Determine the rotational speed and diameter of the runner

Assignment Help Mechanical Engineering

Reference no: EM13929366

The power specific speed of a 4MW Francis turbine is 0.8, and the hydraulic efficiency can be assumed to be 90%. The head of water supplied to the turbine is 100 m. The runner vanes are radial at inlet and their internal diameter is three quarters of the external diameter. The 322 Fluid Mechanics, Thermodynamics of Turbomachinery meridional velocities at runner inlet and outlet are equal to 25 and 30%, respectively, of the spouting velocity.

Determine

(i) the rotational speed and diameter of the runner;

(ii) the flow angles at outlet from the guide vanes and at runner exit;

(iii) the widths of the runner at inlet and at exit.

Blade thickness effects can be neglected

Reference no: EM13929366

Questions Cloud

Experiment to reduce the probability of a type ii error : Having just made what you believe to be a Type II error, using an independent groups design and a t test analysis, name all the things you might do in the next experiment to reduce the probability of a Type II error.

Overseeing a production process involving use of toluene : Air Sampling Problem: You are an industrial hygienist that is conducting personal sampling on a worker who is overseeing a production process involving use of toluene (Note: The Occupational Safety and Health Administration has established a Permissi..

During the accounting period cuevas recorded : Determine the amount of uncollectible accounts expense recognized during the period.

What are the observable artifacts, espoused values : Use the competing values framework to diagnose Chrysler's culture. To what extent does it possess characteristics associated with clan, adhocracy, market, and hierarchy cultures?

Determine the rotational speed and diameter of the runner : Determine the rotational speed and diameter of the runner - the flow angles at outlet from the guide vanes and at runner exit;

Adjusted the accounting records to reflect the estimate : Adjusted the accounting records to reflect the estimate that uncollectible accounts expense would be 1 percent of the cleaning revenue on account.

Recognized uncollectible accounts expense : Recognized uncollectible accounts expense. Eccles estimated that uncollectible accounts expense will be 1 percent of sales on account.

Which policy wins a simple majority in a vs b : Let us imagine that we have three types of individuals in the electorate (each with same population), with the following preferences. Simple majority: Which policy wins a simple majority in a vs b? Which policy wins a simple majority in a vs c

What amount of uncollectible accounts expense : Explain how the $600 recovery of receivables affects the income statement.

User Account

All Pages