Novel experimental methodology for the characterization of thermodynamic performance of advanced working pairs for adsorptive heat transformers

Frazzica, Andrea; Aristov, Yu. I.; Freni, Angelo

doi:10.1016/j.applthermaleng.2014.07.005

Cited by 36 publications

(14 citation statements)

References 19 publications

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“…Goldsworthy [17] has recently compared different kind of AQSOA zeolites for modelling of adsorption chillers and desiccant wheels. Frazzica [18] adopted a new experimental protocol to evaluate thermodynamic performance of AQSOA-Z02 as a desiccant for advanced working pair in adsorptive heat transformers. Dawoud [19] provided an insight into water vapour adsorption kinetics on small AQSOA-Z02-coated aluminium substrates for adsorption heat exchangers.…”

Section: Introductionmentioning

confidence: 99%

Experimental analysis and numerical modelling of an AQSOA zeolite desiccant wheel

Intini

Goldsworthy

White

et al. 2015

Applied Thermal Engineering

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Section: Introductionmentioning

confidence: 99%

Experimental analysis and numerical modelling of an AQSOA zeolite desiccant wheel

Intini

Goldsworthy

White

et al. 2015

Applied Thermal Engineering

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“…The experimental thermogravimetric apparatus, available at the CNR‐ITAE laboratory and used for the evaluation of the isobars, is a standard Labsys‐Evo, produced by Setaram, which was modified to operate under pure water vapor atmosphere …”

Section: Definition Of a Protocol For The Characterization Of Hydrothmentioning

confidence: 99%

“…The proposed hydrothermal stability characterization protocol was then applied to a commercial adsorbent material, recently developed for adsorption heat transformations, named AQSOA Z02, produced by Mitsubishi Plastic Inc . It belongs to the class of silico‐alumino‐phosphates (SAPOs).…”

Section: Case Study: Aqsoa Z02mentioning

confidence: 99%

Verification of hydrothermal stability of adsorbent materials for thermal energy storage

Frazzica

Brancato

2018

Int J Energy Res

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Summary This paper presents an experimental protocol for the cycling stability of adsorbent materials for thermal energy storage (TES) applications under hydrothermal conditions. Two different aging conditions were identified, namely, cycle and shelf test. The former one mimicking the cycling between desorption and adsorption conditions, while the latter one keeping a constant temperature for long time under constant water vapor pressure. A flexible experimental setup was then designed and realized to contemporarily perform both aging condition under selectable operating conditions. The protocol defines different characterization methods to compare the fresh and the aged samples. The measurement of the water vapor adsorption equilibrium isobars represents the main parameter to directly highlight possible degradation phenomena. Subsequently, X‐ray diffraction patterns (XRD), nitrogen physisorption, and scanning electron microscopy coupled to energy dispersive x‐ray (SEM–EDX), are used to evaluate structural, textural, morphological, and elemental composition variation that can help in identifying the causes of possible degradation. The proposed protocol was employed to validate the stability of a commercial adsorbent, AQSOA Z02, that proved a quite stable behavior both under cycle and shelf investigated conditions.

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“…(1) and (2) take into account only the latent heat of material. A useful method of experimental evaluation of both latent and sensible heat was suggested in [41] and then used in [35] and [43]. The sensible heat was found to be 4-7 % of the latent one (in the temperature range 50-200°C) and can be used either for immediate consumption (e.g.…”

Section: Adsorptive Inter-seasonal Heat Storagementioning

confidence: 99%

Current progress in adsorption technologies for low-energy buildings

Aristov

2015

Future Cities and Environment

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More than half of the world's population currently lives in cities. An essential constituent of future sustainable cities is energy efficient and ecologically sound buildings which ensure high levels of comfort and convenience without reducing the standards of living. At present, a significant part of primary fossil fuels is spent for heating/cooling of buildings, thus, greatly contributing to total GHG emissions. In this paper, typical heat losses in dwellings are considered taking the United Kingdom and the Russian Federation as examples. The role of adsorption-based technologies for more rational use of heat in buildings is discussed. Fundamentals of inter-seasonal adsorptive heat storage (AHS) are briefly considered. A tentative upper limit of the AHS storage density is estimated. Current practice of inter-seasonal AHS and novel smart adsorbents promising for this emerging technology are overviewed. Since a portion of the heat losses in ventilation system significantly increases in modern buildings, a new approach to regenerating heat and moisture in this system is discussed. Finally, optimization trends of the AHS in buildings are briefly considered.

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Novel experimental methodology for the characterization of thermodynamic performance of advanced working pairs for adsorptive heat transformers

Cited by 36 publications

References 19 publications

Experimental analysis and numerical modelling of an AQSOA zeolite desiccant wheel

Experimental analysis and numerical modelling of an AQSOA zeolite desiccant wheel

Verification of hydrothermal stability of adsorbent materials for thermal energy storage

Current progress in adsorption technologies for low-energy buildings

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