Many different types of desiccant systems await designers out there, and it can be very confusing to sort through them all. There are liquid systems, solid systems, commercial systems, industrial systems, active systems, passive systems. You get the idea.
So when someone wants to talk about desiccant systems, you first need to narrow the conversation down to application and type if you want to be on the same page. Then you have to figure out how the desiccant system is to be used - are you interested in trying to cool with it, are you going to use it to help precondition the outside air, or do you just want to reduce the load on the mechanical cooling system?