5. Sketch a Rankine cycle on T-s diagram and derive the thermal efficiency for a Rankine cycle from its 4 steps. Show on T-S plot and discuss what is the effect of a. Increasing superheat b. decreasing condenser pressure c. Adding friction at pump and turbine
Added by Steven G.
Close
Step 1
Increasing superheat b. Decreasing condenser pressure c. Adding friction at pump and turbine \textbf{Step 1:} To sketch the Rankine cycle on a T-s diagram, we need to plot the following points: Show more…
Show all steps
Your feedback will help us improve your experience
Adi S and 87 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
A heat engine cycle often used in refrigeration, is the Brayton cycle, which involves an adiabatic compression, followed by an isobaric expansion, an adiabatic expansion, and finally an isobaric compression. The system begins at temperature $T_{1}$ and transitions to temperatures $T_{2}, T_{3},$ and $T_{4}$ after respective parts of the cycle. a) Sketch this cycle on a $p V$ -diagram. b) Show that the efficiency of the overall cycle is given by $\epsilon=1-\left(T_{4}-T_{1}\right) /\left(T_{3}-T_{2}\right)$.
Sri K.
Consider a simple ideal Rankine cycle with fixed boiler and condenser pressures. If the cycle is modified with reheating, $(a)$ the turbine work output will decrease. $(b)$ the amount of heat rejected will decrease. $(c)$ the pump work input will decrease. $(d)$ the moisture content at turbine exit will decrease. $(e)$ the amount of heat input will decrease.
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD