In this work, a new solar still desalination system named vertical rotating wick solar still (VRWSS) was investigated experimentally. The experiments were performed under different operating conditions. The performance of VRWSS was investigated under different wick belt materials (jute and cotton cloth), belt rotational speeds (0.02, 0.05, 0.1, 0.2, and 0.3 rpm), and rotating directions (clockwise and counterclockwise) with and without solar tracking. The VRWSS features are its small size (small horizontal area), fast water evaporation and condensation due to the low thermal capacity and large condensation area. The results revealed that the jute wick obtained higher productivity than the cotton wick at all belt rotational speeds except that at 0.02 rpm. Additionally, the water production for VRWSS-counterclockwise movement increased from 4350 mL/m².day at 0.02 rpm to 5800 mL/m².day at 0.05 rpm, then, the productivity started to decrease with increasing the speed. Furthermore, VRWSS productivity with counterclockwise movement was always larger than that with clockwise direction at all rotational speed except at 0.02 rpm. Besides, the solar tracking for VRWSS (jute wick-counterclockwise-0.1 rpm) increased the freshwater productivity by about 37% with a thermal efficiency of 51%. The cost of produced freshwater from VRWSS was 0.02 $/L.

在这项工作中，实验研究了一种称为垂直旋转灯芯太阳能蒸馏器（VRWSS）的新型太阳能蒸馏器脱盐系统。实验在不同的操作条件下进行。在不同的芯带材料（黄麻和棉布），皮带转速（0.02、0.05、0.1、0.2和0.3 rpm）以及旋转方向（顺时针和逆时针）（有和没有太阳跟踪）的情况下，研究了VRWSS的性能。VRWSS的特点是体积小（水平面积小），由于热容量低和冷凝面积大而导致水快速蒸发和冷凝。结果表明，在所有皮带转速下，除以0.02 rpm的转速外，黄麻灯芯的生产率均高于棉芯。此外，VRWSS逆时针运动的产水量从4350 mL / m增加0.02 rpm的² .day到5800 mL / m ² 0.05 rpm的² .day，然后，生产率随着速度的提高而开始下降。此外，在除0.02 rpm的所有转速下，逆时针运动的VRWSS生产率始终大于顺时针方向的生产率。此外，VRWSS的太阳跟踪（黄麻灯芯逆时针-0.1 rpm）将淡水生产率提高了约37％，热效率为51％。VRWSS生产淡水的成本为0.02美元/升。