Analysis of a mechanical vapor recompression wastewater distillation system

Zhou, Yasu; Cheng-jun, Shi; Dong, Guoqiang

doi:10.1016/j.desal.2014.09.013

Cited by 78 publications

(13 citation statements)

References 21 publications

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“…The plate heat exchanger offers many benefits including narrow temperature control (ΔT ≤ 5°C), easy maintenance and cleaning, margin to accommodate different loads, and high operational reliability [7]. Furthermore, it is significant to indicate that PHXs as preheaters have rarely been examined in thermal-based desalination units from an optimized cost design and analysis viewpoint [8]. Rather, the conducted studies either are restricted to preliminary sizing [9] or heat exchanger design is missing [10].…”

Section: Introductionmentioning

confidence: 99%

Exergoeconomic and Normalized Sensitivity Analysis of Plate Heat Exchangers: A Theoretical Framework with Application

Jamil¹,

Goraya²,

Yaqoob³

et al. 2022

Heat Exchangers

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Heat exchangers are the mainstay of thermal systems and have been extensively used in desalination systems, heating, cooling units, power plants, and energy recovery systems. This chapter demonstrates a robust theoretical framework for heat exchangers investigation based on two advanced tools, i.e., exergoeconomic analysis and Normalized Sensitivity Analysis. The former is applied as a mutual application of economic and thermodynamic analyses, which is much more impactful than the conventional thermodynamic and economic analyses. This is because it allows the investigation of combinatory effects of thermodynamic and fiscal parameters which are not achieved with the conventional methods. Similarly, the Normalized Sensitivity Analysis allows a one-on-one comparison of the sensitivity of output parameters to the input parameters with entirely different magnitudes on a common platform. This rationale comparison is obtained by normalizing the sensitivity coefficients by their nominal values, which is not possible with the conventional sensitivity analyses. An experimentally validated example of a plate heat exchanger is used to demonstrate the application of the proposed framework from a desalination system.

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Section: Introductionmentioning

confidence: 99%

Exergoeconomic and Normalized Sensitivity Analysis of Plate Heat Exchangers: A Theoretical Framework with Application

Jamil¹,

Goraya²,

Yaqoob³

et al. 2022

Heat Exchangers

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“…[ 16 ] Furthermore, with the increasing salinity of feedwater, the operating pressure and the energy consumption of the RO system increase significantly. [ 17 ] Meanwhile, thermal evaporative crystallization, such as mechanical vapor recompression (MVR) technology, [ 18,19 ] is a complex mechanical system that requires high‐grade heat and electricity, [ 20 ] resulting in large energy consumption and capital costs.…”

Section: Introductionmentioning

confidence: 99%

Anisotropic Evaporator with a T‐Shape Design for High‐Performance Solar‐Driven Zero‐Liquid Discharge

Jin

Duan

et al. 2021

Small

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Solar‐driven evaporation is regarded as a sustainable wastewater treatment strategy for clean water recovery and salt condensation. However, achieving both high evaporation rate and long‐term stability remain challenging due to poor thermal management and rapid salt accumulation and blocking. Here, a T‐shape solar‐driven evaporator, composed of a surface‐carbonized longitudinal wood membrane (C‐L‐wood) is demonstrated as the top “” for solar harvesting/vapor generation/salt collection and another piece of natural L‐wood as the support “” for brine transporting and thermally insulating. The horizontally aligned micro‐channels of C‐L‐wood have a low perpendicular thermal conductivity and can effectively localize the thermal energy for rapid evaporation. Meanwhile, the brine is guided to transport from the support L‐wood (“”) to the centerline of the top evaporator and then toward the double edge (“”), during which clean water is evaporated and salt is crystallized at the edge. The T‐shape evaporator demonstrates a high evaporation rate of 2.43 kg m−2 h−1 under 1 sun irradiation, and is stable for 7 days of the outdoor operation, which simultaneously realizes clean water evaporation and salt collection (including Cu2+, CrO42−, Co2+), and achieves zero‐liquid discharge. Therefore, the T‐shape design provides an effective strategy for high performance wastewater treatment.

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“…Numerous research studies on the MVR system have been conducted; some of them are mainly about parameter optimization through theoretical calculation. For instance, Hikmet, Hisham, and Zhou calculated some important operation data for the typical MVR systems through parametric research. Also, the multilevel MVR system has been investigated by some researchers, like Dong Han and Lin Liang et al who evaluated the energy efficiency of multistage MVR systems.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic analysis of a mechanical vapor recompression evaporation system coupled with crystalization for salt separation

Kang

Jin

Xiao

2018

Asia-Pacific J Chem Eng

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Currently, the mechanical vapor recompression (MVR) system is extensively used for single salt separation, but the relevant research on mixed salt system treatment is still in initial stage. As a very common salt solution system, sodium chloride–potassium chloride–water system can be readily found in many processes. It is no doubt of great significance to separate their crystals from the mixed solution in an efficient and environmentally friendly way. Therefore, with the aid of Aspen Plus software, this study aims to design an MVR evaporation system capable of treating sodium chloride–potassium chloride–water system. Subsequently, the analysis about the start‐up schemes and some influencing factors in the steady‐state operation are carried out, so as to provide some guidance and reference for the future technical route to separate mixed salt system with low energy consumption.

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Analysis of a mechanical vapor recompression wastewater distillation system

Cited by 78 publications

References 21 publications

Exergoeconomic and Normalized Sensitivity Analysis of Plate Heat Exchangers: A Theoretical Framework with Application

Exergoeconomic and Normalized Sensitivity Analysis of Plate Heat Exchangers: A Theoretical Framework with Application

Anisotropic Evaporator with a T‐Shape Design for High‐Performance Solar‐Driven Zero‐Liquid Discharge

Thermodynamic analysis of a mechanical vapor recompression evaporation system coupled with crystalization for salt separation

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