How increase in evaporator increases Refrigeration effect?

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SUMMARY

The discussion centers on the relationship between evaporator temperature and refrigeration effect in vapor compression systems, specifically using R134a refrigerant. It is established that the refrigeration effect is defined as the quantity of heat absorbed by the refrigerant from the refrigerated space, which measures the efficiency of the refrigeration process rather than the temperature achieved. The TS diagram illustrates that an increase in evaporator temperature can lead to a higher refrigeration effect, challenging common intuitions about cooling efficiency.

PREREQUISITES
  • Understanding of vapor compression refrigeration cycles
  • Familiarity with thermodynamic principles, specifically TS diagrams
  • Knowledge of refrigerants, particularly R134a
  • Basic concepts of heat transfer and efficiency in refrigeration systems
NEXT STEPS
  • Study the thermodynamic properties of R134a refrigerant
  • Learn how to interpret TS diagrams in refrigeration systems
  • Investigate the impact of evaporator temperature on system efficiency
  • Explore definitions and calculations related to net refrigeration effect
USEFUL FOR

Engineers, HVAC technicians, and students studying refrigeration systems who seek to deepen their understanding of thermodynamic efficiency and the role of evaporator temperature in vapor compression cycles.

Ravi Singh choudhary
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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.
 
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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.
 
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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
 
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.
 
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