According to the psychrometric chart, it is possible to incorporate a solar desiccant system with indirect evaporative cooling. Because desiccant dehumidification would raise the air temperature a little bit, cooling is certainly required either before or after. From the psychrometric chart, we can say that there is no difference between doing cooling first or dehumidification first. This is a widely adaptive strategy, which might even be able to further replace the HVAC system. If the system is also equipped with a filter at the air inlet, it could also deal with air quality.