A hybrid solar desalination process of the multi-effect humidification dehumidification and basin-type unit

Hou, Shaobo; Zhang, Hefei

doi:10.1016/j.desal.2007.01.055

Cited by 55 publications

(9 citation statements)

References 12 publications

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“…The combination of two or more desalination processes with a thermal power plant in the hybrid configuration systems is achieved to produce fresh water with a low cost 59,80 . Hou and Zhang 83 studied a hybrid solar WDS using a heating source of multieffect with an evacuated tube solar collector. The results denoted that the GOR increased by two to three at least by reusing the rejected water.…”

Section: Classifications Of Hdh Systemsmentioning

confidence: 99%

Desalination process using humidification–dehumidification technique: A detailed review

et al. 2020

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Summary The lack of fresh water resources is one of the important reasons obstructing progress all over the world. To overcome this crucial situation, the water desalination system (WDS) is progressed, enhanced, and modified. The desalination plant is mostly powered by nonrenewable energy resources, mainly by fossil fuels that make it an expensive and high‐energy‐consuming technology. Therefore, it is indispensable to depend on renewable energy supplies to drive desalination systems. Recently, the total thermal energy desired to operate the humidification–dehumidification desalination systems can be gained from renewable/sustainable energy resources such as geothermal energy and solar energy. Among the different desalination techniques, the HDH is considered one of the most effective desalination techniques to manage the critical issue of shortage of drinking water. The current paper presents a comprehensive review of diverse types of HDH desalination systems as well as their fundamental components. The present work revealed that the seawater HDH system is a promising technology to produce fresh water, particularly for decentralized demand. The packed bed humidifier is the most utilized type in the HDH water desalination system than other types of humidifiers. Furthermore, the direct dehumidifier enhances the performance of HDH desalination system compared to the indirect one. The present study concludes that the hybrid energy systems have the highest gain output ratio, while the thermal energy systems have the lowest gain output ratio. Water heating with solar energy has a significant enhancement in system productivity compared with solar air heating. The HDH WDS incorporated with heat pump achieves appropriate system productivity and gain output ratio with the lowest cost per liter.

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Section: Classifications Of Hdh Systemsmentioning

confidence: 99%

Desalination process using humidification–dehumidification technique: A detailed review

et al. 2020

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“…At the end of this section, there is a water droplet eliminator to remove any water droplets. The dehumidification process is divided into two sections, (4) and (5). In section (4), a water-cooled heat exchanger, made of 3/8-inch copper tubes with 169 aluminum rectangular fins, is used.…”

Section: Air Flowmentioning

confidence: 99%

“…Humidification-Dehumidification Desalination (HDH) is a safe, promising desalination technology suitable for low-quality energy sources such as low-temperature solar or waste heat energies. This method has several advantages, such as the ability to operate with low-grade heat energy, constant pressure, and low running costs, making it suitable for producing freshwater in remote rural areas [4][5][6][7][8]. The HDH system concept consists of two steps: 1.…”

Section: Introductionmentioning

confidence: 99%

A Novel Humidification Technique Used in Water Desalination Systems Based on the Humidification–Dehumidification Process: Experimentally and Theoretically

Tourab

Blanco-Marigorta

Elharidi

et al. 2020

Water

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In this paper, an experimental and theoretical investigation is performed on a novel water desalination system based on a humidification–dehumidification technique using a heat pump. An ultrasonic water atomizer is used in the humidification process in order to improve the humidification system. In addition to that, a new configuration is employed in the humidification process (hybrid atomization system), which combines the traditional spraying atomization system and the ultrasonic water atomizer. The new humidification system performance is investigated and compared with the spraying water atomizer system in terms of humidification effectiveness and freshwater productivity. The results show that the ultrasonic water atomizer has enhanced and improved humidification effectiveness, and consequently, the productivity of freshwater. The maximum humidification effectiveness and productivity achieved by the ultrasonic water atomizer are 94.9% and 4.9 kg/h, respectively, meaning an increase of 25.2% and 18.8%, compared to the traditional spraying atomization system. The hybrid system increases humidification effectiveness and productivity by 3.8% and 8.2%, respectively, in comparison with the stand-alone ultrasonic water atomizer. A cost analysis was also carried out in this paper in order to perform an economic comparison of different humidification processes (spraying, ultrasonic; and hybrid atomization systems). The minimum production cost of one liter of freshwater amounts to $0.0311 with the spraying system, $0.0251 with the ultrasonic system, and $0.0250 with the hybrid atomization system. These results reveal the profitability of the new configuration.

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“…For the cycles considered here, Q in = Q HT . In the case of solar still has a GOR equal unity [96], it means that the system requires enough heat input to directly vaporize all of the produced water and that there is an ineffective energy recovery. A basic solar still will have a GOR of approximately 1, or less owing to losses.…”

Section: Gained Output Ratio (Gor)mentioning

confidence: 99%

Water Desalination Using a Humidification-Dehumidification Technique—A Detailed Review

Kabeel¹,

Hamed²,

Omara³

et al. 2013

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Solar humidification-dehumidification desalination technology has been reviewed in detail in this paper. This review would also throw light on the scope for further research and recommendations in active distillation system by humidification and dehumidification (HDH). Also in this article, a review has been done on different types of (HDH) systems. Thermal modeling was done for various types of humidification and dehumidification (HDH) distillation system. From the present review, it is found that the humidification-dehumidification desalination process HDH will be a suitable choice for fresh water production when the demand is decentralized. HDH is a low temperature process where total required thermal energy can be obtained from solar energy. Capacity of HDH units is between that produced by conventional methods and solar stills. Moreover, HDH is distinguished by simple operation and maintenance. Also from the present condensed review, it was observed that an increase in evaporator and condenser surface areas significantly improves system productivity. But prior to implementing any techniques in design improvement, it is necessary to optimize the MEH unit by optimizing its component size to understand the effect of feed water and air flow rates. Although a fair amount of simulation studies have been conducted in the past, further design simulation is required to fully understand the complicated effects of air and water flow rates, the optimum size of individual components or modules of the unit and to generate a comprehensive model for the system.

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A hybrid solar desalination process of the multi-effect humidification dehumidification and basin-type unit

Cited by 55 publications

References 12 publications

Desalination process using humidification–dehumidification technique: A detailed review

Desalination process using humidification–dehumidification technique: A detailed review

A Novel Humidification Technique Used in Water Desalination Systems Based on the Humidification–Dehumidification Process: Experimentally and Theoretically

Water Desalination Using a Humidification-Dehumidification Technique—A Detailed Review

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