摘要
介绍了一种新型的真空瓶太阳热水器．由于内外玻璃瓶胆间有真空夹层，内有黑色多孔吸收体，减少了热损，提高了吸收率．通过理论计算和实验研究，表明其有较高的热效率，且其结构简单，易于加工制造，成本低，展示较好的应用前景．
A novel erevacuated bottle solar water heater is introduced, where the heat loss is decreased and absorbance is increased owing to a vacuum gap between the inner glass liner and the outer one and black porous absorbing medium respectively. Theoretical calculation and experimental study show that the heater is characterized by its higher thermal efficiency, simple structure and easy processing and low cost.
关键词
真空瓶
立体吸收
太阳能热水器
热性能
Evacuated bottle, porous medium, cubic absorption, spherical part,columnar part
