{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

ps4_soln - Massachusetts Institute of Technology DEPARTMENT...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Massachusetts Institute of Technology DEPARTMENT OF MECHANICAL ENGINEERING Center for Ocean Engineering 2.611 SHIP POWER and PROPULSION Problem Set #4 Basic Thermodynamic Cycles, Due: October 31, 2006 1. First Law refresher- a) Write the generic first law thermodynamic equation for a single inlet and single exit flow. t U d d Q dot _W dot m in_dot h in g z in + V 2 ( ) in 2 + + m out_dot h out g z out + V 2 ( ) out 2 + b) What does this equation not take into account? The influence of chemical reactions is not included in this calculation. c) Discuss the adiabatic process, the polytropic process and what it means for a process to be reversible. AP - A process in which no heat is transferred across the assigned boundary PP – A process in which during which expansion and compression can be related to ideal gas properties. More specifically, pressure and volume can be related by PV n =C RP – A reversible process is one that can be reversed without leaving any trace on its surroundings. This is possible only if the net heat and net work exchange between the system and he surroundings is zero for the combined process 2. Air at 10º C and 80kPa enters the diffuser of a jet engine steadily with a velocity of 200 m/s. The inlet area of the diffuser is 0.5 m 2 . The air leaves the diffuser with a velocity that is very small compared with the inlet velocity.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern