{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

AME101-F07-PS6

AME101-F07-PS6 - AME 101 Fall 2007 Problem Set#6 Assigned...

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

AME 101 Fall 2007 Problem Set #6 Assigned: Friday, 11/30/2007 Due: Friday, 12/7/2007, 2:00 pm, in my mailbox (OHE 430J). Note earlier due time – 2:00 PM not 4:30 PM. As always, no late homework is accepted for credit (you may turn in late homework, however, if you just want it graded.) Note: Since your lowest homework grade will be dropped anyway, if you’re satisfied with your other 5 scores, you can skip this assignment. (Though I recommend doing these problems anyway, you’ll need to know the material for the final exam!) Problem #1 (scrutiny) (15 points) Using the First Law of Thermodynamics I derived the following formula for the exhaust velocity ( v out ) of a new type of rocket engine in terms of the exhaust temperature ( T out ), inlet temperature ( T in ) and specific heat ( C P ): v out = 2 C P ( T in " T out ) The formula has already passed the usual smoke, function and performance tests. (a) For each of the following 4 assumptions, state whether or not this assumption was required to derive the above result, and explain why in 1 or 2 sentences. NO CREDIT WITHOUT EXPLANATION !!!! (i) Steady flow (ii) Ideal gas (iii) Constant specific heat (C P ) (iv) Incompressible fluid (b) List TWO AND ONLY TWO other assumptions, not listed in part (a), that were required to obtain this result. (There are at least 4 other assumptions, but just pick the two that you are most sure of.) Problem #2 (thermodynamics) (15 points) a) How much energy (in Joules) is required to heat 1 gallon of liquid water from 0˚C to 100˚C?

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

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 4

AME101-F07-PS6 - AME 101 Fall 2007 Problem Set#6 Assigned...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online