Li-ion batteries prototypes manufacturing laboratory
/MDC DRYROOM
Task
Standard layout of an desiccant dehumidifier allows to carry out highly deep dehumidification of air, but at the same time there is a restrictive factor, such as humidity content in regeneration
air. Yet, an interesting task from Latvia appeared before our engineers. It is necessary to maintain practically zero humidity at temperature of 15ºC (this corresponds to less than -45ºC dew point
temperature) in laboratory of lithium-ion batteries.
Solution
This task was solved at developing of innovative dehumidification principal layout, which allows to dehumidify air to minimum. The distinguishing feature is that the air for dehumidification is
taken not from surrounding environment but it is taken from the already dehumidified air. Thus its dehumidification ability grows many times. We succeeded in getting humidity content 0.1g/
kg at temperature of 15ºC off the unit. For observing a balance in connection with air used for regeneration purpose, fresh air intake is necessary, which is cooled down to the uttermost for
condensing humidity from it. Then this air is mixed with return air and it is delivered for further dehumidification to an desiccant rotor. After dehumidification the air is cooled to the required
temperature. In such a way the unit MDC Dryroom solves the problem of deep dehumidification and cooling. The installation for 500 m³/h resolves the problem of 30 m³ premise in full. The installation is completed with the minichiller.
