Removing Water from Fixed Volume

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SUMMARY

The discussion focuses on optimizing the removal of residual water from a fixed volume tank using a dehumidifier. The user plans to seal the dehumidifier inside a box connected to the tank, allowing for efficient water extraction. Key factors include the relationship between pressure, temperature, and humidity, with the user suggesting that slightly reducing pressure and increasing temperature may enhance dehumidification efficiency. The Clausius-Clapeyron relation is referenced as a resource for understanding these thermodynamic principles.

PREREQUISITES
  • Understanding of the Clausius-Clapeyron relation
  • Knowledge of dehumidifier operation and efficiency
  • Familiarity with measuring relative humidity
  • Basic principles of thermodynamics, specifically pressure and temperature effects
NEXT STEPS
  • Research the Clausius-Clapeyron relation in detail
  • Explore dehumidifier specifications and performance metrics
  • Learn about the effects of pressure and temperature on humidity levels
  • Investigate methods for measuring and controlling pressure in a sealed environment
USEFUL FOR

Engineers, HVAC professionals, and anyone involved in moisture control and thermodynamic processes will benefit from this discussion.

JTMechEng
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Hi All,

I have a fixed volume inside a tank that when it warms up from freezing, residual water collects inside. I'm trying to remove this water by using a store bought dehumidifier. My plan is to put the dehumidifier inside a box, and seal it to the opening of the tank. Piping the removed water outside of the box.

I know from measuring the relative humidity inside I can estimate the amount of water that has collected inside my known fixed volume.

What I'd like to do is find the optimum pressure and temperature so that the water content is removed in the most efficient manner, ie quickest!

My gut is telling me I need to slightly reduce the pressure inside and raise the temperature to have the most effective dehumidifying effect.

Can anyone help on the relationship between pressure, temperature and humidity?
 
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