This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A company that produces pulsed gas heaters claims their efficiency is approximately 90. If an engine ... (Read 40 times)

Charlie

  • Hero Member
  • *****
  • Posts: 640
on: Jul 28, 2018
A company that produces pulsed gas heaters claims their efficiency is approximately 90. If an engine operates between 250C and 25C, what is its maximum thermodynamic efficiency?
 a. 83
  b. 65
  c. 43
  d. 90
  e. 56

Question 2

A steam engine is operating at its theoretical maximum efficiency of 60. If the waste heat has a temperature of 100F (38C), what is the temperature of the boiler?
 a. 350C
  b. 94C
  c. 225C
  d. 504C
  e. 775C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

skipfourms123

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

D


Charlie

  • Member
  • Posts: 640
Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review

essyface1

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Hypothyroidism. Hyposecretion of the thyroid gland produces the symptoms that are illustrated. Hypothyroidism. Hyposecretion of the thyroid gland produces the symptoms that are illustrated.
Rotary engine operates on the four-stroke cycle but uses a rotor instead of a piston and crankshaft ... Rotary engine operates on the four-stroke cycle but uses a rotor instead of a piston and crankshaft ...
Many exhaust manifolds are constructed of pressed steel and are free flowing to improve engine ... Many exhaust manifolds are constructed of pressed steel and are free flowing to improve engine ...
If a cylinder(s) is lower than most of the others, use an oil can and use two squirts of engine oil ... If a cylinder(s) is lower than most of the others, use an oil can and use two squirts of engine oil ...
When the engine achieves closed-loop, the air is directed to the catalytic converter. When the engine achieves closed-loop, the air is directed to the catalytic converter.
A company purchased 26 desks for $240 each and 18 chairs for $59 each. Compute the total ... A company purchased 26 desks for $240 each and 18 chairs for $59 each. Compute the total ...
Video: Ear Animation

For a complete list of videos, visit our video library