Investigation of a solar energy driven and hollow fiber membrane-based humidification–dehumidification desalination system

Li, Guopei; Zhang, Li‐Zhi

doi:10.1016/j.apenergy.2016.05.113

Cited by 74 publications

(7 citation statements)

References 34 publications

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“…is a feasible and potential solution. In addition, the lack of drinkable water often accompanies the abundance of solar radiation, which makes favorable the coupling of the desalination processes with the solar energy [36]. In the case of VMD, the permeate flux could be enhanced, when it is coupled with solar energy, and its value can be increased from the range of (5-15 l/h m 2 ) to that (40-85 l/h m 2 ).…”

Section: Coupling MD With Solar Energymentioning

confidence: 99%

Solar Membrane Distillation: Use of a Helically Coiled Fiber

Zrelli¹

2017

Distillation - Innovative Applications and Modeling

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Membrane distillation (MD) is a novel process introduced to overcome the disadvantages of the conventional distillation process. MD has gained much interest, principally, for its lower energy demand and higher rejection factors. Many configurations of the membrane module have been tested to improve the MD process. In this case, and in order to see the possibility of using the helically coiled fiber for MD coupled with solar energy, a mathematical model has been developed. This model describes the evolutions of permeate flow rate with the variation of inlet feed characteristics, solar flux, and so on. A comparison between the use of linear and helically-coiled fiber shows an enhancement of the temperature polarization coefficient about 6% for the case of the helical fiber and to have an improvement factor by 28%. For the case of the effect of solar energy on the permeate flow rate, an increase of 264% is remarked for the variation of the direct solar flux from 200 to 800 W/m 2 . However, a reduction of 12% for the permeate flux is obtained, when the inlet feed concentration grows from 10 to 300 g/l.

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Section: Coupling MD With Solar Energymentioning

confidence: 99%

Solar Membrane Distillation: Use of a Helically Coiled Fiber

Zrelli¹

2017

Distillation - Innovative Applications and Modeling

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“…Huang et al [25,26] conducted several researches into an elliptical hollow fiber membrane tube bank, which is a more normal case in reality, the local and average Nusselt and Sherwood numbers under the conjugate heat and mass transfer boundary condition are obtained. Applications of membrane-based liquid desiccant humidification in real industry have also been reported [27][28][29].…”

Section: Introductionmentioning

confidence: 97%

Parametric analysis of a cross-flow membrane-based parallel-plate liquid desiccant dehumidification system: Numerical and experimental data

Bai

Zhu

Chen

et al. 2018

Energy and Buildings

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Operating parameters of a membrane-based parallel-plate liquid desiccant dehumidification system are investigated in this paper. The liquid desiccant and air are in a cross-flow arrangement, and separated by semi-permeable membranes to avoid carry-over problem. A numerical model is developed to simulate the system performance, and validated by experimental and analytical results. Impacts of main operating parameters on the system performance (i.e. sensible, latent and total effectiveness) are evaluated, which include dimensionless parameters (i.e. solution to air mass flow rate ratio * and number of heat transfer units ), solution properties (i.e. concentration and temperature ) and inlet air conditions (i.e. temperature , and relative humidity , ). It is found that * and are two of the most important parameters influencing the system effectiveness. Even though the system performance can be improved by * and , its increasing gradient is limited when * and exceed 1 and 4 respectively. Decreasing solution temperature does not make a great improvement to the system performance, however, increasing solution concentration is a good approach to enhance the latent effectiveness without influencing the sensible effectiveness. The system shows the broad adaptability in various weather conditions, and has the ability to provide relative stable state supply air.

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“…The additional heat sources and saline water cooling were no longer required at the steady state operation. A test rig of a solar powered HDH desalination system has been designed and constructed by Li and Zhang [26]. The humidifier of the system is made of a hollow fiber membrane module, while the dehumidifier is equipped with a fin-and-tube heat exchanger.…”

Section: Introductionmentioning

confidence: 99%

Integration of a MSF Desalination System with a HDH System for Brine Recovery

2021

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A hybrid Multi-Stage Flash–Humidification Dehumidification (MSF-HDH) desalination system is investigated for energy recovery from an MSF system. The hybrid MSF-HDH system increases total productivity and performance ratio and reduces brine rejection. Hot condensed steam that leaves the MSF brine heater is used to warm the rejected pretreated brine from MSF to a higher temperature suitable for HDH system operation (about 60 °C). This allows us to increase the product (desalinated water) without additional “external” energy input to the hybrid system. Four different layouts of the integrated MSF-HDH system are presented and compared. The results show that an HDH system can utilize over 66% of an existing MSF brine blowdown, while the hybrid system can achieve a gained output ratio—GOR, water recovery ratio—RR, productivity and freshwater cost of 8.73, 44.86%, 30,549 m3/day and 1.068 $/m3 of freshwater, respectively. Utilizing 66.96% of MSF brine blowdown by the HDH system leads to a daily HDH productivity of about 670 m3 of drinking water, which is enough to support 134,000 persons considering a daily consumption of 5 L of drinking water per person.

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Investigation of a solar energy driven and hollow fiber membrane-based humidification–dehumidification desalination system

Cited by 74 publications

References 34 publications

Solar Membrane Distillation: Use of a Helically Coiled Fiber

Solar Membrane Distillation: Use of a Helically Coiled Fiber

Parametric analysis of a cross-flow membrane-based parallel-plate liquid desiccant dehumidification system: Numerical and experimental data

Integration of a MSF Desalination System with a HDH System for Brine Recovery

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