Preliminary investigation of centrifugal pump for fire engine
This preliminary work deals with analytical, numerical and experimental investigation of centrifugal pump for fire engine. The pump was investigated experimentally and power curves as dependence of head on flow rate were carried out. Numerical research focused on finding of setup of numerical solver...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2018-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | https://doi.org/10.1051/matecconf/201821004015 |
| _version_ | 1818339087684206592 |
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| author | Dvořák Václav Müller Miloš |
| author_facet | Dvořák Václav Müller Miloš |
| author_sort | Dvořák Václav |
| collection | DOAJ |
| description | This preliminary work deals with analytical, numerical and experimental investigation of centrifugal pump for fire engine. The pump was investigated experimentally and power curves as dependence of head on flow rate were carried out. Numerical research focused on finding of setup of numerical solver. All curves were compared, analysed and problematic places were identified. It was found that for very low backpressure, i.e. head coefficient, cavitation occurs around the propeller wheel and reduces maximum flow coefficient significantly. After modifying the wheel by sharpening leading edges of blades, or when rotation speed was increased, cavitation got even worse. Another issue is related with stator blades. It seems that stator blades work perfectly only in short range of regimes. Stator blades represent another resistance for low back pressure, while for higher back pressure, stator blades fail to decelerate the flow and increase static pressure. Several modification were suggested to increase performance of the fire engine. |
| first_indexed | 2024-12-13T15:21:26Z |
| format | Article |
| id | doaj.art-5092b20c34974f93b422450607fdb492 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-13T15:21:26Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-5092b20c34974f93b422450607fdb4922022-12-21T23:40:33ZengEDP SciencesMATEC Web of Conferences2261-236X2018-01-012100401510.1051/matecconf/201821004015matecconf_cscc2018_04015Preliminary investigation of centrifugal pump for fire engineDvořák VáclavMüller MilošThis preliminary work deals with analytical, numerical and experimental investigation of centrifugal pump for fire engine. The pump was investigated experimentally and power curves as dependence of head on flow rate were carried out. Numerical research focused on finding of setup of numerical solver. All curves were compared, analysed and problematic places were identified. It was found that for very low backpressure, i.e. head coefficient, cavitation occurs around the propeller wheel and reduces maximum flow coefficient significantly. After modifying the wheel by sharpening leading edges of blades, or when rotation speed was increased, cavitation got even worse. Another issue is related with stator blades. It seems that stator blades work perfectly only in short range of regimes. Stator blades represent another resistance for low back pressure, while for higher back pressure, stator blades fail to decelerate the flow and increase static pressure. Several modification were suggested to increase performance of the fire engine.https://doi.org/10.1051/matecconf/201821004015 |
| spellingShingle | Dvořák Václav Müller Miloš Preliminary investigation of centrifugal pump for fire engine MATEC Web of Conferences |
| title | Preliminary investigation of centrifugal pump for fire engine |
| title_full | Preliminary investigation of centrifugal pump for fire engine |
| title_fullStr | Preliminary investigation of centrifugal pump for fire engine |
| title_full_unstemmed | Preliminary investigation of centrifugal pump for fire engine |
| title_short | Preliminary investigation of centrifugal pump for fire engine |
| title_sort | preliminary investigation of centrifugal pump for fire engine |
| url | https://doi.org/10.1051/matecconf/201821004015 |
| work_keys_str_mv | AT dvorakvaclav preliminaryinvestigationofcentrifugalpumpforfireengine AT mullermilos preliminaryinvestigationofcentrifugalpumpforfireengine |