Isothermal dehumidification or gas drying using vacuum sweep dehumidification

Scovazzo, Paul; Scovazzo, Anthony J.

doi:10.1016/j.applthermaleng.2012.05.019

Cited by 62 publications

(19 citation statements)

References 14 publications

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“…This process is highly inefficient because a significant amount of energy is used for condensing water vapor [1][2][3]. Hence, it is necessary to remove moisture before cooling the air.…”

Section: Introductionmentioning

confidence: 99%

“…One chamber is continuously fed with a stream of humid supply air at atmospheric pressure. The other chamber is connected to a vacuum pump to produce a transmembrane pressure as a driving force for the filtration process [1][2][3][4][5]. As the humid air stream passes along the membrane, the water vapor is selectively and efficiently sieved out, without any change in air temperature.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and modeling analysis of membrane-based air dehumidification

Bui

Chen

Nida

et al. 2015

Separation and Purification Technology

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“…This process is highly inefficient because a significant amount of energy is used for condensing water vapor [1][2][3]. Hence, it is necessary to remove moisture before cooling the air.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental and modeling analysis of membrane-based air dehumidification

Bui

Chen

Nida

et al. 2015

Separation and Purification Technology

View full text Add to dashboard Cite

“…When the humid air stream passes along the membrane, the water vapor is selectively and efficiently sieved out. As a result, the air becomes dried without any change in its temperature [11][12][13]15].…”

Section: Introductionmentioning

confidence: 99%

“…One chamber is continuously fed with a stream of humid supply air. The other chamber is connected to a vacuuming system to produce a transmembrane pressure which acts as a driving force for the filtration process [1,11,12,14]. When the humid air stream passes along the membrane, the water vapor is selectively and efficiently sieved out.…”

Section: Introductionmentioning

confidence: 99%

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Water vapor permeation and dehumidification performance of poly(vinyl alcohol)/lithium chloride composite membranes

Bui

Nida

et al. 2016

Journal of Membrane Science

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a b s t r a c tThin and robust composite membranes comprising stainless steel scaffold, fine and porous TiO 2 and polyvinyl alcohol/lithium chloride were fabricated and studied for air dehumidification application. Higher hydrophilicity, sorption and permeation were observed for membranes with increased lithium chloride content up to 50%. The permeation and sorption properties of the membranes were investigated under different temperatures. The results provided a deeper insight into the membrane water vapor permeation process. It was specifically noted that lithium chloride significantly reduces water diffusion energy barrier, resulting in the change of permeation energy from positive to negative values. Higher water vapor permeance was observed for the membrane with higher LiCl content at lower temperature. The isothermal air dehumidification tests show that the membrane is suitable for dehumidifying air in high humid condition. Additionally, results also indicate a trade-off between the humidity ratio drop with the water vapor removal rate when varying air flowrate.

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Air Conditioning Systems: Cooling and Dehumidification

Chua

Bui

Kumja

et al. 2017

Kirk-Othmer Encyclopedia of Chemical Technology

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Air conditioning is essential for maintaining thermal comfort in indoor environments. In tropical climates, the energy consumed due to heating, ventilation, and air‐conditioning ( HVAC ) can exceed 50% of the total energy consumption of a building. Therefore, there is tremendous potential to improve the efficiency of air‐conditioning systems for building applications. This article focuses on recent developments in air‐conditioning systems, particularly innovative technologies in cooling and dehumidification including adsorption cooling and dew point evaporative cooling and new generations of solid‐based desiccant dehumidifiers, liquid‐based desiccants and novel membranes that are able to sieve water vapor when a trans membrane pressure is applied. The principles behind these technologies and recent progresses in terms of performance testing and improved efficiency are discussed.

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Isothermal dehumidification or gas drying using vacuum sweep dehumidification

Cited by 62 publications

References 14 publications

Experimental and modeling analysis of membrane-based air dehumidification

Experimental and modeling analysis of membrane-based air dehumidification

Water vapor permeation and dehumidification performance of poly(vinyl alcohol)/lithium chloride composite membranes

Air Conditioning Systems: Cooling and Dehumidification

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