In view of the coupling action of solar radiation and indoor heat source for solar energy chimney, the effects of the solar radiation (I), heat flux of the indoor heat source (w), the equivalent area of the indoor heat source (s) and the height of the solar chimney import upon ground (h) on the ventilation performance of the solar chimney were studied by three-dimensional numerical simulation. The results show that under the same structural parameters of the solar chimney, the coupling effect of indoor heat source and solar radiation of the solar chimney on ventilation rate is mutual promotion;With the increase of the height of solar chimney import upon ground (h), ventilation rate increase continuously, and the amplitude increases with the increase of heat flux of the indoor heat source, decreases with increasing the intensity of solar radiation;At the same conditions, the solar chimney ventilation rate increases with the increase of equivalent heat source area.%针对太阳辐射和室内热源对太阳能烟囱的耦合作用,通过三维数值模拟,研究太阳辐射强度I、室内热源热流密度w、等效内热源面积s和太阳能烟囱进口距地面的高度h对太阳能烟囱通风性能的影响.研究结果表明:当太阳能烟囱结构参数相同时,室内热源和太阳辐射对太阳能烟囱通风量的影响相互促进;随着太阳能烟囱进口距地面高度h的逐渐增加,通风量持续增大,其增大幅度随着室内热源热流密度的增大而增大,随着太阳辐射强度的增大而减小;在相同条件下,太阳能烟囱通风量随着等效内热源面积的增大而增大.
展开▼
