This topic contains a solution. Click here to go to the answer

Author Question: A company that produces pulsed gas heaters claims their efficiency is approximately 90. If an engine ... (Read 49 times)

Charlie

  • Hero Member
  • *****
  • Posts: 640
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
Answer to Question 1

C

Answer to Question 2

D




Charlie

  • Member
  • Posts: 640
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it


dawsa925

  • Member
  • Posts: 326
Reply 3 on: Yesterday
Gracias!

 

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

For a complete list of videos, visit our video library