Quantification of energy loss in two grated inlets under pressure
Visualitza/Obre
Cita com:
hdl:2117/330884
Tipus de documentArticle
Data publicació2020-06
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
:
Reconeixement 3.0 Espanya
Abstract
Grated inlets have the normal function of collecting the surface runoff into sewer networks, but when the flow exceeds the capacity of the sewer pipes and conduits get pressurized, an outflow from the sewer manholes and grates can occur. In this case, the grate produces an energy loss in the outflow from sewer to street that could be hydraulically quantified characterizing this kind of flow. Energy loss analysis in trash racks can be found in technical literature, but no specific studies on sewer grate inlets have been found. For this reason, some experiments in full scale were developed in the hydraulic laboratory of the Technical University of Catalonia (UPC) in order to quantify hydraulic energy losses associated with flow through grated inlets during surcharging conditions. The main goal of this research work was to experimentally quantify the values of the local loss coefficient k for two different surcharged real scale grated inlets existing in Barcelona. For the tested overflows between 20 and 50 L/s, a range from 0.25 to 3.41 was observed for k coefficients under different average velocities of reference and different flow conditions.
CitacióTellez, J.-D.; Gomez, M.; Russo, B. Quantification of energy loss in two grated inlets under pressure. "Water", Juny 2020, vol. 12, núm. 6, p. 1601:1-1601:14.
ISSN2073-4441
Versió de l'editorhttps://www.mdpi.com/2073-4441/12/6/1601
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
29389843.pdf | 2,540Mb | Visualitza/Obre |