强化太阳池热性能实验研究

建立了两个表面尺寸2.4m×2.4m、深1.2m结构相同的小型盐水太阳池,通过向太阳池底部添加多孔介质、在太阳池表面加透明塑料膜盖,以及将太阳池与太阳能集热器相结合的方法,探索强化太阳池热性能的途径.实验结果表明:多孔介质用于太阳池可以起到降浊、蓄热的双重功效、加透明塑料膜盖可以有效降低太阳池浊度,减少表面散热,并影响下对流层温度分布;辅加太阳能集热器可以明显增加太阳池下对流层温度,但对非对流层和上对流层影响较小.

Experimental study of thermal characteristics for enhanced solar pond

Two mini-solar ponds with surface dimensions of 2.4 m×2.4 m and depth of 1.2 m were constructed. Several methods are experimentally investigated with the aim of enhancing the thermal characteristics of solar ponds,which include putting porous medium to the bottom of the solar pond, covering the solar pond with a transparent plastic film, and combining solar collector with the solar pond. The experimental results show that the porous medium can save heat and reduce turbidity of solar pond, covering of plastic film can reduce turbidity and surface heat loss, and affect the temperature distribution of the lower convective zone, the introduction of solar collector enhances the temperature of the lower convective zone greatly, but has little effect on non-convective zone and upper convective zone.