Use of Portland cement as heat storage medium in solar desalination

Reliability of thermal desalination (solar stills) for water/wastewater treatment in light of COVID-19 (novel coronavirus “SARS-CoV-2”) pandemic: What should consider?

“…In some cases researchers uses specific geometry for solar still such as double-slope [ 28 , 29 ], tubular [ 30 , 31 ], pyramid [ 32 , 33 ], hemispherical [ 34 , 35 ], spherical [ 36 , 37 ], stepped [ 38 , 39 ], and asymmetrical [ 40 , 41 ] to make an improvement on system. The most prominent passive techniques can be mentioned such as using energy absorbing/storing materials (sands, cement, and marble pieces) [ [42] , [43] , [44] ], porous media [ 45 , 46 ], utilizing phase change materials (PCMs) [ [47] , [48] , [49] , [50] ], using wicks [ [51] , [52] , [53] ], fins [ 54 , 55 ], internal/external reflectors [ [56] , [57] , [58] ], film cooling [ [59] , [60] , [61] ], increase the rate of heat and mass transfer by utilizing different nanoparticles in absorber/fluid/cover of solar stills [ [62] , [63] , [64] , [65] , [66] , [67] , [68] , [69] , [70] ]. Meanwhile, integration with humidification-dehumidification systems [ 71 , 72 ], thermoelectric modules (for heating and cooling) [ 73 , 74 ], and external/internal condensers [ 75 , 76 ] are another modifications for enhancing the performance of system.…”

Deciphering mineralogical changes and carbonation development during hydration and ageing of a consolidated ternary blended cement paste

“…How does cement, the most widely used industrial material in the world, interact with its environment? Understanding, quantifying and controlling cement-based material reactivity has profound implications for a wide range of industrial and environmental issues, such as modern building durability and sustainability (Ioannidou et al, 2016), the overall integrity and long-term performance of a reinforcing structure (Kwon et al, 2017), worldwide anthropogenic carbon dioxide production (Uwasu et al, 2014), solar-powered desalination (Sellami et al, 2016) and nuclear waste encapsulation/waste storage facility performance (Alonso et al, 2010;Bildstein & Claret, 2015). Concrete has a long history that began in the pre-Roman age.…”

Desalination using solar stills: A review

“…Heat storage materials should have a high thermal capacity and low thermal conductivity. The materials having heat storage capacity are fins, sponges, wick, iron scrap, corrugated absorber plates, charcoal, gravels, Portland cement, a mixture of Portland cement, and alluvial sand, sand, paraffin wax, corrugated material, zinc nitrate, ethylene glycol, and so forth 37,38 . Sellami et al 38 studied the effect of thickness of blackened sponge on water productivity.…”