HW6point5_FINAL - ENU 4134 Homework Assignment #6.5 Fall...

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ENU 4134 – Homework Assignment #6.5 – Fall 2011 – D. Schubring 1 ENU 4134 – Homework Assignment #6.5 – Fall 2011 Not to be turned in. Task 1. Non-equilibrium Models. Find the critical mass flux, G cr , and mass flow rate, ˙ m crit of saturated water discharging from a 0.01 m diameter pipe at 7 MPa into a large volume room at 0.1 MPa (roughly atmospheric pressure). Assume a sharp edged discharge coefficient of 0.61 where required. Repeat for the following lengths of pipe; use non-equilibrium models throughout (although the last is probably at or near thermal equilibrium). a. 0 m (an orifice) b. 0.025 m (use Equation 11-139 and Figure 11-25) c. 0.07 m (use Equation 11-139 and Figure 11-25) d. 0.07 m (use Equation 11-140) e. 0.3 m (use Equation 11-142) Compare these mass flow rates to the total mass in a BWR. (You need not do a detailed computation of a BWR volume. Back-of-the-envelope calculation will suffice.) If these were an accident scenario, would it require a rapid response? (2 points)
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This note was uploaded on 10/22/2011 for the course ENU 4134 taught by Professor Schubring during the Fall '11 term at University of Florida.

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HW6point5_FINAL - ENU 4134 Homework Assignment #6.5 Fall...

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