Feasibility Study on Dehumidification of Air by Thin Porous Alumina Gel Membrane

Asaeda, Masashi; Du, Luong Dinh; Ushijima, Masao

doi:10.1007/978-3-662-21830-3_65

Cited by 6 publications

(4 citation statements)

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“…Various studies have examined the influence of humidity and the humidification method of air [1][2][3]. In the present study, based on previous studies that examined air dehumidification by a thin porous plate [4,5], we investigate direct recovery and reuse of the moisture from exhaust gas using supply air through a thin porous plate or membrane. In this case, the following phenomena might occur: 1) mass and heat transport and the accompanying phase change inside the porous plate, 2) water evaporation on the surface of the porous plate and moisture diffusion around the surface of the plate on the supply air side, and 3) condensation of moisture on the porous plate surface on the exhaust gas side.…”

Section: Introductionmentioning

confidence: 99%

A basic study on humidity recovery by using micro‐porous media (Effects of thermal condition of fluids and geometrical condition of apparatus on transport performance)

Wang

Utaka

Tasaki

2006

Heat Trans. Asian Res.

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Using an experimental apparatus to examine the performance of heat and mass transfer between constant-temperature water and dry air through a porous plate having extremely small pores, the effects of the thermal conditions in the fluids and the geometric condition of the apparatus on moisture transport were measured. The effects of water temperature, thickness of the porous plate, and channel height of the flowing air on moisture transport are noticeable. However, the effect of air temperature in the channel inlet on moisture transport is slight. In addition, in order to evaluate the degree of air humidity absorption, a parameter called the moisture absorption rate was introduced. The moisture absorption rate was shown to decrease with increasing air velocity and varies only slightly for a plate thickness of 1 mm and decreases for a plate thickness of 3.5 mm with increasing water temperature.

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Section: Introductionmentioning

confidence: 99%

A basic study on humidity recovery by using micro‐porous media (Effects of thermal condition of fluids and geometrical condition of apparatus on transport performance)

Wang

Utaka

Tasaki

2006

Heat Trans. Asian Res.

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show abstract

“…In addition, from the viewpoint of saving space, it is desirable to recover and reuse the humidity in the exhaust gas using the supply air. In the present study, a method involving a thin porous plate for air dehumidification [4,5], in which direct recovery of the moisture from the exhaust gas to the supply air through a thin porous plate or membrane, is considered. In this case, phenomena such as the transport of water, steam, and air inside the porous plate are examined.…”

Section: Introductionmentioning

confidence: 99%

A basic study on humidity recovery using micro‐porous media: General characteristics and effect of material properties on transport performance

Wang

Utaka

Tasaki

2006

Heat Trans. Asian Res.

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As a first step toward evaluating factors that influence humidity and heat transfer from moist air to dry air through porous media having very small pores, the present paper attempts to clarify factors that influence moisture transport between constant-temperature water and dry air through a porous media plate. The effect of the pore diameter of the porous plate on the humidity transport through a porous plate was found to depend strongly on the thickness and pore diameter of the porous plate. That is, the smaller the pore diameter and the thicker the plate, the greater the effect of the pore diameter on the humidity transfer. In addition, the performance of heat and mass transfer were confirmed to increase with respect to the increase of air velocity. In addition, a parameter called the humidity absorption rate was introduced to evaluate the utilization degree of the air capacity to absorb humidity. The humidity absorption rate decreased with increases in both air velocity and plate thickness.

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“…From the point of view of saving space, it is desirable to recover and reuse the humidity in the exhaust gas using the supply air. In the present study, a method involving a thin porous plate for air dehumidification (Asaeda et al, 1984(Asaeda et al, , 1986,in which direct recovery of the moisture of the exhaust gas to the supply air through a thin porous plate or membrane, is considered. In this case, the following phenomena may occur: 1) mass and heat transport and an accompanying phase change inside the porous plate, 2) water evaporation from the surface of the porous plate and moisture diffusion around the surface of the plate on the supply air side, and 3) condensation of moisture on the porous plate surface on the exhaust gas side.…”

Section: Introductionmentioning

confidence: 99%

Moisture Transport Through a Porous Plate with Micro Pores

Wang¹,

Utaka²

2011

Mass Transfer - Advanced Aspects

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Feasibility Study on Dehumidification of Air by Thin Porous Alumina Gel Membrane

Cited by 6 publications

References 0 publications

A basic study on humidity recovery by using micro‐porous media (Effects of thermal condition of fluids and geometrical condition of apparatus on transport performance)

A basic study on humidity recovery by using micro‐porous media (Effects of thermal condition of fluids and geometrical condition of apparatus on transport performance)

A basic study on humidity recovery using micro‐porous media: General characteristics and effect of material properties on transport performance

Moisture Transport Through a Porous Plate with Micro Pores

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