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Deear All, Thank you for the contributes; the problem was a real gardening problem, however data are not available; If you like, consider the following pump as reference: Output: 1 HP, Outlet: 2" Rated: H 7.5 (M), Q 220 (L/M) Maximum: H 12 (M), Q 450 (L/M) Dimension: 350 L x 162 W x...

Thanks for the contributes, I don't have specific data for the garden pump: Supposing the following partial further information available: Impeller Diameter: 200mm Number of Vanes: 10 Approach Angle of Vanes:5% Numero di stadi:1 Many Thanks, Max

Thank you for your answer. The head so evaluated is anyway inclusive of the ( garden-hose )pressure losses. Thanks, Max

Thank you for your answer; There is the need of a further clarification: my question is how to evaluate a priori if the pump can do it ( given the flow-rate )? Thanks Max

Dear All, More than a process engineering question, it could be considered a gardening problem. How to determine the Centrifugal Pump Head for a given flowrate without using a Pressure Gauge? ( Characteristic Curves are not available ) Best regards, Max

In order to apply the suggested criterion, how can I quickly estimate the rate of change of the temperature?

I would be interested in knowing both the cases: 1) No Heat Trasfer to Fluid ( is there an analytical solution ? ) 2) No heat transfer from the outside surroundings thanks

Dear All, I need to determine the Vessel Wall Temperature after Gas depressurization trough an orifice ( API 521 ) and to verify the necessity of applying Low Temperature Carbon Steel. I know the possibility of using Hysys ( ASPEN Tech. )Depressurization Utility, however I have the following...

Dear All, I need to determine the Wall Vessel Temperature after Gas depressurization trough an orifice ( API 521 ) and to verify the necessity of applying Low Temperature Carbon Steel. I know the possibility of using Hysys ( ASPEN Tech. )Depressurization Utility, however I have the following...