Will this increase the Coefficient of performance of my refrigerator?

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SUMMARY

Orienting a refrigerator with the condenser coils facing a glass door can increase its Coefficient of Performance (CP) by reducing the temperature difference between the condenser and the environment. This configuration allows for a smaller Qh-Qc value, thus enhancing efficiency. The compressor will operate less frequently, potentially extending its lifespan. While this setup may block access to the door, it does not pose any risk of damage to the refrigerator.

PREREQUISITES
  • Understanding of thermodynamics, specifically the Coefficient of Performance (CP)
  • Knowledge of refrigerator components, particularly condenser coils
  • Familiarity with energy transfer concepts, including Joules and heat exchange
  • Basic principles of HVAC systems and their impact on indoor climate
NEXT STEPS
  • Research the thermodynamic principles behind Coefficient of Performance (CP) in refrigeration systems
  • Explore the design and function of refrigerator condenser coils
  • Investigate the effects of indoor temperature on appliance efficiency
  • Learn about energy-efficient practices for home cooling and heating
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Homeowners, HVAC technicians, and appliance engineers interested in optimizing refrigerator efficiency and understanding the impact of environmental factors on appliance performance.

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If I orient my refrigerator such that the condenser coils at the back are facing a glass door (least insulation in room, cold outdoors) will CP increase? CP=Qc/(Qh-Qc) so Qh-Qc will be smaller thus CP larger. Could this damage refrigerator?
 
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Yes it would increase the efficiency, no it wouldn't cause damage. But it would block the door.
 
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russ_watters said:
no it wouldn't cause damage
Better than that; the compressor will last longer because it won't be running quite so much.
However, every Joule of energy that you put into the fridge turns up as some extra heating for the house. In winter, the fridge is doing its bit and largely costs nothing to run (if you care to look at it that way). In summer, your glass door trick could be of benefit, particularly if you use A/C.
 

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