Recent content by yaro99
-
Y
Engineering Find out the percent exergy loss
Thank you for your response. Sorry for not using LATEX, it's been years since I've used it. I will start using it now. Thanks for applying it to my Relevant Equations. I actually didn't realize it was worked out in the book, it was a few pages before my particular problem. After looking...- yaro99
- Post #3
- Forum: Engineering and Comp Sci Homework Help
-
Y
Engineering Find out the percent exergy loss
Problem, with state values, and pie chart (Fig 4.20) showing answers: ^ This shows the system in question (Kapitza Liquefaction System). Methane gas enters into the compressor (c), then goes through the first heat exchanger (HX1). Some of it (z) gets routed to the expander (exp). Afterwards...- yaro99
- Thread
- Fluids Loss Methane Percent Thermodynamics
- Replies: 17
- Forum: Engineering and Comp Sci Homework Help
-
Y
Reaction forces in a two segment beam
So my fbd is just missing an internal moment at B, and the resulting equation would be: +cw ∑M_B=0: -136 + 3*Cy + M_B = 0 I can't solve directly for Cy since I don't have M_B. Is this correct? Would I not still have to include an internal moment? Wouldn't a complete diagram look something like...- yaro99
- Post #3
- Forum: Engineering and Comp Sci Homework Help
-
Y
Reaction forces in a two segment beam
Homework Statement Homework Equations ∑Fx=0 ∑Fy=0 ∑M=0 The Attempt at a Solution [/B] I am just concerned with part a. I got the correct answers doing this: First, FBD of segment AB: +cw ∑M_A=0: -136 - 6*By = 0 By = -22.7N two ways to get Ay: one: +cw ∑M_B=0: -136 + 6*Ay = 0 Ay =...- yaro99
- Thread
- Beam Forces Reaction Reaction forces
- Replies: 3
- Forum: Engineering and Comp Sci Homework Help
-
Y
State-space modeling of a control system
Homework Statement [/B] Here is the problem: And this is the system in question: Homework Equations G(s) = θ_0(s)/θ_i(s) = output/input (open-loop transfer function) The Attempt at a Solution I've been staring at this problem and looking through my textbook for over an hour but...- yaro99
- Thread
- Control Control system Modeling State-space System
- Replies: 1
- Forum: Engineering and Comp Sci Homework Help
-
Y
Modeling a Control System using Transfer Functions
Not much. My professor gave us one (bad) lecture on them and then gave us this HW. We are supposed to look up transfer functions on our own but my book was unhelpful. That's what confused me. If that's true then I'm wondering why the table asks for both.- yaro99
- Post #8
- Forum: Engineering and Comp Sci Homework Help
-
Y
Modeling a Control System using Transfer Functions
How would I do this for each particular block? I am supposed to fill out the table for each one. Also, in the table, what would be the difference between the Block and the Transfer Function?- yaro99
- Post #6
- Forum: Engineering and Comp Sci Homework Help
-
Y
Modeling a Control System using Transfer Functions
I don't understand this part, forgive my ignorance. Why am I multiplying, and what is the forward chain? We are talking about just the preamp here right?- yaro99
- Post #3
- Forum: Engineering and Comp Sci Homework Help
-
Y
Modeling a Control System using Transfer Functions
Homework Statement [/B] Homework Equations Listed under 2.1 in the image above. This is the only relevant equation that I'm aware of, but I'm almost sure that there is something else I need to know before I can solve the problem. The Attempt at a Solution I tried solving for the...- yaro99
- Thread
- Control Control system Functions Modeling System
- Replies: 8
- Forum: Engineering and Comp Sci Homework Help
-
Y
Impedance as a function of angular frequency
Okay I just realized I did my limit calculations wrong. Setting Z to 0 for a short circuit, and taking the limit of ω as Z approaches ∞ for an open circuit, I got these values: Series Circuit: ω = 1000 rad/s for a short circuit ω = 0 for an open circuit Parallel Circuit: ω = 0 for...- yaro99
- Post #8
- Forum: Introductory Physics Homework Help
-
Y
Impedance as a function of angular frequency
The limit as ω approaches infinity is infinity. So does that mean that for an open circuit (infinite impedance), ω=∞? That doesn't seem right, I may be misunderstanding.- yaro99
- Post #7
- Forum: Introductory Physics Homework Help
-
Y
Impedance as a function of angular frequency
I am not sure how I would solve for that. Z = j0.02(0) - j20000/0 I have a zero in the denominator. I know from calculus that the limit of 1/∞ = 0, so would that then mean that 1/0 = ∞? This wouldn't apply to real numbers, but maybe it works here because it is imaginary? If that is...- yaro99
- Post #4
- Forum: Introductory Physics Homework Help
-
Y
Impedance as a function of angular frequency
Homework Statement Homework Equations Z_L = jωL Z_C = 1/(jωC) = -j/(ωC)The Attempt at a Solution This is my attempt for the series combination: Z = jωL + 1/(jωC) Z = j0.02ω - j20000/ω = j(0.02ω - 20000/ω) Is there a way to simplify this further? What would a graph look like, if the...- yaro99
- Post #3
- Forum: Introductory Physics Homework Help
-
Y
Impedance as a function of angular frequency
Homework Statement Homework Equations Z_L = jωL Z_C = 1/(jωC) = -j/(ωC) The Attempt at a Solution This is my attempt for the series combination: Z = jωL + 1/(jωC) Z = j0.02ω - j20000/ω Is there a way to simplify this further? What would a graph look like, if the function...- yaro99
- Thread
- Angular Angular frequency Frequency Function Impedance
- Replies: 8
- Forum: Introductory Physics Homework Help
-
Y
Equivalent resistance, using node voltage analysis
Great, much appreciated!- yaro99
- Post #12
- Forum: Introductory Physics Homework Help