# Calculate the theoretical head and mechanical power input if the flow rate is 0.75 m3/s.The presentation must include; 1.the necessary diagrams to explain the problem,

Final terminal assignment #2 Narrated PowerPoint Presentation Assignment 2 [TOTAL MARKS: 40] Create a narrated technical powerpoint presentation of no more than 7 mins duration on the given topic. This presentation must be uploaded to the provided link on moodle by no later thantime and date specified. As this is part of the final terminal assignments for 2021, all deadlines are strict and final. “The construction and analysis of the velocity triangles for given problem and the determination of the theoretical head and mechanical power for this problem” Problem: Dimensions of a centrifugal pump impeller are given in table 1.

The pump is driven at 750 rpm while pumping water. Calculate the theoretical head and mechanical power input if the flow rate is 0.75 m3/s.The presentation must include;

1.the necessary diagrams to explain the problem,

2.the governing equations correctly typeset,

3.the method of constructing the velocity triangles,

4.the solution and the calculations for all necessary velocity vectors, heads and power developed based on the constraints provided in the problem The presentation will be assessed on

•Objective and Purpose of the presentation (5 marks)

•Whether or not the presenter has considered the audience (5 marks)

•The content, its flow and layout of the slides – does the presentation flow, are the slides clear, concise and the level of detail contained (4 marks)

•The narration of each and confidence of presentation (6 marks)

•The accuracy of the construction and solution of the diagrams, formula’s and solution provided. (20 marks)

Page of 79Table 1: Centrifugal pump dataParameterInlet SectionOutlet SectionRadius, r (mm)175500Blade width, b (mm)5030Blade angle, β (deg)6570