Preliminary study on air-to-air latent heat exchanger fabricated using hollow fiber composite membrane for air-conditioning applications

Cho, Hyejin; Cheon, Seong-Yong; Jeong, Jae‐Weon

doi:10.1016/j.enconman.2021.115000

Cited by 15 publications

(3 citation statements)

References 26 publications

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“…Li and Yan [13] pointed out that the best thermal conductivity of the membrane is about 0.1-1 W m -1 K -1 , and the membrane with small adsorption hysteresis is conducive to latent heat recovery. Cho et al [14] selected hollow-fiber composite membrane polyether sulfone (PES) as membrane material, and the parameter analysis showed that the best ratio of secondary air volume to primary air volume is 1.0. Baldinelli et al [15] developed a new type of organic polymer membrane for heat recovery that had a lower production cost.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Geometric Parameters on the Performance of a Membrane‐Based Enthalpy Exchanger

et al. 2023

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A membrane‐based enthalpy exchanger (MBEE) with partial inlet is proposed. Numerical simulations were conducted to investigate the effect of Reynolds number (Re), the ratio of entrance area to channel cross‐sectional area Re−c, and channel length/width ratio Rl−w on the performance of the MBEE. Effectiveness, pressure loss, and flow patterns were evaluated for optimization. Moreover, the entransy theory was applied to analyze the mechanism of the heat transfer enhancement of the MBEE. The results indicate that the larger the Re–c, the higher the effectiveness and lesser pressure drop of the MBEE at the same volumetric flow rate. The total heat exchange rate per unit area and the pressure drop per unit length are reduced with the increasing of Rl–w .

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Section: Introductionmentioning

confidence: 99%

“…Cho et al. 14 selected hollow‐fiber composite membrane polyether sulfone (PES) as membrane material, and the parameter analysis showed that the best ratio of secondary air volume to primary air volume is 1.0. Baldinelli et al.…”

Section: Introductionmentioning

confidence: 99%

Effect of Geometric Parameters on the Performance of a Membrane‐Based Enthalpy Exchanger

et al. 2023

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“…The impacts of flow configurations, module geometries and structure of membrane on the latent heat recovery efficiency were explored in detail. Liang et al [8] proposed an independent air dehumidification system with membrane-based total heat recovery. The effects of airflow rates, relative humidity and temperature on the air dehumidification rates and thermal coefficient were evaluated experimentally.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the net outdoor airflow ratio in supply air of membrane-based energy recovery ventilator

Kong

Zhang

et al. 2022

E3S Web Conf.

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The total energy recovery ventilator for outdoor air handing plays an important role in reducing energy consumption of the ventilation system. At the same time, the cross infection between fresh air and return air is a direct threat to the safety of energy recovery components with the influence of COVID-19. Therefore, how to improve the total exchange effectiveness and net outdoor air flow ratio in supply air of the heat recovery system has become an urgent problem to be solved. In this study, the composite membrane was prepared by non-woven fabric, siloxaneamide and lithium chloride solution, which was used as the membrane for the heat and mass transfer between fresh air and return air. The variation of the selective permeability of the composite membrane was studied experimentally. The experimental results show that the highest permeance of the composite membrane for the water vapor permeability can reach until 32.5×10-8kg/m2·s·Pa. The net outdoor air flow ratio in supply air is 94% when the air volume is 550m3/h The heat exchange efficiency of the heat recovery device is 63.2% under the conditions of the dry and wet bulb temperatures of return air and outdoor air are 21.2°C/12.9°C and 2.3°C/1.2°C, respectively.

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Development of empirical models to predict latent heat exchange performance for hollow fiber membrane-based ventilation system

Cho

Cheon

Jeong

2022

Applied Thermal Engineering

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Preliminary study on air-to-air latent heat exchanger fabricated using hollow fiber composite membrane for air-conditioning applications

Cited by 15 publications

References 26 publications

Effect of Geometric Parameters on the Performance of a Membrane‐Based Enthalpy Exchanger

Effect of Geometric Parameters on the Performance of a Membrane‐Based Enthalpy Exchanger

Experimental study on the net outdoor airflow ratio in supply air of membrane-based energy recovery ventilator

Development of empirical models to predict latent heat exchange performance for hollow fiber membrane-based ventilation system

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