Simple wave equations of one-dimensional motion of a gas-dust mixture

Zholobov, Vladimir V.; Zholobova, L. G.

doi:10.1007/bf00850815

Cited by 3 publications

(4 citation statements)

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“…An analytical solution to this type of problem was attempted by Wilson et al in the case of O 2 VSA, with an approach similar to that by LeVan, by assuming the adsorption front as a shock wave and the desorption front as a simple wave . In that work, the velocity of the water front was characterized by a mass balance

\frac{d z}{d t} = \frac{v}{ε_{t} true(1 + \frac{ρ_{b} R T}{ε_{t}} \frac{d N_{normalw}}{d P_{normalw}} true)}

…”

Section: Resultsmentioning

confidence: 99%

“…An analytical solution to this type of problem was attempted by Wilson et al 41 in the case of O 2 VSA, with an approach similar to that by LeVan, 40 by assuming the adsorption front as a shock wave and the desorption front as a simple wave. 47 In that work, the velocity of the water front was characterized by a mass balance To locate the water loading profile at the end of the evacuation (and/or purge) step, an estimated length of water loaded zone is required and the solution to Eq. 4 is necessary.…”

Section: Determination Of Water Loaded Zonementioning

confidence: 99%

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The role of water on postcombustion CO₂ capture by vacuum swing adsorption: Bed layering and purge to feed ratio

Xiao

Zhang

et al. 2013

AIChE Journal

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The influence of water vapor on the adsorption of CO 2 in carbon capture by vacuum swing adsorption (VSA) was described. VSA experiments with single and multilayered columns using alumina and zeolite 13X were conducted to understand the migration of water. The penetration depth of water in the column could be controlled by maintaining the purge-to-feed ratio above a critical value. At high water content in the feed (>4%), employment of a water adsorbing prelayer was essential to prevent failure of the carbon capture process. A simple axial working capacity model predicts the penetration depth of water in the column for a given feed temperature and adsorption isotherm, and the layering ratio can be selected accordingly. Although water is detrimental to CO 2 capture with polar adsorbents, long-term recovery of CO 2 is still possible by appropriate layering and ensuring an adequate purge-to-feed ratio.Note: vacuum level decreases in the order of Run 5,7,8,9, and 10. (b) Dependence of CO 2 productivity, purity, and recovery on volumetric purge-to-feed ratio at CSS of single-layer 13X VSA processes with 3.5% water feed at 30 C. [Color figure can be viewed in the online issue, which is available at wileyonlinelibrary.com.] 678

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\frac{d z}{d t} = \frac{v}{ε_{t} true(1 + \frac{ρ_{b} R T}{ε_{t}} \frac{d N_{normalw}}{d P_{normalw}} true)}

…”

Section: Resultsmentioning

confidence: 99%

Section: Determination Of Water Loaded Zonementioning

confidence: 99%

The role of water on postcombustion CO₂ capture by vacuum swing adsorption: Bed layering and purge to feed ratio

Xiao

Zhang

et al. 2013

AIChE Journal

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“…Наиболее распространенными и, при этом, наиболее проблемными конструктивными элементами здания на являются плоские рулонные кровли, характеризующиеся большим разнообразием типов конструкций и составляющих их материалов [2]. Каждый тип плоской рулонной кровли имеет свои особенные дефекты, отличные от остальных, что требует от строительного эксперта наличия специфических знаний об особенностях её эксплуатации и ремонта [3].…”

Section: повышение качества управления жизненным циклом плоских рулон...unclassified

Flat Roll Roofs Life Cycle Management Improving With Advanced Technical State Inspection

Dolzhenko,

Naumov,

Shchenyatsky

2023

Bulletin of Belgorod State Technological University Named After. V. G. Shukhov

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The quality of life cycle management of flat rolled roofs depends on the effectiveness of the technology for assessing their physical deterioration, the value of which is significantly affected by the operating conditions of roofs and sources of impacts. Flat rolled roofs are the most common technical solutions in the real estate and are very defect-intensive building systems, the physical deterioration of which affects the structural safety and functional reliability not only of them, but of the entire building as a whole. Defects in flat rolled roofs, as well as defects in building structures in general, are in close organizational and technological relationship, in which the life cycle of an individual defect can be a synergistic multiplication or subtraction in defects life cycle parameters. The key flaw of modern methods for assessing physical deterioration are the initial and predominantly manual instrumental studies, in connection with which the methods are overly simplified, templated, subjective in natural assessment of life cycle resource intensity. In this regard, it seems promising targeted research related to the comprehensive improvement for construction and technical flaw detection methods, both in software improving that increases the reliability and quality of the factual result, and algorithms for predictive estimation of individual defects and building systems life cycles. That manages life cycle more effectively in the media of practical methods for dynamic defects analyzing and assessing the technical condition of structures in general. The paper presents mainline in improving of method for assessing the physical deterioration of flat rolled roofs, quantitatively taking into account the combined impact of defects on building system technical condition at its life cycle, significant expanding the operational tools for building technical management.

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“…Unfortunately, this dependence does not allow taking into account most of the known methods for assessment of the effectiveness of building technologies [7][8][9], and the few of these methods that have such a possibility are not universal and can be used to assess of only certain types of technologies [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Priority local criteria for choosing of building technology

Жолобова

2018

MATEC Web Conf.

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The article contains some suggestions on the formation of sets of local criteria for the selection of optimal building technologies. Tables of priority local criteria universal for all building technologies are provided. Interest of the construction participants in use of these criteria is proved. Application of priority local criteria will allow to exclude expenses of time for their analysis and to avoid mistakes at their choice and also to provide possibility of automation of the choice of optimum building technologies.

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Simple wave equations of one-dimensional motion of a gas-dust mixture

Cited by 3 publications

References 3 publications

The role of water on postcombustion CO₂ capture by vacuum swing adsorption: Bed layering and purge to feed ratio

The role of water on postcombustion CO₂ capture by vacuum swing adsorption: Bed layering and purge to feed ratio

Flat Roll Roofs Life Cycle Management Improving With Advanced Technical State Inspection

Priority local criteria for choosing of building technology

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Simple wave equations of one-dimensional motion of a gas-dust mixture

Cited by 3 publications

References 3 publications

The role of water on postcombustion CO2 capture by vacuum swing adsorption: Bed layering and purge to feed ratio

The role of water on postcombustion CO2 capture by vacuum swing adsorption: Bed layering and purge to feed ratio

Flat Roll Roofs Life Cycle Management Improving With Advanced Technical State Inspection

Priority local criteria for choosing of building technology

Contact Info

Product

Resources

About

The role of water on postcombustion CO₂ capture by vacuum swing adsorption: Bed layering and purge to feed ratio

The role of water on postcombustion CO₂ capture by vacuum swing adsorption: Bed layering and purge to feed ratio