« previous next »

Author Question: When would a steam boiler be preferable over a hot-water-type boiler? What will be an ideal ... (Read 70 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?

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.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Upward transport of water in xylem. Upward transport of water in xylem.
The relationship between air temperature and two measures of water vapour saturation of air. The relationship between air temperature and two measures of water vapour saturation of air.
Participation of water in biological reactions Participation of water in biological reactions
Movement of Water in the World Ocean Movement of Water in the World Ocean
What type of errors are these: calling only large dogs a dog and calling a dog a kitty? What type of errors are these: calling only large dogs a dog and calling a dog a kitty?
Cycads, a Type of Gymnosperm Cycads, a Type of Gymnosperm
Video: Passive Smoke Exposure

For a complete list of videos, visit our video library