Technical gazette, Vol. 14 No. 3,4, 2007.
Professional paper
Influence of hybrid pumps rotor construction on cavitation occurrence and pumps efficiency
Sead Delalić
Mišo Hudjec
Indira Buljubašić
Haris Memić
Abstract
Pumps that are used for fluids transportation are mostly rotary. They represent such a constructional solution that is supposed to overcome a problem of gas bubbles presence in the fluid causing it to become a mixture of liquid and gas at the pump inlet. Such occurrences of fluid mass are inevitable in many technology processes. Pumps, which would have such a constructional solution and designed characteristics that could solve mentioned transportation problems, would certainly have a significant application in many industrial fields. However, manufacturing costs
of such pumps would have to be the same or smaller compared to existing solutions, while the efficiency would have to be similar to the one for rotary pumps. Therefore, some tests were carried out on hybrid pumps in order to determine in which way their efficiency might be increased to the level similar for rotary pumps. With an aim of having a flow regime as similar as possible to the standard rotary pump; several tests were carried out on pump performance characteristics with different flow regimes and different constructions of rotor. A special attention was paid to occurrence of cavitations and its influence on performance characteristics and pump life.
Keywords
hybrid pump; cavitation; rotor; efficiency
Hrčak ID:
18911
URI
Publication date:
31.12.2007.
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