Analysis and Experimental Study of the Transformation of a Non-Isothermal Solid/Gas Reacting Medium

Mazet, Nathalie; Amouroux, M.; Spinner, B.

doi:10.1080/00986449108911585

Cited by 87 publications

(45 citation statements)

References 3 publications

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“…7 shows typical examples of the absorption/ desorption rates at various pressure. Mazet et al has reported the great dependence of reaction rate against the pressure as to manganese chloride [6]. Also, absorption was significantly slow for the small pressure difference at the initial stage.…”

Section: Resultsmentioning

confidence: 99%

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Reaction kinetics of ammonia absorption/desorption of metal salts

Iwata

Yamauchi

Hirota

et al. 2014

Applied Thermal Engineering

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Section: Resultsmentioning

confidence: 99%

“…The semi-empirical kinetic model proposed by Mazet et al [6] for absorption/desorption rate as a function of the molar ratio x, P and T was adopted here:…”

Section: Reaction Kineticsmentioning

confidence: 99%

Reaction kinetics of ammonia absorption/desorption of metal salts

Iwata

Yamauchi

Hirota

et al. 2014

Applied Thermal Engineering

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“…As shown in Eqs. 5 and 6, the salt temperature T s and the gas pressure P were related to the reac- [13][14][15][16] and that of MnCl 2 Á2/6NH 3 has been concluded in Han et al 16 In this article, the reaction rates for the reactions of CaCl 2 Á2/4NH 3 and CaCl 2 Á4/8NH 3 were measured with the experimental set-up. 17 The reaction rate equations are fitted in the form of Eq.…”

Section: Numerical Modelmentioning

confidence: 96%

Investigation of solid–gas reaction heat transformer system with the consideration of multistep reactions

2008

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in Wiley InterScience (www.interscience.wiley.com).The performance of solid-gas reaction heat transformer system using MnCl 2 and CaCl 2 was investigated with the consideration of multistep reactions between CaCl 2 and NH 3 . The reactions between CaCl 2 and NH 3 could be CaCl 2 Á2/4NH 3 and CaCl 2 Á4/ 8NH 3 . The simulated results were verified by the experimental data. From the analysis results, it was concluded that the two reactions between CaCl 2 and NH 3 existed simultaneously. The favored conditions for the simultaneous occurrence of multistep reactions were discussed. The main reaction in the system with the initial state of CaCl 2 Á2NH 3 and CaCl 2 Á4NH 3 were designated as the reaction of CaCl 2 Á2/4NH 3 and CaCl 2 Á4/8NH 3 , respectively. It was concluded that high driving temperature T M , large relative gas volume, and large specific heat transfer area were the favored conditions for the simultaneous occurrence of multistep reactions in the systems both with the initial state of CaCl 2 Á2NH 3 and CaCl 2 Á4NH 3 . High initial charging pressure P 0 was favored for the system with the initial state of CaCl 2 Á2NH 3 , while low P 0 was favored for the system with the initial state of CaCl 2 Á4NH 3 . The impacts of the simultaneous occurrence of multistep reactions on the system performance indicators [temperature lift, specific power, and system coefficient of performance (COP)] were also investigated in this article. It was concluded that the occurrence of the reaction of CaCl 2 Á4/ 8NH 3 for the initial state of CaCl 2 Á2NH 3 led to better system performance, i.e., larger temperature lift, larger specific power, and larger system COP. However, the occurrence of the reaction of CaCl 2 Á2/4NH 3 for the initial state of CaCl 2 Á4NH 3 would lead to lower specific power. The temperature lift and system COP were larger for the initial state of CaCl 2 Á4NH 3 ; while the cycle period was shorter for the initial state of CaCl 2 Á2NH 3 .

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“…Typically, these models lack spatial resolution assuming the reactor or entire system components as homogeneous control volumes with an internally uniform state and allow the study of optimal control, predimensioning or sizing of a complete unit including exergetic considerations, e.g., [4,11,20,21,27,31,[37][38][39][40][41][42][43][44][45][46][47][48][49]. Such models are computationally cheap and allow a rough dimensioning of reactors or the simulation of their behaviour as part of larger systems, but lack the features required for a detailed modelling of processes occurring inside the reactor, for capturing heterogeneities within the reactive bed, or for detailed reactor design.…”

Section: Lumped-parameter and Spatially Resolved Modelsmentioning

confidence: 99%