Fabrication of polymer film heat transfer elements for energy efficient multi-effect distillation

Scheffler, T.B.; Leão, António José

doi:10.1016/j.desal.2007.02.076

Cited by 23 publications

(9 citation statements)

References 3 publications

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“…The heat transfer simulations were also presented in this paper, and a good agreement between theoretical and experimental data was achieved. Figure 18 Exploded assembly drawing of the falling film plate heat exchanger with PEEK film heat transfer surfaces and spacers 70 A similar multi-effect distillation system was designed and fabricated by Scheffler and Leao 72 . Polyolefins such as high density polyethylene (HDPE) and PP were chosen because of their high heat transfer performance and low cost.…”

Section: Water Desalination/distillation Applicationmentioning

confidence: 99%

Recent research developments in polymer heat exchangers – A review

Chen

Reay³

et al. 2016

Renewable and Sustainable Energy Reviews

174

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Due to their low cost, light weight and corrosive resistant features, polymer heat exchangers have been intensively studied by researchers with the aim to replace metallic heat exchangers in a wide range of applications. This paper reviews the development of polymer heat exchangers in the last decade, including cutting edge materials characteristics, heat transfer enhancement methods of polymer materials and a wide range of polymer heat exchanger applications. Theoretical modelling and experimental testing results have been reviewed and compared with literature. A recent development, the polymer micro-hollow fibre heat exchanger, is introduced and described. It is shown that polymer materials do hold promise for use in the construction of heat exchangers in many applications, but that a considerable amount of research is still required into material properties, thermal performance and life-time behaviour.

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Section: Water Desalination/distillation Applicationmentioning

confidence: 99%

Recent research developments in polymer heat exchangers – A review

Chen

Reay³

et al. 2016

Renewable and Sustainable Energy Reviews

174

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“…Taking the actual conditions into account, the processes with spray density of evaporation tube in the range of 0.03-0.08 kg/(m·s) are selected as feasibility ones. The selected parameters of system performance are GOR (the ratio of the distillate output and the steam supplied to the desalting system) and the total area of evaporators which both are the most important factors of the total cost of water [6,7].…”

Section: Resultsmentioning

confidence: 99%

Comparative Study on Parallel Feed and Mixed Feed LT-MED Desalination Systems

Liu

Shen

et al. 2011

2011 Asia-Pacific Power and Energy Engineering Conference

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Based on the mass and energy conservation equations, the mathematical models of a parallel feed and a mixed feed LT-MED desalination system were established, in which included evaporator, condenser, preheater, brine cooler etc. The steam temperature loss was considered which was caused by the boiling point elevation (BPE) of sea water and the flow resistance when steam flowing through tube bundle, demister and pipeline between adjacent effects. And the physical parameters of sea water were considered as the function of temperature and concentration. A computer program was designed to solve the models. Taking actual project into account, comparative study on parallel feed and mixed feed LT-MED desalination systems was done under different factors impacting on the system performance, which included the number of evaporators, the heating steam temperature of the first effect and the rated water production. The results show that when the other factors are unchanged, the more the number of evaporators, the better the performance of mixed feed system compared to the parallel feed system. The impact of the heating steam temperature of the first effect on the performance difference of the two systems is very little. The less the rated water production, the better the performance of mixed feed system compared to the parallel feed system.

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“…Conductive polymer composites (PC) are utilized in many applications such as heat exchangers because they can offer relatively moderate thermal conductivity in addition to the advantages of light weight, corrosion resistance and low cost. These advantages result in a convenient choice for water desalination and electronic cooling applications [1], [2]. The performance of heat exchangers can be enhanced by increasing the thermal conductivity of the material, adding convective surface area, or increasing the convective heat transfer coefficient through shape complexity and turbulent generators.…”

Section: Background and Literaturementioning

confidence: 99%

Continuous Fiber Polymer Composites for Thermal Applications

El-Sayed¹,

Elkholy²,

Melenka³

et al. 2018

Progress in Canadian Mechanical Engineering

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This paper presents an analytical investigation into the effective thermal conductivity of 3D printed continuous fibre polymer composites (CFPCs) using rule of mixture micro-structural analysis. Two fused deposition modelling techniques were utilized using a off-the-shelf printer and a low-cost modified printer. Results demonstrate significant improvement in the effective thermal conductivity of the composite compared to the base polymer. One samples was experimentally tested to examine the veracity of the model predictions.

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Fabrication of polymer film heat transfer elements for energy efficient multi-effect distillation

Cited by 23 publications

References 3 publications

Recent research developments in polymer heat exchangers – A review

Recent research developments in polymer heat exchangers – A review

Comparative Study on Parallel Feed and Mixed Feed LT-MED Desalination Systems

Continuous Fiber Polymer Composites for Thermal Applications

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