Experimental investigation of a bubbling humidification-dehumidification desalination system directly heated by cylindrical Fresnel lens solar concentrator

Xiao, Jianwei; Zheng, Hongfei; Jin, Rihui; Liang, Shen; Wang, Ge; Ma, Xinglong

doi:10.1016/j.solener.2021.04.006

Cited by 46 publications

(12 citation statements)

References 32 publications

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“…The ability to carry water in the air increases with an increasing temperature according to the psychrometric chart, making more water available for condensation in the dehumidifier, thus increasing the produced freshwater. This trend is similar to the one obtained by Xiao et al (2021). Increasing the temperature from 26 to 40 °C increases the produced freshwater by 6%.…”

Section: Effect Of An Operating Parameter On the Produced Freshwatersupporting

confidence: 88%

Performance evaluation of an HDH desalination system using direct contact packed towers: experimental and mathematical modeling study

Zarei

Miroliaei

2022

Journal of Water Reuse and Desalination

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Humidification–dehumidification desalination (HDH) is one of the suitable methods for desalination of saline and brackish water in a small scale. In this research, a HDH desalination method with a direct contact dehumidifier has been analyzed theoretically and experimentally. The setup consists of two similar packing towers for humidification and dehumidification, 10 inches in diameter, which are filled up to 1 m with Rushing packing. In this new HDH configuration, seawater and freshwater recirculation has been used in humidifier and dehumidifier sections, respectively. A steady-state mathematical model based on the mass and energy equations for each system component is presented. The effect of various input parameters on the freshwater production, gain output ratio (GOR) and specific energy consumption has been investigated. The results revealed that the inlet seawater and air temperature to the humidification tower had the highest and the lowest effect on the produced freshwater, respectively. Also, the maximum value of the GOR is 3.3, which is obtained in the equilibrium condition of the dehumidifier. The experiments show that the freshwater production of the proposed HDH device is 300 L/day, which can provide water for domestic consumption of a small family.

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Section: Effect Of An Operating Parameter On the Produced Freshwatersupporting

confidence: 88%

Performance evaluation of an HDH desalination system using direct contact packed towers: experimental and mathematical modeling study

Zarei

Miroliaei

2022

Journal of Water Reuse and Desalination

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“…As can be seen from the table, the values of GOR and productivity are lower and some ones are higher than that of the present study. It should be noted that the variation on productivity and GOR is mainly due to different operating conditions, heating source, and capacity, as also denoted by Xiao et al 59…”

Section: Itemsmentioning

confidence: 94%

Performance assessment of a desalination system integrated with ground heat exchanger for hydrogen and fresh water production

Hürdoğan

2021

Env Prog and Sustain Energy

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Ground heat exchangers, which enable the utilization of shallow geothermal energy, have been widely used in recent years in order to improve the performance of systems. In the present study, theoretical performance of a humidificationdehumidification desalination system integrated with a ground heat exchanger in order to increase the productivity of the system was investigated. The system employed photovoltaic-thermal panels and polymer electrolyte membranes to meet the electrical and thermal energy requirement as well as producing hydrogen, respectively. The present study examined the impact of each parameter, namely solar radiation, soil temperature, and mass flow rate on the gained output rate, thermal efficiency of the photovoltaic-thermal panel, the amount of fresh water, and hydrogen production. The results revealed that the solar radiation, soil temperature, and the mass flow rate ratio had a significant impact on the performance of the system, and that the capacity of hydrogen and fresh water production, and the gained output ratio of the system were in the range of 0.08-0.16 kg/h, 2-16 kg/h, and 0.1-0.5, respectively.

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“…The use of the Fresnel lens as shown in Fig. 7 has the attractive characteristic to redirect the concentrated radiations, which could be combined with a unit to receive the lights; it was shown that such use of Fresnel in solar radiation would produce about 355 kg/day, and the cost of it around $23.4/m 3 [32].…”

Section: Fresnel Lens Application In Solar Desalinationmentioning

confidence: 99%

Water Desalination Driven by Solar Energy

Al-Saidat

Gomaa

2022

1790-5044

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The abundance of drinking water is necessary for daily needs, but recently it has become a worrying obsession worldwide, as it requires the use of fossil fuels for its production, and since the whole world is moving to reduce greenhouse gases emissions, it was necessary to think about using alternative renewable energy in the production of drinking water and that was through desalination of salty water. Solar energy has been widely used. The methods that use solar power are divided into direct and indirect, which include several steps, and the solar energy systems used are varied. In the present study, desalination methods and some types of solar energy systems used are mentioned with a comparison of the amount of production and costs, in addition to the improvement resulting from the use of PCM. It was found that the solar Fresnel lens system is the most effective in producing fresh water compared with its cost. The solar desalination stations in Jordan are 29 and only 1 solar-powered desalination plant out of them, but the universities and independent factories have their solar deamination systems.

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Experimental investigation of a bubbling humidification-dehumidification desalination system directly heated by cylindrical Fresnel lens solar concentrator

Cited by 46 publications

References 32 publications

Performance evaluation of an HDH desalination system using direct contact packed towers: experimental and mathematical modeling study

Performance evaluation of an HDH desalination system using direct contact packed towers: experimental and mathematical modeling study

Performance assessment of a desalination system integrated with ground heat exchanger for hydrogen and fresh water production

Water Desalination Driven by Solar Energy

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