透明插板对太阳能烟囱通风的增强效应

何国青,吕达

Enhancing solar chimney ventilation efficiency by insertion of transparent panel

Guo-qing HE,Da LV

表 2 C、D、E组各时段吸热功率、垂面辐照度、测点风速的平均值

Tab.2 Averaged heat absorption, vertical irradiation, and flow speed for each time period in cases C, D, and E

时间段 实验组 热边界层 数目 $\overline Q_{ {\rm{in} } }/W$ $\overline Q_{ {\rm{out} } }/W$ $\overline Q_{ {\rm{all} } }/W$ $\overline E$/ (W·m−2) $\overline V_{ {\rm{in} } }$/ (m·s−1) $R_{Q_{ {\rm{in} } } }^{\rm{C}}$/% $R_{ {{E} } }^{\rm{C} }$/% $R_{v_{ {\rm{in} } } }^{\rm{C} }$/% P 14:39—17:00 C 2 76.5 42.2 118.7 187.8 0.34 0 0 0 − D 4 72.0 32.9 104.9 166.0 0.34 −5.8 −11.6 1.6 <0.001 E 4 76.8 37.8 114.7 181.5 0.36 0.5 −3.4 5.1 <0.001 14:39—15:20 C 2 121.5 72.5 193.9 306.9 0.34 0 0 0 − D 4 121.9 59.6 181.5 287.2 0.33 0.3 −6.4 −0.9 0.009 E 4 127.4 67.6 194.9 308.4 0.34 4.8 0.5 2.5 <0.001 15:20—16:20 C 2 96.4 50.0 146.4 231.7 0.37 0 0 0 − D 4 85.6 36.8 122.4 193.7 0.38 −11.2 −16.4 1.8 <0.001 E 4 95.4 43.9 139.3 220.4 0.39 −1.1 −4.9 4.1 <0.001 16:20—17:00 C 2 7.9 3.8 11.8 18.6 0.30 0 0 0 − D 4 7.6 3.0 10.6 16.8 0.31 −4.6 −9.6 3.7 <0.001 E 4 4.9 2.1 7.0 11.0 0.33 −38.5 −40.8 9.2 <0.001