages : es
Pages : 108
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Author: Abel Fernando Montes de Oca Grandi
Publisher:
ISBN:
Category :
Languages : es
Pages :
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Author: Luis Eduardo Diaz Florez
Publisher:
ISBN:
Category :
Languages : es
Pages :
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EL PROYECTO TIENE COMO FIN DESARROLLAR E IMPLEMENTAR UNA PRACTICA DE LABORATORIO, EN LA CUAL ES ESTUDIANTE PUEDA VERIFICAR LOS FENOMENOS ASOCIADOS CON LA PRESENCIA DE LA CAVITACION EN BOMBAS CENTRIFUGAS Y ADICIONALMENTE ESTE EN CAPACIDAD DE CONSTRUIR LA CURVA DE COMPORTAMIENTO NPSHR VS. Q (CABEZA NETA PORSITIVA DE SUCCION REQUERIDA VS. CAUDAL) Y H V.S Q (CABEZA VS CAUDAL). PARA UNA PEQUEÑA BOMBA CENTRIFUGA (DE POTENCIA INFERIOR A 1 KW). PARA EL DESARROLLO DEL PROYECTO SE PROCEDIO A DISEÑAR EL BANCO PARA ENSAYOS DE CAVITACION , ACORDE CON LAS NORMAS ESTABLECIDAS PARA ESTE TIPO DE PRUEBAS (NTC 4990 Y EL CODIGO ASME, PERFORMANCE TEST CODE, CENTRIFUGAL PUMS, 8.2-1965). EL BANCO CONSISTE ESENCIALMENTE DE UN DEPOSITO SELLADO, UNA BOMBA CENTRIFUGA, MANOMETROS, VALVULA DE CONTROL DE FLUJO, MEDIDOR DE FLUJO Y UN CONJUNTO DE ACCESORIOS Y TUBERIAS QUE CONFIGURAN UN CIRCUITO CERRADO. DESPUES DEL DISEÑO PRELIMINAR DEL CIRCUITO, SE PROCEDIO A ADECUAR UN DEPOSITO QUE SE ADQUIRIO EN EL COMERCIO, PARA LO CUAL SE VERIFICO PREVIAMENTE SI EL MATERIAL DEL TANQUE CUMPLIA CON LOS REQUISITOS MECANICOS EXIGIDOS PARA EL DESARROLLO DE LAS PRUEBAS (PRESION DE VACIO). SE DISEÑO UNA ESTRUCTURA QUE PERMITIERA EL MONTAJE DEL SISTEMA DE BOMBEO: TANQUE, TUVERIA, ACCESORIOS Y BOMBA. DADO QUE EL SISTEMA CONSTITUYE UN CIRCUITO CERRADO, LA ALTURA DE LA BOMBA "H" PARA UN DETERMINADO CAUDAL DE OPERACION DEBE PERMANECER CONSTANTE INDEPENDIENTEMENTE DE LA PRESION QUE SE TENGA EN EL DEPOSITO DE SUCCION. LA PRUEBA CONSISTE EN POSICIONAR LA VALVULA DE CONTROL DE FLUJO UBICADA EN LA DESCARGA DE LA BOMBA Y VARIA PAULATINAMENTE LA PRESION DEL DEPOSITO DE SUCCION MEDIANTE LA APLICACION DE VACIO, REGISTRANDO EL CAUDAL Y LAS PRESIONES DE SUCCION Y DESCARGA. LA DISMINUCION DE LA ALGUTURA "H" DE LA BOMBA EN UN 3% DEL VALOR ORIGINAL SERA UN INDICATIVO DE LA PRESENCIA DE LA CAVITACION. LA PRUEBA SE REPITE PARA VARIOS CAUDALES DE OPERACION. LA INFORMACION REGISTRADA PERMITE CONSTRUIR LA CURVA NPSHR VS. CAUDAL....
Author: Elizabeth Tilley
Publisher:
ISBN: 9783906484570
Category :
Languages : en
Pages : 176
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Author: David M. Robbins
Publisher: IWA Publishing
ISBN: 178040476X
Category : Science
Languages : en
Pages : 148
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This is a practical handbook providing a step-by-step approach to the techniques used for characterizing wastewater sources and investigating sites where collection, treatment and reuse/disposal technologies will be installed. It is intended to help enable local implementation of on-site and decentralized wastewater management system (DWMS)for wide scale use in development settings. How to Design Wastewater Systems for Local Conditions in Developing Countries helps local service providers and regulatory officials make informed decisions through the use of tools, checklists and case studies. It includes a link to a web based community of on-site and decentralized wastewater professionals, which contains related tools and case studies. This handbook serves as a reference for training classes, certification programs, and higher education programs in civil and sanitary engineering. There is an increasing interest on the part of local government officials and private sector service providers to implement wastewater treatment systems to solve sanitation problems. The model presented in this handbook promotes activities that first generate data related to source and site conditions that represent critical inputs, and then applies this information to the technology selection process. Matching the most appropriate technologies to the specific needs of the wastewater project is the key that leads to long term sustainability. How to Design Wastewater Systems for Local Conditions in Developing Countries is an invaluable resource for public sector decision makers and private sector service providers in developing countries. It is also a useful text for students at engineering colleges in developing countries interested in taking a class that teaches the methods of decentralized wastewater management system (DWMS) development.
Author:
Publisher: UNICEF
ISBN: 9280643762
Category : Business & Economics
Languages : en
Pages : 244
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This Child-Friendly Schools (CFS) Manual was developed during three-and-a-half years of continuous work, involving the United Nations Children's Fund education staff and specialists from partner agencies working on quality education. It benefits from fieldwork in 155 countries and territories, evaluations carried out by the Regional Offices and desk reviews conducted by headquarters in New York. The manual is a part of a total resource package that includes an e-learning package for capacity-building in the use of CFS models and a collection of field case studies to illustrate the state of the art in child-friendly schools in a variety of settings.
Author: Mark Davies
Publisher: Routledge
ISBN: 1134874537
Category : Foreign Language Study
Languages : en
Pages : 1457
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A Frequency Dictionary of Spanish has been fully revised and updated, including over 500 new entries, making it an invaluable resource for students of Spanish. Based on a new web-based corpus containing more than 2 billion words collected from 21 Spanish-speaking countries, the second edition of A Frequency Dictionary of Spanish provides the most expansive and up-to-date guidelines on Spanish vocabulary. Each entry is accompanied with an illustrative example and full English translation. The Dictionary provides a rich resource for language teaching and curriculum design, while a separate CD version provides the full text in a tab-delimited format ideally suited for use by corpus and computational linguistics. With entries arranged both by frequency and alphabetically, A Frequency Dictionary of Spanish enables students of all levels to get the most out of their study of vocabulary in an engaging and efficient way.
Author: Jose M. Herrou Aragon
Publisher: José M. Herrou Aragón
ISBN: 1471725693
Category : Religion
Languages : en
Pages : 107
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Book Description
Gnosis means knowledge. But we are not referring to just any knowledge. Gnosis is knowledge which produces a great transformation in those who receive it. Knowledge capable of nothing less than waking up man and helping him to escape from the prison in which he finds himself. That is why Gnosis has been so persecuted throughout the course of history, because it is knowledge considered dangerous for the religious and political authorities who govern mankind from the shadows. Every time this religion, absolutely different from the rest, appears before man, the other religions unite to try to destroy or hide it again. Primordial Gnosis is the original Gnosis, true Gnosis, eternal Gnosis, Gnostic knowledge in its pure form. Due to multiple persecutions, Primordial Gnosis has been fragmented, distorted and hidden.
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 110
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