How increase in evaporator increases Refrigeration effect?

In summary, the conversation discusses the concept of refrigeration effect and its relationship to evaporator temperature in a vapour compression system. The refrigeration effect is defined as the amount of heat absorbed by each pound of refrigerant to produce useful cooling. The speaker is struggling to understand this concept and asks for help in interpreting a TS diagram for R134a refrigerant.
  • #1
Ravi Singh choudhary
125
7
It appears very non intuitive to me seeing TS diagram of vapour compression system; Area under the curve increases. But how seriously how higher evaporator temperature will lead to higher refrigeration effect. Refrigeration effect means lower temperature.
 
Engineering news on Phys.org
  • #2
Put 'refrigeration effect' in search and you get this ..."Net Refrigeration Effect is. "the quantity of heat that each pound of refrigerant absorbs from the refrigerated space to produce useful cooling"."

Refrigeration effect is a measure of how efficient the refrigerator is (in it's use of fluid), not how cold it gets.
 
  • Like
Likes russ_watters
  • #3
oz93666 said:
Put 'refrigeration effect' in search and you get this ..."Net Refrigeration Effect is. "the quantity of heat that each pound of refrigerant absorbs from the refrigerated space to produce useful cooling"."

Refrigeration effect is a measure of how efficient the refrigerator is (in it's use of fluid), not how cold it gets.
Just see the TS diagram of say taking R134a refrigerant. I am not getting it :( please help
 
  • #4
Ravi Singh choudhary said:
Just see the TS diagram of say taking R134a refrigerant. I am not getting it :( please help
The issue is that you are arguing against a definition. The definition is as @oz93666 said.
 
  • Like
Likes Ravi Singh choudhary

FAQ: How increase in evaporator increases Refrigeration effect?

1. How does increasing the size of the evaporator affect the refrigeration effect?

Increasing the size of the evaporator allows for more surface area for heat exchange to occur. This means that a larger amount of refrigerant can be evaporated, resulting in a higher refrigeration effect.

2. What is the relationship between the evaporator temperature and the refrigeration effect?

The evaporator temperature plays a crucial role in the refrigeration effect. As the temperature of the evaporator decreases, the refrigeration effect increases. This is because colder temperatures allow for more heat to be absorbed from the surrounding environment, resulting in a more efficient refrigeration process.

3. How does increasing the evaporator pressure affect the refrigeration effect?

Increasing the evaporator pressure can also lead to an increase in the refrigeration effect. This is because higher pressure allows for a higher boiling point of the refrigerant, which means more heat can be absorbed from the surrounding environment before the refrigerant turns into a vapor.

4. What is the role of the evaporator in the refrigeration cycle?

The evaporator is an essential component of the refrigeration cycle. It is responsible for absorbing heat from the surrounding environment, which causes the refrigerant to evaporate and turn into a vapor. This vapor then travels to the compressor, where it is compressed and sent to the condenser for further cooling.

5. How does the design of the evaporator affect the refrigeration effect?

The design of the evaporator can greatly impact the refrigeration effect. The shape, size, and material of the evaporator can affect the efficiency of heat transfer and the amount of surface area available for heat exchange. A well-designed evaporator can result in a higher refrigeration effect and better overall performance of the refrigeration system.

Back
Top