The unit works using the principle of adsorption and desorption of air humidity. Its main part is the sorption unit with a desiccant exchanger that allows for dehumidification even of air with low content of water vapor that can be found in desert conditions. Extracted water molecules accumulated in desiccant are then released at high temperature to smaller amount of air to increase itshumidity. High humidity from the air then condenses on the built-incooler in the unit as liquid water. This way, it is also possible to get water in desert conditions where ordinary condensing coolers do not produce any.
The Aqua Miraculosa autonomous unit consists of two containers – production and energy ones. The production container comprises the sorption unit, water reservoir, and a plant for treatment of the drinking water. Energy container comprises the battery repository, storage tanks for heat and cold. The solar roof is constructed over both containers. By connecting the roof with the containers, it is possible to produce and supply drinking water autonomously without a connection to energy grid. The outside dimensions of the containers in the top view are 2.4 × 6.0 m and the heightof containers is 2.9 m.
The Aqua Miraculosa unit can be operated in a totally autonomous way without the need of energy from external sources. The energy for its operation (electricity, heating. cooling) is taken from the local environment by solar roof. The energy is stored in the battery repository and the storage tanks of heat and cold.Therefore, The Aqua Miraculosa unit is suitable for areas without any infrastructure at all. The technology is optimized for operation in hot and dry climates (deserts); however, the process can be also adapted for other areas.
The Aqua Miraculosa type unit uses the total flow rate of outside air of 2000 m3/h and its average daily production is 100 liters in the dry and hot desert environment (climatic conditions of Riyadh) in autonomous operation. In such environment, the Aqua Miraculosa unit production of water, as compared to ordinary condensation-only units, about eight times higher. In case of typical desert conditions (air temperature: 30 °C, relative humidity: 20 %), the Aqua Miraculosa produces 8 liters of drinking water every hour, while mere cooling of the air using a cooler with the surface temperature of 5 °C does not produce any water at all.PRODUCTION