Simulation and optimization study of the humidification–dehumidification desalination process

Abdel-Hady, Faissal; Abdel-Hady, Mohammed Alghamdi Faissal; Alghamdi, Mohammed; Mazher, A. K.; Al-Zahrani, Abdulrahim Ahmad

doi:10.5004/dwt.2019.23476

Cited by 4 publications

(1 citation statement)

References 25 publications

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“…The expense of water delivered is $/L 0.0114. Table 5 shows a comparison for the pervious works 50‐61 . The cost of the proposed system is low cost than the others also the annual production reaches 17 500 L.…”

Section: Cost Analysismentioning

confidence: 99%

Experimental investigation of two‐stage humidification‐dehumidification desalination system integrated with an innovative oxy‐hydrogen ( HHO ) system

et al. 2021

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The current research experimentally investigated a sustainable desalination method to maximize freshwater production at minimal costs. Solar photovoltaics are used as a source of clean and renewable energy. The system used in conducting the experiments consists of: an air heater, water heater, two stages of cross-flow humidification, two stages of cross-flow dehumidification, and an oxyhydrogen gas generator. The setup's working principle is the open-air and closed water cycle. A centrifugal fan blows the ambient air to pass through the air heater. Air is heated through a heat exchanger, which is consequently heated by hot water. Water is heated using a new heating approach by using a mixture of 20% natural gas and 80% hydrogen gas with less impact on environmental pollution. Air is then humidified through two-stage humidification systems using a high water temperature technique, then through the innovative vibrating plate circuit, respectively. The humidified air is condensed through two consecutive dehumidification heat exchangers. The system parameters are optimized to enhance freshwater productivity. The studied operative parameters are air mass flow rate, water mass ratio (WMR), and the effect of adding a second stage of humidification. The results showed that the maximum daily productivity is 49.3 kg/day. The optimum air mass flow rate and water mass ratio to obtain maximum productivity was found to be 0.375 kg/s and 0.6, respectively. Furthermore, the experiments' results showed that two-stage humidification enhanced freshwater productivity by 23.25% than that of the single stage of humidification. Finally, an economical study analysis conducted for the test rig showed the cost per liter to be 0.

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Section: Cost Analysismentioning

confidence: 99%

Experimental investigation of two‐stage humidification‐dehumidification desalination system integrated with an innovative oxy‐hydrogen ( HHO ) system

et al. 2021

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Solar humidification-dehumidification desalination systems: A critical review

Kasaeian

Babaei

Jahanpanah

et al. 2019

Energy Conversion and Management

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Simulation approach of chamber purging experiment by nitrogen gas

Marjunus

2020

J. Phys.: Conf. Ser.

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Chamber purging is usually required in a gas sensing research, in order to make a perfect dry air condition (Relative Humidity/RH = 0%) in the chamber. An experiment shows that RH of the cylindrical chamber (volume = 7.5 cm3) never touch 0% (only 32% and 4%) although it was purged by 100 and 300 sccm of synthetic air (consists of 20% O2 and 80% of N2). It was also obtained the same condition when N2 gas was used instead of synthetic air. In order to understand this experiment’s results, a simulation has been done. The simulation approach using a box-form chamber (volume = 9.6 cm3) shows that the combination of the diffusion-convection process of N2 gas is responsible for the results of the chamber purging experiment instead of pure diffusion or pure convection. For the future step, it is needed further investigation (experiment and simulation) in order to reach 0% RH.

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Simulation and optimization study of the humidification–dehumidification desalination process

Cited by 4 publications

References 25 publications

Experimental investigation of two‐stage humidification‐dehumidification desalination system integrated with an innovative oxy‐hydrogen ( HHO ) system

Experimental investigation of two‐stage humidification‐dehumidification desalination system integrated with an innovative oxy‐hydrogen ( HHO ) system

Solar humidification-dehumidification desalination systems: A critical review

Simulation approach of chamber purging experiment by nitrogen gas

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