« previous next »

Author Question: When would a steam boiler be preferable over a hot-water-type boiler? What will be an ideal ... (Read 81 times)

sabina

  • Hero Member
  • *****
  • Posts: 563
on: Jul 26, 2018
When would a steam boiler be preferable over a hot-water-type boiler?
 
  What will be an ideal response?

Question 2

What is meant by a closed breaker as compared to an open breaker?
 
  What will be an ideal response?


anyusername12131

  • Sr. Member
  • ****
  • Posts: 327
Reply #1 on: Jul 26, 2018
Answer to Question 1

When large amounts of heat need to be transferred, the boiler is used to produce steam. This is due to the fact that about 970 Btu/lb of heat can be added to water at 212F and atmospheric pressure to change it into steam at the same temperature. This same amount of heat will be transferred to the air passing across a heating coil as the steam turns back into condensate.

Answer to Question 2

A closed breaker is on energized an open breaker is off de-energized..


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

The Taung Child, the first of the australopithecines to be discovered, is the type specimen for Aust The Taung Child, the first of the australopithecines to be discovered, is the type specimen for Aust
One type of safety needle withdraws into a protective sheath when the injection is complete. One type of safety needle withdraws into a protective sheath when the injection is complete.
The Functions of Water in the Body The Functions of Water in the Body
Water breaks (Or Water rupture) "نزول ماء الجنين او ميه الراس" Water breaks (Or Water rupture) "نزول ماء الجنين او ميه الراس"
How humans maintain homeostasis with respect to water and ions How humans maintain homeostasis with respect to water and ions
The water molecule The water molecule
Video: Griffith's experiments

For a complete list of videos, visit our video library