Desalination system also produces hydrogen, electricity and cool air for refrigeration

A pair of engineers at Hamad Bin Khalifa College has developed a desalination system that additionally produces electrical energy, hydrogen and funky air for refrigeration. Of their paper printed within the journal Desalination Nurettin Sezer and Sertac Bayhan describe their modularized system.

Local weather change requires adaptation in locations which can be already sizzling and dry. Mitigation usually entails creating applied sciences for eradicating salt from ocean water or brackish marshlands; producing renewable energy sourcescomparable to hydrogen; and constructing gadgets to chill properties and buildings. On this new effort, the workforce in Qatar has developed a modularized system that may do all three.

The system begins with an array of bifacial c-Si PV (photo voltaic) panels, every capable of produce as much as 600 watts, with an estimated effectivity of 23.2%. The system, the workforce notes, ought to be capable to produce as much as 1.5 MW of electricity utilizing 10,785 m² of the panels. The system divides that electrical energy: 100 kW is used as a direct power provide, and the remaining goes to a system used to precool groundwater and energy water pumps.

One other module makes use of a vapor compressor together with a refrigerant to relax the saline water to the diploma that ice crystals kind. The ice crystals are contemporary water; the remaining salt is eliminated. The ice is positioned in a storage container and air blown over it chills air pumped right into a room, offering air con. After the ice melts, it may be used for quite a lot of functions, together with offering consuming water or irrigating crops.

One more module takes a number of the water and electrical energy produced and additional purifies it utilizing electro-deionization. A proton change membrane electrolyzer deionizes the water, ensuing within the manufacturing of hydrogen gasoline, which will be collected and used as an power supply.

Within the system they constructed, the desalination and air con run in the course of the day, whereas the electrolyzer runs at night time. In line with the paper, every day, the system can generate 2.4 WMh of electrical energy, 52.8 m³ of contemporary water and 6.3 MWh for air con in addition to 177 kg hydrogen to retailer power for nighttime use.

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