A mixture of oxygen (mf=0.0625), carbon dioxide (mf=0.625) and helium (mf=0.3125) enter an adiabatic turbine at 1000 kPa and 600 K and expand to 100 kPa. Assuming constant specific heats, determine the work output of the turbine. (10 points)
Added by Christina H.
Close
Step 1
First, we need to determine the initial and final states of the mixture. The initial state is given as 1000 kPa and 600 K, and the final state is given as 100 kPa. Show more…
Show all steps
Your feedback will help us improve your experience
Cyra Jelle Calleja and 95 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Adi S.
A mixture of oxygen (O2), carbon dioxide (CO2) and helium (He) gases with a mass fraction of 0.0625, 0.625, and 0.3125, respectively, enter an adiabatic turbine at 1000 kPa and 600 K steadily and expand to 100 kPa pressure. The isentropic efficiency of the turbine is 90%. For gas components assuming constant specific heats, determine the work output of the turbine. You can assume an ideal gas mixture and an average value of Cv and Cp at 400K will hold.
Combustion gases enter a gas turbine at $900^{\circ} \mathrm{C}, 800 \mathrm{kPa}$ and $100 \mathrm{~m} / \mathrm{s}$ and leave at $650^{\circ} \mathrm{C}, 400 \mathrm{kPa}$, and $220 \mathrm{~m} / \mathrm{s}$. Taking $c_{p}=1.15 \mathrm{~kJ} / \mathrm{kg} \cdot{ }^{\circ} \mathrm{C}$ and $k=1.3$ for the combustion gases, determine $(a)$ the exergy of the combustion gases at the turbine inlet and $(b)$ the work output of the turbine under reversible conditions. Assume the surroundings to be at $25^{\circ} \mathrm{C}$ and 100 kPa. Can this turbine be adiabatic?
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Watch the video solution with this free unlock.
EMAIL
PASSWORD