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伴随自然对流叠置圆管外蓄冰特性的试验研究 【英文篇名】 Experiment of ice formation performance outside tubes in natural convection 【作者中文名】 刘道平; 周文铸; 陈之航; 【作者英文名】 Liu Daoping; Zhou Wenzhu and Chen Zhihang ?University of Shanghai for Science and Technology; China; 【作者单位】 上海理工大学; 【文献出处】 暖通空调, Hv 冰蓄冷; 试验研究; 【英文关键词】 natural convection; ice storage; experiment; 【摘要】 针对伴随自然对流效应的管外蓄冰问题 ,将立方体空间内水平叠置三圆管外的蓄冰过程作为研究对象 ,研究了恒壁温和水温变化引发的自然对流及密度反转条件下的圆管外蓄冰情况。调查了在高于或低于密度逆转温度点的不同初始温度下自然对流形成的情况 ,及其对水平叠置恒壁温三圆管外冰层形成过程的影响。研究了密度反转和等间距三管间相互作用下 ,围绕上、中、下三管外蓄冰过程蓄冰量的变化规律。 【英文摘要】 For the ice storage on tubes with natural convection, investigates the ice storage process around three horizontal tubes spaced vertically in a rectangular enclosure, under the conditions of constant wall temperature and natural convection and density inverse caused by the water temperature variation. Studies formation of the natural convection for different initial water temperature (higher or lower than the point of density inversion) and their effects on the ice layer increasing.Analyses the variation of...