Research working paper series. development of PVC well screens for local fabrication in developing countries / Sternberg, Y.

Public ISBD Titre de série : Research working paper series Titre : development of PVC well screens for local fabrication in developing countries Type de document : texte imprimé Auteurs : Sternberg, Y. Mention d'édition : IBRD Editeur : IBRD Année de publication : 1978 ISBN/ISSN/EAN : CI-05924 Note générale : In rural areas of developing countries, the cheapest and safest source of water is usually groundwater. Pipe suitable for PVC well casings is manufactued in a number of developing countries, but high efficiency PVC development of a well screens have to be imported. This paper describes the development of a well screen that can be made in most developing countries: PVC is extrued through a special die to form a pipe with internal stiffening ribs. Langues : Anglais (eng) Mots-clés : PUITS  Exhaure de l'eau  Materiel de construction  Pays en développement  Hydraulique  PVC  Fabrication Index. décimale : 621.2 Hydraulique : turbines, pompes, accumulateurs, transmission hydraulique Résumé : In rural areas of developing countries, the cheapest and safest source of water is usually groundwater. Pipe suitable for PVC well casings is manufactued in a number of developing countries, but high efficiency PVC development of a well screens have to be imported. This paper describes the development of a well screen that can be made in most developing countries: PVC is extrued through a special die to form a pipe with internal stiffening ribs. Note de contenu : In rural areas of developing countries, the cheapest and safest source of water is usually groundwater. Pipe suitable for PVC well casings is manufactued in a number of developing countries, but high efficiency PVC development of a well screens have to be imported. This paper describes the development of a well screen that can be made in most developing countries: PVC is extrued through a special die to form a pipe with internal stiffening ribs. Research working paper series. development of PVC well screens for local fabrication in developing countries [texte imprimé] / Sternberg, Y.  . -  IBRD . - IBRD, 1978. ISSN : CI-05924 In rural areas of developing countries, the cheapest and safest source of water is usually groundwater. Pipe suitable for PVC well casings is manufactued in a number of developing countries, but high efficiency PVC development of a well screens have to be imported. This paper describes the development of a well screen that can be made in most developing countries: PVC is extrued through a special die to form a pipe with internal stiffening ribs. Langues : Anglais (eng) Mots-clés : PUITS  Exhaure de l'eau  Materiel de construction  Pays en développement  Hydraulique  PVC  Fabrication Index. décimale : 621.2 Hydraulique : turbines, pompes, accumulateurs, transmission hydraulique Résumé : In rural areas of developing countries, the cheapest and safest source of water is usually groundwater. Pipe suitable for PVC well casings is manufactued in a number of developing countries, but high efficiency PVC development of a well screens have to be imported. This paper describes the development of a well screen that can be made in most developing countries: PVC is extrued through a special die to form a pipe with internal stiffening ribs. Note de contenu : In rural areas of developing countries, the cheapest and safest source of water is usually groundwater. Pipe suitable for PVC well casings is manufactued in a number of developing countries, but high efficiency PVC development of a well screens have to be imported. This paper describes the development of a well screen that can be made in most developing countries: PVC is extrued through a special die to form a pipe with internal stiffening ribs.

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Research working paper series, Res 11. Design of low-cost water distribution systems / Lanria, D. T.

Public ISBD Titre de série : Research working paper series, Res 11 Titre : Design of low-cost water distribution systems Type de document : texte imprimé Auteurs : Lanria, D. T. ; Kolsky, P. J. ; Modoleton, R. N. Mention d'édition : Energy, water and telecommunications department Editeur : Energy, water and telecommunications department Année de publication : 1977 ISBN/ISSN/EAN : CI-06100 Note générale : This paper presents the results of rigorous analyses of secondary distribution systems for several urban areas on developing countries/ from these analyse, simple mathematical models are developed which permit prediction of total pipe length, overage diameter and network cost given decisions on variables such as per capita usage and spacing of public standpipes or house conventions. Examples are given of the application of these equations to typical design problems. Mots-clés : Hydraulique urbaine  Distribution de l'eau Index. décimale : 621.2 Hydraulique : turbines, pompes, accumulateurs, transmission hydraulique Résumé : This paper presents the results of rigorous analyses of secondary distribution systems for several urban areas on developing countries/ from these analyse, simple mathematical models are developed which permit prediction of total pipe length, overage diameter and network cost given decisions on variables such as per capita usage and spacing of public standpipes or house conventions. Examples are given of the application of these equations to typical design problems. Note de contenu : This paper presents the results of rigorous analyses of secondary distribution systems for several urban areas on developing countries/ from these analyse, simple mathematical models are developed which permit prediction of total pipe length, overage diameter and network cost given decisions on variables such as per capita usage and spacing of public standpipes or house conventions. Examples are given of the application of these equations to typical design problems. Research working paper series, Res 11. Design of low-cost water distribution systems [texte imprimé] / Lanria, D. T. ; Kolsky, P. J. ; Modoleton, R. N.  . -  Energy, water and telecommunications department . - Energy, water and telecommunications department, 1977. ISSN : CI-06100 This paper presents the results of rigorous analyses of secondary distribution systems for several urban areas on developing countries/ from these analyse, simple mathematical models are developed which permit prediction of total pipe length, overage diameter and network cost given decisions on variables such as per capita usage and spacing of public standpipes or house conventions. Examples are given of the application of these equations to typical design problems. Mots-clés : Hydraulique urbaine  Distribution de l'eau Index. décimale : 621.2 Hydraulique : turbines, pompes, accumulateurs, transmission hydraulique Résumé : This paper presents the results of rigorous analyses of secondary distribution systems for several urban areas on developing countries/ from these analyse, simple mathematical models are developed which permit prediction of total pipe length, overage diameter and network cost given decisions on variables such as per capita usage and spacing of public standpipes or house conventions. Examples are given of the application of these equations to typical design problems. Note de contenu : This paper presents the results of rigorous analyses of secondary distribution systems for several urban areas on developing countries/ from these analyse, simple mathematical models are developed which permit prediction of total pipe length, overage diameter and network cost given decisions on variables such as per capita usage and spacing of public standpipes or house conventions. Examples are given of the application of these equations to typical design problems.

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