Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
7 Cards in this Set
- Front
- Back
What are some types of cooling systems? |
Mechanical compression, Absorption, Evaporative, thermoelectric. |
|
What is evaporative cooling? |
The use of a water mist or spray to cool the air. |
|
Evaporative coolers can drop the air temperature by X if the entering air is dry. |
20 degrees Fahrenheit |
|
Misters and swamp coolers are examples of? |
Evaporative cooling |
|
What is the Peltier Effect? |
The principle that makes thermoelectric refrigeration work. When current flows through a thermocouple, one end heats up and the other cools down. |
|
Compression refrigeration cycle operating principles are? |
-Heat travels from hot to cold. -Liquids absorb large amounts of heat when they boil off to a gas. -Gases release large amounts of heat when they condense to a liquid. -When something is boiling or condensing, its temperature remains constant. -The temperature at which a liquid boils is controlled by its pressure. |
|
What is a metering device? |
Controls the flow of refrigerant into the evaporator of a refrigeration system. |