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首页> 外文期刊>Science and Technology for the Built Environment >Evaluation of governing heat and mass transfer resistance in membrane-based energy recovery ventilators with internal support structures
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Evaluation of governing heat and mass transfer resistance in membrane-based energy recovery ventilators with internal support structures

机译：基于膜的能量回收呼吸机的测定热和传质阻力评价内部支撑结构

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Energy recovery ventilators are an effective way to reduce energy consumption in buildings while satisfying ventilation standards. As membrane technology and manufacturing methods improve, membrane-based energy recovery ventilators are seeing increased market penetration. In the present study, the feasibility of membrane energy recovery ventilators designed to fit in a commercial building wall cavity is investigated. A heat and mass transfer resistance and pressure drop model is developed for a low aspect ratio (width/height) exchanger and is used to evaluate the sensible and latent effectiveness of a counter-flow energy recovery ventilator with internal support structures. The performance of strip-fin and pin-fin structures are compared and dominant heat and mass transfer resistances are investigated. It is shown that for all cases the sensible heat transfer is dominated by the convective resistance while the dominant mass transfer resistance shifted to the membrane at smaller hydraulic diameters. The results suggest that as membrane technology improves, enhancements to the airside heat and mass transfer coefficients will be required to continue to realize performance gains.
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