Subjects
Biology
Chemistry
AP Chemistry
English
AP English Literature
Chemistry
Nov 26, 2025
6
4 pages
The Brayton cycle, also known as the gas turbine cycle, is a thermodynamic cycle used in gas turbines... Show more
This page delves into the concept of adiabatic efficiency for turbines, also known as expanders. It presents the adiabatic efficiency of turbines in power cycles formula and explains its significance in evaluating turbine performance.
Definition Adiabatic efficiency of a turbine is the ratio of actual shaft work to the ideal isentropic turbine work.
The formula for adiabatic turbine efficiency is given as
η = W_act / W_isen = /
Where
Example In an ideal isentropic process, the entropy remains constant . However, in real turbines, the actual process deviates from this ideal.
The page includes a pressure-enthalpy diagram illustrating the difference between the actual and isentropic processes in a turbine. This visual aid helps in understanding the concept of adiabatic efficiency and its relation to enthalpy changes.
Highlight The adiabatic efficiency formula provides a way to quantify how closely a real turbine approaches ideal performance, which is crucial for optimizing power cycle designs.
This page presents a detailed problem and solution for calculating the adiabatic efficiency of a steam turbine. The problem involves steam entering an adiabatic turbine at specific inlet conditions and exiting at given outlet conditions.
Example Steam enters an adiabatic turbine at 3 MPa and 400°C, leaving at 50 kPa and 100°C. The turbine produces 2 MW of power output.
The solution process demonstrates how to use steam tables and the isentropic efficiency of turbine formula to determine the turbine's performance. Key steps include
Highlight This problem illustrates the practical application of thermodynamic principles in evaluating real-world turbine performance.
The page also touches on the concept of superheated steam and how to handle situations where the final state is a saturated mixture. This knowledge is crucial for accurate steam turbine efficiency calculation.
This page continues the steam turbine problem, focusing on calculating the isentropic efficiency and mass flow rate. It demonstrates the application of the isentropic efficiency formula and mass balance principles in turbine analysis.
The solution process involves
Vocabulary Quality in steam calculations refers to the mass fraction of vapor in a saturated liquid-vapor mixture.
Highlight The calculated adiabatic efficiency of 66.74% provides insight into the turbine's real-world performance compared to an ideal isentropic process.
The page concludes with the determination of the steam mass flow rate, which is crucial for sizing and designing turbine systems. This problem serves as a comprehensive example of applying thermodynamic principles to analyze and evaluate turbine performance in power cycles.
This page introduces fundamental concepts for analyzing power cycles, including key idealizations and simplifications. The Carnot cycle is discussed as an ideal but impractical model. Steady-state flow processes are explained as important for real-world power systems.
Definition A steady-state flow process has zero accumulation, with mass flow rates in and out being equal.
Highlight Ideal processes serve as useful models, even though some irreversibilities are unavoidable in real systems.
Key idealizations for power cycle analysis include
Vocabulary Quasi-equilibrium refers to a process occurring slowly enough that the system remains very close to equilibrium states throughout.
The page also touches on why the Carnot cycle, while theoretically ideal, is not practical for real power systems. This sets the stage for discussing more realistic cycle models like the Brayton cycle.
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
You can download the app in the Google Play Store and in the Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
0
Smart Tools NEW
Transform this note into: ✓ 50+ Practice Questions ✓ Interactive Flashcards ✓ Full Mock Exam ✓ Essay Outlines
Notes relating to phase change: triple point, critical points, and heating curves.
AP ChemistryNotes on the topic
ChemistryCalculating Energy Notes
ChemistryExplore the Haber Process for ammonia synthesis, including reaction conditions, catalyst use, and the production of NPK fertilisers. Understand the impact of temperature and pressure on yield, and the environmental implications of fertiliser use. This summary provides essential insights for chemistry students.
ChemistryHess's Law
ChemistryExplore the principles of measuring enthalpy changes through calorimetry. This summary covers key concepts such as specific heat capacity, energy transfer calculations, and the distinction between exothermic and endothermic reactions. Ideal for students preparing for exams or needing a quick reference on enthalpy changes in chemical reactions.
