Thermal-exergy efficiency trade-off optimization of pressure retarded membrane distillation based on TOPSIS model

Cao, Han; Mao, Yanpeng; Wang, Wenlong; Gao, Yibo; Zhang, Miaomiao; Zhao, Xinbing; Sun, Jing; Song, Zhanlong

doi:10.1016/j.desal.2021.115446

Cited by 12 publications

(5 citation statements)

References 52 publications

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“…The energy efficiency of the DCMDC without the CR unit in the current study, 93.3%, is larger than 70% of the maximum energy efficiency mentioned by Al-Obaidani et al [56] and in the range of 70% to 95% energy efficiency values mentioned by Ullah et al [54]. The exergy efficiency of the DCMDC without the CR unit in this study, 48.1%, is larger than 43.4% of the value mentioned by Cao et al [55], and lower than 78% of the value mentioned by Ali [57], since the feed stream temperature of the DCMDC of this study and the feed stream temperature mentioned in the literature are different, wherefore the obtained exergy efficiency and energy efficiency of this study with the literature values are also different.…”

Section: Results Validation and Efficienciescontrasting

confidence: 69%

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Thermodynamics Analysis of a Membrane Distillation Crystallization Ion Recovery System for Hydroponic Greenhouses Assisted with Renewable Energy

Alshebli

Biçer

2023

Sustainability

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Sustaining agricultural demands is a typical problem, particularly in locations afflicted by the scarcity of fresh water, poor farming soil, and hot weather. The main goal of this study is to perform a thermodynamic analysis of an integrated multigeneration system containing a direct contact membrane distillation crystallization system that recovers beneficial hydroponic farming nutrients from seawater using renewable energy resources. A parametric study is carried out to determine the impacts of various factors on the system, such as changing the rate of mass flow rate, recovery ratio, and salinity. This study proposes a novel sustainable multigeneration system for seawater desalination and ions recovery using the direct contact membrane distillation crystallization system to provide the hydroponic solution and greenhouse ventilation using the dual evaporator vapor compression refrigeration system. With overall exergy efficiency and energy efficiency of 41.40%, and 39.80%, respectively, the system requires about 1182.69 kW and 5314.6 kW of electrical and thermal power in total, respectively, to desalinate 5 kg/s of seawater and recover 170 mg/s of Sulfate (SO4), 81.28 mg/s of Magnesium (Mg), 25.48 mg/s of Calcium (Ca), and 24.16 mg/s of Potassium (K), yielding about 4.4 kg/s of a hydroponic solution, and ventilating 25 greenhouses with a volume of 600 m3 of single greenhouse.

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Section: Results Validation and Efficienciescontrasting

confidence: 69%

“…The membrane distillation's exergy efficiency equation mentioned by Cao et al The membrane distillation's exergy efficiency equation mentioned by Cao et al [55] is:…”

Section: Results Validation and Efficienciesmentioning

confidence: 99%

Thermodynamics Analysis of a Membrane Distillation Crystallization Ion Recovery System for Hydroponic Greenhouses Assisted with Renewable Energy

Alshebli

Biçer

2023

Sustainability

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“…Eshoul et al [57] presented a similar distribution in the contribution by component to the exergy destruction in the system, although the difference between TVC and the effects does not seem to be so pronounced. In other studies such as [36,69], the TVC source has consistently been identified as the main contributor for exergy destruction. However, in [36], the effects slightly surpassed the TVC contribution for exergy destruction.…”

Section: Brine Pump <1%mentioning

confidence: 72%

Definition of Exergetic Efficiency in the Main and Emerging Thermal Desalination Technologies: A Proposal

Arakcheeva El Kori,

Blanco-Marigorta,

Melián Martel

2024

Water

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Increasing attention is being given to reduce the specific energy consumption in desalination processes, which translates into greater use of exergy analysis. An exergetic analysis provides relevant information related to the influence of the efficiency of a single component in the global plant performance and in the exergy cost of the product. Therefore, an exergy analysis identifies the main improvement potentials in a productive thermodynamic process. Related to desalination technologies, many previous papers deal with the calculation of the parameters involved in the exergy analysis, the exergetic efficiency of different processes, plants, and technologies among them. However, different approaches for formulating the exergetic efficiency have been suggested in the literature, often without sufficient understanding and consistency. In this work, these formulations, applied to the main desalination components and processes, are compared and critically reviewed. Two definitions of exergy efficiency are applied to the desalination components of the three main thermal desalination processes (multieffect distillation–thermal vapour compression, multistage flash distillation, and direct-contact membrane distillation). The results obtained for the exergy efficiency of the MED-TVC, MSF, and DCMD processes for the input–output approach are 21.35%, 17.08%, and 1.28%, respectively, compared to the consumed–produced approach that presented 3.1%, 1.58%, and 0.37%, respectively. The consumed–produced approach seems to better fit the thermodynamic behaviour of thermal desalination systems.

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“…It was first developed from direct contact membrane distillation (DCMD) based on a liquid and air‐gap hydrophobic membrane system. [ 16 , 17 , 18 ] The PRMD can produce water and power simultaneously. [ 16 , 17 , 19 ] However, the TOEC can only generate electricity because the TOEC is a completely closed system, and the permeate stream is mixed with the feed stream to make the power generation cycle.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Thermo‐Osmotic Low‐Grade Heat Recovery by Applying a Negative Pressure to the Feed

Zhang

et al. 2023

Global Challenges

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Thermal-exergy efficiency trade-off optimization of pressure retarded membrane distillation based on TOPSIS model

Cited by 12 publications

References 52 publications

Thermodynamics Analysis of a Membrane Distillation Crystallization Ion Recovery System for Hydroponic Greenhouses Assisted with Renewable Energy

Thermodynamics Analysis of a Membrane Distillation Crystallization Ion Recovery System for Hydroponic Greenhouses Assisted with Renewable Energy

Definition of Exergetic Efficiency in the Main and Emerging Thermal Desalination Technologies: A Proposal

Enhancing Thermo‐Osmotic Low‐Grade Heat Recovery by Applying a Negative Pressure to the Feed

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