Thermal performance of multi-stage flash distillation plants in Saudi Arabia

Hamed, Osman A.; Al-Sofi, Mohammad A.K.; Imam, M.H. Toufiq; Mustafa, Ghulam M.; Mardouf, Khalid Ba; Al-Washmi, Hamad

doi:10.1016/s0011-9164(00)00043-6

Cited by 68 publications

(30 citation statements)

References 14 publications

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“…MSF plants in the Kingdom of Saudi Arabia typically have TBT between 90 o C and 115 o C and performance ratio (PR) between 6.5 and 9.5 [12], [13]. The reduction of scaling ions would allow a higher TBT and hence an increase of the flashing range and PR in MSF.…”

Section: Introductionmentioning

confidence: 99%

The effect of increased top brine temperature on the performance and design of OT-MSF using a case study

et al. 2017

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A mathematical model of a Once-Through Multi-Stage-Flash (OT-MSF) desalination system is developed. This study shows the impact of top brine temperature (TBT) of up to 160 o C on both the design and performance characteristics of MSF systems. Such a high TBT can be achieved by nanofiltration pretreatment to remove scale-forming compounds. System performance is evaluated by the thermal performance ratio (PR) and the required specific area (sA).

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Section: Introductionmentioning

confidence: 99%

The effect of increased top brine temperature on the performance and design of OT-MSF using a case study

et al. 2017

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“…A system that boils water without energy regeneration will have GOR close to 1 (neglecting heat loss to the environment). Current MD systems typically have low GOR, whereas large scale thermal systems such as MSF might have GOR of 9.5 [29]. In this paper, we show that the GOR of the MSVMD system can exceed 7 for seawater desalination.…”

Section: Performance Metricsmentioning

confidence: 75%

Multistage vacuum membrane distillation (MSVMD) systems for high salinity applications

Chung

Swaminathan

Warsinger

et al. 2016

Journal of Membrane Science

100

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Multistage membrane distillation (MD) systems can have significantly higher efficiencies than their single stage counterparts. However, multistage MD system design has received limited attention. In this paper, the performance of a multistage vacuum membrane distillation (MSVMD) which is thermodynamically similar to a multi-stage flash distillation (MSF) is evaluated for desalination, brine concentration, and produced water reclamation applications. A wide range of solution concentrations were accurately modeled by implementing Pitzer's equations for NaCl-solution properties. The viability of MSVMD use for zero liquid discharge (ZLD) applications is investigated, by considering discharge salinities close to NaCl saturation conditions. Energy efficiency (gained output ratio or GOR), second law efficiency, and the specific membrane area were used to quantify the performance of the system. At high salinities, the increased boiling point elevation of the feed stream resulted in lower fluxes, larger heating requirements and lower GOR values. The second law efficiency, however, is higher under these conditions since the least heat for separation increases faster than the system's specific energy consumption with increase in salinity. Under high salinity conditions, the relative significance of irreversible losses is lower. Results indicate that MSVMD systems can be as efficient as a conventional MSF system, while using reasonable membrane areas and for a wide range of feed salinities. Given MD's advantages over MSF such as lower capital requirement and scalability, MSVMD can be an attractive alternative to conventional thermal desalination systems.Keywords: GOR; second law efficiency; VMD; high salinity; multistage; ZLD; produced water * Corresponding author: lienhard@mit.edu * * Citation: H.W. Chung, J. Swaminathan, D.M. Warsinger and J.H. Lienhard V. "Multistage vacuum membrane distillation (MSVMD) systems for high salinity applications," J. Membrane Sci.,497:128-141, 1 Jan. 2016.

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“…It is used in desalination plants to prevent or retard the precipitation of hard alkaline scale forming salts on the heat transfer surfaces [13]. Belgard EV2030 is effective in controlling scale formation at high temperatures [14][15][16].…”

Section: Belgard Ev2030 Experimentsmentioning

confidence: 99%

Effect of antiscalants for inhibition of calcium sulfate deposition in thermal desalination systems

Al-Mutairi

Aleem

Al-Ahmad

2009

Desalination and Water Treatment

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Thermal performance of multi-stage flash distillation plants in Saudi Arabia

Cited by 68 publications

References 14 publications

The effect of increased top brine temperature on the performance and design of OT-MSF using a case study

The effect of increased top brine temperature on the performance and design of OT-MSF using a case study

Multistage vacuum membrane distillation (MSVMD) systems for high salinity applications

Effect of antiscalants for inhibition of calcium sulfate deposition in thermal desalination systems

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