Chapter 96- Steam Heating Equipment Flashcards Preview

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Flashcards in Chapter 96- Steam Heating Equipment Deck (13)
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1
Q

What is hydronic

A

Hot water

2
Q

How does steam heating work

A

Steam gives up its latent heat within radiators and condenses back to liquid heating the room

3
Q

Three types of radiators

A

Floor type
Window type
Wall-Hung

4
Q

What is a convector

A

Hot water or steam flows through finned tubes that have increased heating surface that exchange heat with the air to heat a room, same as in the college dorms

5
Q

In a convector what supplies air circulation

A

Natural convection

6
Q

Difference between a convector and a unit heater

A

A unit heater has a fan that circulates the air

7
Q

What are fin coils / reheat coils

A

In air heated buildings finned tubes with hot water are placed in vents so that air is heated by flowing through them

8
Q

Unit ventilators are

A

A fin coil system that have a fresh air inlet and dampers

9
Q

How does a unit ventilator work

A

By manipulating a damper inside the unit that either circulates fresh cool air in to the building or by recirculating air from the heated room to raise the temperature cumulatively

10
Q

What does the auxiliary equipment in a steam heated building include

A
Air vents
Radiator valves
Radiator traps
Condensate receiver and pump
Vacuum pumps
11
Q

Why is air undesired in a steam heating system

A

Block the flow of steam
Reduce heat transfer rates
Promotes corrosion

12
Q

What are air vents for

A

To remove air trapped in the high points of the system

13
Q

What is a radiator trap?

A

A thermostatic traps that expands when hot and contracts when cooler condensate fills it allowing trapped water to vent out