Q3 W_{cv} = 11,400 kW P_1 = 3 MPa T_1 = 400^\circ C (AV)_1 = 85 \text{ m}^3/\text{min} P_2 = 0.5 \text{ MPa} T_2 = 180^\circ C V_2 = 20 \text{ m/s} P_3 = 6 \text{ kPa} x_3 = 90\% A well insulated steam turbine is shown in the figure above. What is the mass flow rate at inlet?
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Steam enters a turbine at $3 \mathrm{MPa}, 450^{\circ} \mathrm{C},$ expands in a reversible adiabatic process, and exhausts at $50 \mathrm{kPa}$. Changes in kinetic and potential energies between the inlet and the exit of the turbine are small. The power output of the turbine is $800 \mathrm{~kW}$. What is the mass flow rate of steam through the turbine?
Steam at $3 \mathrm{MPa}$ and $400^{\circ} \mathrm{C}$ enters a turbine with a volume flow rate of $5 \mathrm{m}^{3} / \mathrm{s}$. An extraction of $15 \%$ of the inlet mass flow rate exits at $600 \mathrm{kPa}$ and $200^{\circ} \mathrm{C} .$ The rest exits the turbine at $20 \mathrm{kPa}$ with a quality of $90 \%$ and a velocity of $20 \mathrm{m} / \mathrm{s}$. Determine the volume flow rate of the extraction flow and the diameter of the final exit pipe.
Steam at $3 \mathrm{MPa}, 400^{\circ} \mathrm{C}$ enters a turbine with a volume flow rate of $5 \mathrm{~m}^{3} / \mathrm{s}$. An extraction of $15 \%$ of the inlet mass flow rate exits at $600 \mathrm{kPa}$ and $200^{\circ} \mathrm{C}$. The rest exits the turbine at $20 \mathrm{kPa}$ with a quality of $90 \%$ and a velocity of $20 \mathrm{~m} / \mathrm{s}$. Determine the volume flow rate of the extraction flow and the total turbine work.
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