Is Hot Air from Freezers/Fridges Causing Failures?

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SUMMARY

The discussion centers on the impact of hot air from multiple refrigeration units in a sealed storeroom on their operational efficiency. Donna reports that her storeroom, measuring 5 x 2.5 x 4 meters, contains five fridges and freezers, leading to elevated temperatures of around 50°C overnight. The consensus is that the hot air expelled by the units is indeed causing operational failures. Installing an air conditioning unit or adding proper ventilation, such as an exhaust fan, is recommended to mitigate this issue.

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  • Understanding of thermodynamics related to refrigeration systems
  • Knowledge of air conditioning systems and their operation
  • Familiarity with ventilation principles in sealed environments
  • Basic physics of heat transfer and air circulation
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  • Research the installation and operation of commercial air conditioning units
  • Learn about proper ventilation techniques for sealed storage areas
  • Explore the physics of heat transfer in refrigeration systems
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This discussion is beneficial for facility managers, refrigeration technicians, and anyone responsible for maintaining temperature-controlled environments in storage facilities.

DonnaOz
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This isn't really in the usual thread of these forums but physics is what I need to provide the answers and I don't have a good enough grounding in the topic.

Here is my problem:

I have a storeroom that is about 5 x 2.5 x 4 m. At night it is locked up for around 12 hours duration. Inside the storeroom there is no proper ventilation. Beyond the cracks beneath and above the door and a blocked air condition vent (only adds a one meter cube of space to the room) it is a sealed room. Inside the room I have five fridges/freezers: one chest freezer, two double door freezers (2 x 2 x 1 m) and two double door fridges (2 x 1.5 x 1 m). When I walk in in the morning the air temp is usually pushing 50 C. And the freezer is usually hovering at or above 0 C. During the day, the door is kept open and everything operates normally.

My question is this: Is it the hot air being pumped from the freezers/fridges that is causing the freezer to fail?

If so, will installing an air con for use overnight fix this without proper vents?

Thanks for any help.
Donna.
 
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It is the hot air causing the problem. An air conditioner would work, but putting a vent in the door and running an exhaust fan at the air conditioner vent would probably work as well. In winter, the fan could blow cold outside air in.
 

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