Relative humidity

[mre212]

Dears,

what i need to maintain Humidity in carton store between 30 and 40% R.H. and temperature (21
-27 )deg.C

Thank you in avice

[mre212]

Dears,
what i need to do to maintain Humidity in carton store between 30 and 40% R.H. and temperature (21
-27 )deg.C. the current Humidity 52% and the temperature 30 deg.C

Thank you in avice

[Magoo]

Hi.
more information required. Is the storage area enclosed, insulated. And what volume is storage area.

[lana]

Dear mre212,

This is a common problem in medicine storage. I don't know if you studied Psychrometric.
When air is cooled and dehumidified (coil is wet), relative humidity of the air increases.

If a cold air like 21°C and lower RH is required then you need 2 processes and sometimes 4 processes.

Have a look at the attached file.

The difficult part is the control.

Cheers
LANA