ChemistryApp Store
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The Brayton cycle, also known as the gas turbine cycle, is a thermodynamic cycle used in gas turbines to convert thermal energy into mechanical work. This cycle consists of four main processes: compression, combustion, expansion, and heat rejection. Brayton cycle... Show more
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
This page delves into the concept of adiabatic efficiency for turbines, also known as expanders. It presents the adiabatic efficiency of turbines in power cycles formula and explains its significance in evaluating turbine performance.
Definition: Adiabatic efficiency of a turbine is the ratio of actual shaft work to the ideal isentropic turbine work.
The formula for adiabatic turbine efficiency is given as:
η = W_act / W_isen = /
Where:
Example: In an ideal isentropic process, the entropy remains constant . However, in real turbines, the actual process deviates from this ideal.
The page includes a pressure-enthalpy diagram illustrating the difference between the actual and isentropic processes in a turbine. This visual aid helps in understanding the concept of adiabatic efficiency and its relation to enthalpy changes.
Highlight: The adiabatic efficiency formula provides a way to quantify how closely a real turbine approaches ideal performance, which is crucial for optimizing power cycle designs.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
This page presents a detailed problem and solution for calculating the adiabatic efficiency of a steam turbine. The problem involves steam entering an adiabatic turbine at specific inlet conditions and exiting at given outlet conditions.
Example: Steam enters an adiabatic turbine at 3 MPa and 400°C, leaving at 50 kPa and 100°C. The turbine produces 2 MW of power output.
The solution process demonstrates how to use steam tables and the isentropic efficiency of turbine formula to determine the turbine's performance. Key steps include:
Highlight: This problem illustrates the practical application of thermodynamic principles in evaluating real-world turbine performance.
The page also touches on the concept of superheated steam and how to handle situations where the final state is a saturated mixture. This knowledge is crucial for accurate steam turbine efficiency calculation.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
This page continues the steam turbine problem, focusing on calculating the isentropic efficiency and mass flow rate. It demonstrates the application of the isentropic efficiency formula and mass balance principles in turbine analysis.
The solution process involves:
Vocabulary: Quality in steam calculations refers to the mass fraction of vapor in a saturated liquid-vapor mixture.
Highlight: The calculated adiabatic efficiency of 66.74% provides insight into the turbine's real-world performance compared to an ideal isentropic process.
The page concludes with the determination of the steam mass flow rate, which is crucial for sizing and designing turbine systems. This problem serves as a comprehensive example of applying thermodynamic principles to analyze and evaluate turbine performance in power cycles.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
This page introduces fundamental concepts for analyzing power cycles, including key idealizations and simplifications. The Carnot cycle is discussed as an ideal but impractical model. Steady-state flow processes are explained as important for real-world power systems.
Definition: A steady-state flow process has zero accumulation, with mass flow rates in and out being equal.
Highlight: Ideal processes serve as useful models, even though some irreversibilities are unavoidable in real systems.
Key idealizations for power cycle analysis include:
Vocabulary: Quasi-equilibrium refers to a process occurring slowly enough that the system remains very close to equilibrium states throughout.
The page also touches on why the Carnot cycle, while theoretically ideal, is not practical for real power systems. This sets the stage for discussing more realistic cycle models like the Brayton cycle.
Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.
You can download the app in the Google Play Store and in the Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
0
Smart Tools NEW
Transform this note into: ✓ 50+ Practice Questions ✓ Interactive Flashcards ✓ Full Mock Exam ✓ Essay Outlines
Notes relating to phase change: triple point, critical points, and heating curves.
AP ChemistryNotes on the topic
ChemistryCalculating Energy Notes
ChemistryExplore the Haber Process for ammonia synthesis, including reaction conditions, catalyst use, and the production of NPK fertilisers. Understand the impact of temperature and pressure on yield, and the environmental implications of fertiliser use. This summary provides essential insights for chemistry students.
ChemistryHess's Law
ChemistryExplore the principles of measuring enthalpy changes through calorimetry. This summary covers key concepts such as specific heat capacity, energy transfer calculations, and the distinction between exothermic and endothermic reactions. Ideal for students preparing for exams or needing a quick reference on enthalpy changes in chemical reactions.
ChemistryApp Store
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️
Thomas R
iOS user
Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades
Brad T
Android user
Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend
Aubrey
iOS user
Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀
Marco B
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!
Paul T
iOS user
