3 replies to this topic

[rsk]

In a typical water vapour adsorption dryer one of the bed is being regenerated while other in adsorption cycle. Regeneration is a cyclic process whereby bed of dessicant is heated by recirculation of hot air through bed . The moisture laden hot air is cooled by chilled water in condenser for removal of moisture then reheated by heater and recirculated to bed.The process is continued for 3 hrs during which the hot air temp from bed outlet which is inlet to condenser rises gradually while on other side of condenser constant flow chilled water is maintained. In this case condenser thermal performance will vary with progress of heating.

[rsk]

How thermal efficiency of condenser will vary. What factors will decide...

[Bobby Strain]

The material in the dryer is desiccant. This does not sound like a real application. What is your interest?

 

Bobby

[Art Montemayor]

RSK:

 

Like Bobby Strain, I am also at a loss as to what you are inquiring about and your written description of what I believe is an adsorption drying process is difficult to understand.

 

Kindly refer to the attached flow diagram of an adsorption drying system I've designed and built in the past for CO₂.  I've also used this same process for air, nitrogen, oxygen, natural gas, and nitrous oxide.  I know it works and it has met all specified design results - with a product dew point as low as -90 ^oF.  I've designed other configurations, but I think this is something like what you are trying to describe.

 

If your process configuration is different from mine, draw a correct version of yours and submit it in this thread.  Use the sketch to correctly explain your query.

 

Await your reply.

 

 Adsorption System Configuration.xlsx   20.1KB   177 downloads