在黑体概念的基础上，设计了1种新型太阳能腔体集热器，并进行了实验。新型太阳能腔体集热器利用黑腔的高吸收率、泡沫板的良好隔热性以及玻璃板营造的温室效应，使得集热器的整体热损失明显下降，从而提高了集热效率。测试结果表明：集热器内介质为水时，平均温升为15.1℃，最大温升为21℃，热效率最低为53%。各项热损失计算结果表明：黑腔辐射造成的热损失最大，反射热损失和对流热损失很小。新型太阳能腔体集热器结构紧凑，单位体积的有效吸热面积较平板太阳能集热器和真空管太阳能集热器大。

On the basis of traditional cavity absorber, a kind of new solar cavity-heat receiver is designed. With advantage of high absorptivity and good thermal insulation, the whole heat loss gets smaller and can obtain high thermal efficiency. The result of the experiment shows that the mean temperature rise is 15.1℃ and the highest temperature rise is 21℃ when water is filled, and the thermal efficiency is 53% under present situation. The result of the thermal loss calculation indicates that radiation heat loss accounts for the most, while reflection heat loss and convection heat loss is small. The compact design has bigger effective heat absorbing area per volume than flat plate solar collector and evacuated tubular collector.