Recent developments in solid desiccant coated heat exchangers – A review

Vivekh, P.; Kumja, M.; Bui, Tammy; Chua, Kian Jon

doi:10.1016/j.apenergy.2018.08.041

Cited by 167 publications

(57 citation statements)

References 91 publications

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“…The water uptake, hydrophilicity, and desorption hysteresis of the used materials directly determine the available driving temperatures, relative working pressure, price and efficiency of the heat transformation. Silica gel, zeolites and composite superabsorbent polymers [5][6][7][8][9][10] have been widely used for adsorption-based heat pumps and chillers. However, some drawbacks of these adsorbents have been identied, such as an insufficient adsorption capacity at a low relative pressure and/or a high regeneration temperature.…”

Section: Introductionmentioning

confidence: 99%

Screening of metal–organic frameworks for water adsorption heat transformation using structure–property relationships

Liu

Huai

et al. 2020

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Screening of metal–organic frameworks for water adsorption heat transformation using structure–property relationships

Liu

Huai

et al. 2020

RSC Adv.

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“…2018 [26] Activated alumina preparation and characterisation: The review on recent advancement Activated alumina particles (AAP), synthesised electrochemically from aluminium, are an inexpensive material that can be used for water filtration due to its active surface.…”

Section: Progressive Development In Solid Desiccant Cooling: a Reviewmentioning

confidence: 99%

“…The aim of this review was to clarify the role of aluminium oxide and nano aluminium oxide in removing some chemicals contaminants that influence human health, such as dyes, antibiotics and heavy metals. 2020 [29] In the last few years, a number of reviews have been published, in which aluminium oxide has been used as a desiccant in desiccant coated heat exchangers [25] and in desiccant cooling systems [26], as well as for water purification [27][28][29] from different organic and inorganic contaminants (see references with their corresponding scope, given in Table 1).…”

Section: Progressive Development In Solid Desiccant Cooling: a Reviewmentioning

confidence: 99%

Efficient Adsorbent-Desiccant Based on Aluminium Oxide

et al. 2021

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The review describes the main methods of obtaining hydroxides and aluminium oxides (AO) of various structures from gibbsite. The promising techniques of obtaining AO adsorbents are discussed, namely the technique of thermal activation in the mode of pneumatic transport with gibbsite by heated air (TCA Gb) and the technique of thermal activation of gibbsite in centrifugal flash reactors (CTA Gb). The main methods of improving the adsorbent properties of AO, such as the optimisation of texture characteristics and phase composition, as well as the influence of the modification of aluminium oxide adsorbents, obtained using CTA and TCA technologies with cations of alkaline metals, are considered. It is shown that the modification allows a controlled variation of the characteristics of donor and acceptor active sites on the surface of adsorbents and, thus, a substantial increase in their adsorption activity, in particular, with respect to water vapour.

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“…Alumina (Al 2 O 3 ) and its partial hydrates prove to be extremely valuable materials in many practical applications, usually as desiccants [1][2][3], fillers [4][5][6], adsorbents [7][8][9][10] for the removal of oil and grease from industrial waters [11], organic powder coatings [12][13][14], porous ceramics [15][16][17], high-temperature ceramic oxides [18][19][20], ceramic filtration membranes [21][22][23][24], and catalysts [25][26][27][28][29], only if the precursors are properly prepared and thermally treated [30][31][32]. Among the desired properties for these applications are a specific pore size and pore size distribution [33,34], a high specific surface area [35][36][37], and the degree of crystallinity, which also plays an essential role [38][39][40][41].…”

Section: Introductionmentioning

confidence: 99%

Thermally Activated Al(OH)3 Part II—Effect of Different Thermal Treatments

Vasile

Dobra²,

Iliev

et al. 2021

Ceramics

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In this paper, the thermal decomposition of crystalline Al(OH)3 was studied over the temperature range of 260–400 °C for particles with a size between 10 and 150 µm. The weight losses and thermal effects occurring in each of the dehydration process were assessed using thermogravimetry (TG) and differential scanning calorimetry (DSC) thermal analysis. X-ray diffraction (XRD) patterns, refined by the Rietveld method, were used for mineral phase identification, phase composition analysis, and crystallinity degree determination. Moreover, the particle size distributions and their corresponding D10, D50, and D90 numeric values were determined with a laser analyzer. We observed a strong relationship between the calcination temperature, the initial gibbsite grade particle size, and the crystallinity of the resulting powders. Hence, for all endothermic effects identified by DSC, the associated temperature values significantly decreased insofar as the particle dimensions decreased. When the gibbsite was calcined at a low temperature, we identified small amounts of boehmite phase along with amorphous new phases and unconverted gibbsite, while the powders calcined at 400 °C gradually yielded a mixture of boehmite and crystalized γ-Al2O3. The crystallinity % of all phase transition products declined with the increase in particle size or temperature for all the samples.

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Recent developments in solid desiccant coated heat exchangers – A review

Cited by 167 publications

References 91 publications

Screening of metal–organic frameworks for water adsorption heat transformation using structure–property relationships

Screening of metal–organic frameworks for water adsorption heat transformation using structure–property relationships

Efficient Adsorbent-Desiccant Based on Aluminium Oxide

Thermally Activated Al(OH)3 Part II—Effect of Different Thermal Treatments

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