Ventilation by displacement- its characteristics, design and other related developments

Y.Li.; A.E. Delsante; M. Sandberg

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Ventilation by displacement- its characteristics, design and other related developments

机译：位移通风-其特点，设计和其他相关发展

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Displacement uses the basic principle that warmer air rises to achieve a partly piston-like flow pattern in a room. In many situations, it has been proved to be more efficient than mixing ventilation for simultaneously removing excess heat and achieving good air quality. Its basic thermal and flow characteristics are very different from that of mixing ventilation. Simple engineering models are summarised for predicting near-field length, airspeed in the far-field, air tem- perature in the occupied regions, the vertical air temperature gradi- ent, concentration in the polluted region, the clean zone height and the cooling loads.

机译：排量使用的基本原理是，较热的空气会上升，从而在室内实现部分类似于活塞的流动模式。在许多情况下，它被证明比混合通风更有效，可同时去除多余的热量并达到良好的空气质量。它的基本热和流量特性与混合通风有很大不同。总结了简单的工程模型，以预测近场长度，远场空速，所占区域的气温，垂直空气温度梯度，污染区域的浓度，清洁区高度和冷却负荷。

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《Australian Refrigeration Air Conditioning & Heating》 |1998年第3期|p.31-39|共9页
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Y.Li.; A.E. Delsante; M. Sandberg;
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Ventilation by displacement- its characteristics, design and other related developments

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