« previous next »

Author Question: When would a steam boiler be preferable over a hot-water-type boiler? What will be an ideal ... (Read 82 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?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

(A) Dornier Compact Delta® lithotripsy system. Acoustic shock waves generated by the shock-wave-gene (A) Dornier Compact Delta® lithotripsy system. Acoustic shock waves generated by the shock-wave-gene
This lithograph by Currier and Ives gives an erroneous impression of the “battle.” Major Robert Ande This lithograph by Currier and Ives gives an erroneous impression of the “battle.” Major Robert Ande
Water-Reactive Salts Water-Reactive Salts
The types of topological interconversions catalyzed by type II topoisomerases The types of topological interconversions catalyzed by type II topoisomerases
For each substrate below, choose which reaction type is favored. Place the letter of the ... For each substrate below, choose which reaction type is favored. Place the letter of the ...
When lithium chloride, LiCl, dissolves in water, which of the following is forme When lithium chloride, LiCl, dissolves in water, which of the following is forme
Video: Parkinson's Disease

For a complete list of videos, visit our video library