Thermo-physical properties measurements of hygroscopic and reactive material (zeolite 13X) for open adsorptive heat storage operation

Scuiller, Elliot; Dutournié, Patrick; Zbair, Mohamed; Bennici, Simona

doi:10.1007/s10973-022-11439-9

Cited by 4 publications

(2 citation statements)

References 39 publications

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“…Previously, several experiments were performed for estimating the thermophysical properties of zeolite 13X without operating this correction, resulting in a significant margin of error. 13 The term related to the adsorption/desorption (correction term) is shown in Figure 2b, blue line. It is calculated based on the enthalpy of adsorption (ΔH 2 ) and the variation of the sample mass.…”

Section: Methodsmentioning

confidence: 99%

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New Approach for Measuring the Specific Heat Capacity of Reactive Adsorbents Using Calorimetry

et al. 2023

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The specific heat capacity (Cp) of zeolite 4A and zeolite 13X was measured using a new methodology performed on a thermogravimetry and differential scanning calorimetry (DSC) coupled device. Experiments were performed at various water contents in the temperature range from [343 to 363 K] and at atmospheric pressure. The experimental procedure is based on a "classic" temperature ramp. The experimental improvement is based on the control of the water content in the sample during the acquisition by adjusting the atmospheric humidity of the gas flow. The new methodology implies the correction of the DSC signal by subtracting the contribution of the reaction heat for the calculation of the Cp. A linear relationship is used to model the Cp as a function of water content. For a water content ranging from 0 to 0.20 kg•kg −1 , the Cp value was in the [897 to 1542 J•kg −1 •K −1 ] range for zeolite 4A and in the [943 to 1344 J•kg −1 •K −1 ] range for the zeolite 13X. These results show that the Cp values of the dry materials are approximately the same, unlike those of the adsorbed water (4120 and 2948 J•kg −1 •K −1 , respectively).

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Section: Methodsmentioning

confidence: 99%

“…Despite the control of the material hydration rate (water uptake), a slight variation was observed and required a correction of the energy balance. Previously, several experiments were performed for estimating the thermophysical properties of zeolite 13X without operating this correction, resulting in a significant margin of error …”

Section: Methodsmentioning

confidence: 99%