Describe is installation of the pump justified

Assignment Help Electrical Engineering
Reference no: EM13275152

Consider a l0-plate fuel cell stack at an anode stoichiometry of 1.2 with 20 A current generated in the stack and a stack voltage of 6.0 V. As an engineer, you have a choice to install a recirculation pump to recycle the unused hydrogen from the anode exhaust back into the anode to increase the effective fuel utilization to 100%. However, the pump requires 60 W of parasitic power to operate continuously. Is installation of the pump justified? Explain. At what value of parasitic power does the addition of the pump become unjustified?

Reference no: EM13275152

Questions Cloud

Find the commutators frequencies in rotations per second : The data rate of m4(t) is 16 kbps and m5(t) is 16 kbps too. The analog signals are to be sampled at rates no less than their respective Nyquist rates, then converted to the PCM format with 4 bits for each sample. 1.Suggest a suitable multiplexing s..
What is the amount a person would have to deposit today : What is the amount a person would have to deposit today to be able to take out $5000 a year for 10 years from an account earning 8 percent annually?
Find the period of its uniform circular motion : A child ties a rock to a string and whirls it around in a horizontal circle. Find the period of its uniform circular motion
For what range of probability of the state of nature : For what range of probability of the state of nature that favors alternative A occurring is selecting both alternatives A and B the optimal decision?
Describe is installation of the pump justified : However, the pump requires 60 W of parasitic power to operate continuously. Is installation of the pump justified. Explain. At what value of parasitic power does the addition of the pump become unjustified.
Define molar extinction coefficient : If you measured absorbances of a product in different solutions at 470 nm and used a molar extinction coefficient of 4234 M^-1 cm^-1 in your calculations.
Describe an unweighted price index : Describe an unweighted price index and describe how you would construct such an index.
Iron chloride is dissolved in water solution becomes acidic : When iron chloride FeCl3 is dissolved in water the solution becomes acidic. The preparation of the Fe(NO3)3 solution and the KSCN solution used 0.5 M HNO3 as the solvent instead of water. Explain why this was done.
What cash flow must the investment provide at the end : What cash flow must the investment provide at the end of each of the final 4 years, that is, what is X? (can you show me the math of how to get the right answer) Can you put the above scenario in the context of a real world example?

Reviews

Write a Review

Electrical Engineering Questions & Answers

  Determine the power factor-complex power and real power

The voltage across a certain load is V = 1200√2

  How tall must the antennas be if the link operates

How tall must the antennas be if the link operates on a frequency of 2.450Ghz, D1=5miles, D2=11miles, and the obstruction is 60 feet high?

  Determine whether the statements are valid or invalid

determine whether the statements are valid or invalid. If a statement is valid, please give a proof as in problem 1. If a statement is invalid, you need only provide a counterexample. If x + y = x + z, then y = z

  Calculate the powers p1 and p2 dissipated across r1 and r2

A battery E (e.m.f 12v and internal resistance 0.8 ohms) and a resistor R1 (10 ohms) are connected in series across two parallel resistors (R2 = 12 ohms, R3 = 18 ohms). i) Draw the circuit diagram, determine the battery terminal voltage.

  Design a circuit to produce vout as the most negative

Six input voltage sources (V1, V2, V3, V4, V5, V6) have a +/- 1 V range. Design a circuit to produce Vout as the most negative (smallest) of (V1 + 2V2), (V3 - 2V4), (-V5 - 2V6). Your design should specify exact components. Note that diode drop can..

  What is the effective data rate

What is the effective data rate of this transfer (not counting the time for reading or writing the DVDs)?

  Explain what is the resolution of each quantizer

Supply the quantisation levels (including zero) that are available. Do this for both the three and 4-bit ADC in table form. What is the resolution of each quantizer?

  Find the value of fs so that the reconstructed signal

consider the back to back cascade of an ideal C to D and D to C converter. Both have the same sampling rate fs. Suppose that the signal being sampled is: x(t) = cos(324*pi*t - pi/4) + cos(80*pi*t - pi/4)

  Determine the minimum double-sided nyquist bandwidth

For a 64-PSK modulator with an input data rate(fb) equal to 36 Mbps and a carrier frequency of 100 MHz. A. Determine the minimum double-sided Nyquist bandwidth(fN) and the baud. B. Sketch the output spectrum.

  Determine speed of the motor and motor torque

The speed of a 10HP, 230V, 1200 rpm separately excited DC motor is controlled by a 1-phase full-wave bridge converter. The rated armature current of the motor is 10 A. The armature resistance is 0.25 Ohm and the armature inductance is 10 mH.

  Find the total power dissipated in the resistors

Calculate the following for this circuit: PR1 W PR2 W PR3 W PR4 W PD = PR1 + PR2 + PR3 + PR4 W 6. Verify that the total power dissipated in the resistors, PD is equal to the power supplied by the DC source, PS.

  Derive minimal boolean expressions for circuit outputs

Design a 2-bit counter that, when f = 1, counts in the repeating sequence: 0, 2, 3, and when f = 0, counts in the reverse direction. Use T flip-flops. (a) Construct a state diagram or state table.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd