Other
Thermodynamics Cycle
- Institution
- Mangosuthu University Of Technology (MUT)
Tutorial questions based on the application of thermodynamics cycles
[Show more]
Seller
Follow
Content preview
Page 1 of 4UMLAZI KWAZULU-NATAL
P.O. Box 1263 Jacobs 4026 Durban Tell: 031 907 7111 Fax: 031 907 2892
THERMODYNAMICS APPLIED III: TUTORIAL #2
THERMODYNAMICS PROCESSES (APPLICATIONS)
1. Determine work done by fluid in the thermodynamic cycle comprising of following processes:
a) Unit mass of fluid at 20 atm and 0.04 m3 is expanded by the law PV1.5 = constant, till volume
gets doubled.
b) Fluid is cooled isobarically to its original volume.
c) Heat is added to fluid till its pressure reaches to its original pressure, isochorically.
2. Determine the heat transfer in emptying of a rigid tank of 1 m3 volume containing air at 3 bar and
27°C initially. Air is allowed to escape slowly by opening a valve until the pressure in tank drops
to 1 bar pressure. Consider escape of air in tank to follow polytropic process with index n = 1.2
3. A fluid at a pressure of 3 bar, and with specific volume of 0.18 m3/kg, contained in a cylinder behind
a piston expands reversibly to a pressure of 0.6 bar according to a law, p = C/v2 where C is a
constant. Calculate the work done by the fluid on the piston.
4. A cylinder contains 1 kg of a certain fluid at an initial pressure of 20 bar. The fluid is allowed to
expand reversibly behind a piston according to a law pV2 = constant until the volume is doubled.
The fluid is then cooled reversibly at constant pressure until the piston regains its original position;
heat is then supplied reversibly with the piston firmly locked in position until the pressure rises to
the original value of 20 bar. Calculate the net work done by the fluid, for an initial volume of 0.05
m3.
5. To a closed system 150 kJ of work is supplied. If the initial volume is 0.6 m3 and pressure of the
system changes as p = 8 – 4V, where p is in bar and V is in m3, determine the final volume and
pressure of the system.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller cebohmungwe. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R163,00. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
51036 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy summaries for 15 years now