Lesson 6

.pdf

School

Pennsylvania State University *

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Course

101

Subject

Aerospace Engineering

Date

Apr 3, 2024

Type

pdf

Pages

3

Uploaded by DoctorTeam18550 on coursehero.com

Lesson 6.3 Participation: Calculate Power Due Apr 3 at 11:59pm Points 8 Questions 8 Time Limit None Allowed Attempts Unlimited Attempt History Attempt Time Score KEPT Attempt 3 less than 1 minute 8 out of 8 LATEST Attempt 3 less than 1 minute 8 out of 8 Attempt 2 less than 1 minute 5 out of 8 Attempt 1 6 minutes 7 out of 8 Score for this attempt: 8 out of 8 Submitted Jan 22 at 11:52am This attempt took less than 1 minute. Question 1 1 / 1 pts Correct! 10 MW 70 MW 7 MW 3 MW Question 2 1 / 1 pts Correct! 80% Take the Quiz Again The Penn State natural gas plant produces 7 MW of power. If it runs at 70% efficiency and has 7MW Power output, what is the rate of energy input ? The Penn State natural gas plant produces 7 MW of power. Part 2: What if Penn State could successfully reuse 1/3rd of the remaining rejected heat…what is the new process efficiency?
70% 33% 67% Question 3 1 / 1 pts Correct! 63% 70% 90% 35% Question 4 1 / 1 pts Correct! Coal Elon Musk Batteries Petroleum Question 5 1 / 1 pts Correct! 10% 50% 20% Elon Musk If Penn State’s power generation is 70% efficient and campus efficiency (dorms, labs, lecture halls) is raised from 50% to 90%, what is the new process efficiency? Kevin wants to use less fossil fuel by purchasing an electric vehicle. EV’s are currently about 50% efficient. The power in Kevin’s neighborhood comes from a coal-fired power plant. When Kevin plugs his EV in at night, what is powering his car? Kevin wants to use less fossil fuel by purchasing an electric vehicle. EV’s are currently about 50% efficient. The grid is about 20% efficient and Kevin’s EV is about 50% efficient. What is the total efficiency of this process?
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