Vapour Absorption Cycle Questions

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SUMMARY

The discussion focuses on the functioning of vapour absorption cycle machines, specifically water ammonia refrigerators. Key points include the role of the water absorber, where water is essential for dissolving ammonia, and the state of ammonia in the water-ammonia solution, which is primarily liquid. Additionally, the heat release during absorption is due to the condensation of gaseous ammonia into a liquid state within the solution. These insights clarify the operational principles of absorption refrigeration systems.

PREREQUISITES
  • Understanding of vapour absorption refrigeration principles
  • Knowledge of thermodynamic cycles
  • Familiarity with ammonia as a refrigerant
  • Basic concepts of heat transfer in refrigeration systems
NEXT STEPS
  • Research the thermodynamic properties of ammonia in refrigeration applications
  • Explore the design and efficiency of water ammonia absorption systems
  • Learn about the heat exchange processes in vapour absorption cycles
  • Investigate the environmental impact of using ammonia as a refrigerant
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Engineers, HVAC professionals, and students studying refrigeration technology who seek to deepen their understanding of vapour absorption cycles and their applications in cooling systems.

Brett0
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Questions on absorption coolers
Hi all,

I'm doing some research on vapour absorption cycle machines, mainly water ammonia refrigerators.
I've got a few questions.

1. What is the role of the water absorber? ie why do we need the water?
2. In the absorber we have a water ammonia solution. Is the ammonia a gas in the solution (like C02 in coca cola) or liquid, like mixing bourbon and coke (bad example I know)
3. There is always a mention of heat being released in absorption. Is that because the ammonia is becoming a liquid in the water-ammonia solution? is the absorption process condenses the hot gaseous ammonia?

Any help would be fantastic
 
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