Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 6

Liczba wyników na stronie
first rewind previous Strona / 1 next fast forward last
Wyniki wyszukiwania
help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 1 next fast forward last
EN
The results of studies of local hydraulic resistance in polypropylene segmental elbows (R/d ≤ 1) and bends (R/d > 1) in systems of two or more pipe fittings connected in series are analyzed. Qualitative and quantitative formulas for the coefficient of local resistance in pipelines built from elbows and bends connected conformingly (forming spiral loops) or alternatinvely (forming sinusoidal waves) are presented.
EN
The results of studies of friction factor and pressure loss coefficient in polypropylene socket pipes, segmental elbows (R/d < 1) and bends (R/d > I) and in systems of two or more such pipe fittings connected in series are analyzed and interpreted. The approximation of the friction factor of the studied pipelines yielded results which were found to be in quite good agreement with the ones calculated from the Prandtl-Kannan formula (for hydraulically smooth pipes). Formulas for the loss coefficient in pipelines built from elbows and bends connected contbrmingly (forming spiral loops) or alternat-ingly (forming sinusoidal waves) arc presented.
3
Content available remote Straty ciśnienia w układach kształtek z polipropylenu
EN
Quantity research and quality description of local resistances in fittings made from plastics in different types of systems. List of measurements and computations results for local resistance factors with different systems.
4
Content available remote The local resistance in plastic pipe fittings
EN
The results of studies of linear and local hydraulic resistance in polypropylene socket pipes, segmental elbows and bends and in systems of two or more such pipe fittings connected in series are analyzed and interpreted. The approximation of the linear resistance coefficients of the studied pipelines yielded results which were found to be in quite good agreement with the ones calcu-lated from the Prandtl-Karman formula. Qualitative and quantitative formulas for the coefficient of local resistance in pipelines built from elbows and bends connected conformingly or alternatingly are presented.
PL
Przedstawiono analizę i interpretację wyników badań hydraulicznych oporów liniowych oraz miejscowych w rurach kielichowych oraz kolanach i łukach segmentowych z polipropylenu, w tym w układach dwu i więcej kształtek połączonych szeregowo. Odnośnie do współczynnika oporów liniowych badanych rurociągów otrzymano znaczną zgodność wyników aproksymacji ze wzorem Prandtla-Karmana. Przedstawiono zależności jakościowe i wzory ilościowe dla współczynnika oporów miejscowych w układach kolan i łuków zgodnych oraz przemiennych.
EN
Experimental station scheme. Dependence between linear resistance factor and Reynolds' number. Comparison of different values of linear resistance factor calculated by common calculation models for hydraulically smooth pipes. Quantity research and quality description of linear and local resistance in pipelines and hydraulically smooth fittings.
EN
Basic technological diagrams for sewage systems discharge. Flow regulators in sewage systems. Use of storm separators: a flow-through from sewage system to a storage reservoir or directly to a receiver. Working scheme of a storm separator with a bottom sink and accumulating jump.
first rewind previous Strona / 1 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.