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Design adjustment of vacuum ejector assembly for medical application
 Boháč, Petr ; Štefan, David (referee) ; Návrat, Tomáš (advisor)
This bachelor's thesis deals with the design of a two-stage suction ejector for medical use with the working name Medieject II. The proposed modifications are to achieve a reduction in the value of the created vacuum compared to the original value, and thus also enable a more precise regulation of the created vacuum. The first part of the thesis presents the theoretical assumptions, functions and requirements for a multistage suction ejector, which is to serve in a medical environment. The second part describes the analytical calculation of the original variant, which serves as a partial check of subsequent numerical simulations. The third part deals with CFD simulations, which are used as the main solving method for adjustments. Using flow simulations two design modifications and their several partial variants are proposed. Then these modifications are supported by experiment. The second design proposal will be used to manufacture equipment that will fulfill the requirements.
Detailed record
Design adjustment of vacuum ejector assembly for medical application
 Boháč, Petr ; Štefan, David (referee) ; Návrat, Tomáš (advisor)
This bachelor's thesis deals with the design of a two-stage suction ejector for medical use with the working name Medieject II. The proposed modifications are to achieve a reduction in the value of the created vacuum compared to the original value, and thus also enable a more precise regulation of the created vacuum. The first part of the thesis presents the theoretical assumptions, functions and requirements for a multistage suction ejector, which is to serve in a medical environment. The second part describes the analytical calculation of the original variant, which serves as a partial check of subsequent numerical simulations. The third part deals with CFD simulations, which are used as the main solving method for adjustments. Using flow simulations two design modifications and their several partial variants are proposed. Then these modifications are supported by experiment. The second design proposal will be used to manufacture equipment that will fulfill the requirements.
Detailed record

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