Over the recent decades, many investigations have been performed to enhance the performance of solar desalination. Some of these studies improved the saline water temperature, while others decreased the glass cover temperature. This study has investigated single-slope solar still using an evacuated tube heat pipe solar collector (ETHP-SC) and a new design of external condenser. The ETHP-SC increased the saline water temperature. On the other hand, the external condenser enhanced the condensation rate using a wind ventilator and a water cooling system. The pressure inside the modified solar desalination decreased by the suction of water vapor with the wind ventilator. The water vapor flowed to the external condenser and was distilled by hitting the perforated copper plate connected to the water cooling system. Results revealed that the freshwater generation of solar desalination using an external condenser and ETHP was about 2.13 times those of conventional ones. The yield fraction of the external condenser was about 18.62% of the total water productivity. Moreover, the carbon dioxide mitigation was almost 29.19 tons and 0.51 tons based on environmental and exergoenvironmental analysis in the modified solar desalination, respectively.

近几十年来，已经进行了许多研究以提高太阳能海水淡化的性能。其中一些研究提高了盐水温度，而其他研究降低了玻璃盖温度。本研究调查了使用真空管热管太阳能集热器 (ETHP-SC) 和新设计的外部冷凝器的单斜太阳能蒸馏器。ETHP-SC 增加了盐水温度。另一方面，外部冷凝器使用通风机和水冷系统提高冷凝率。改进后的太阳能海水淡化装置内部的压力通过风力通风机吸入水蒸气而降低。水蒸气流到外置冷凝器，撞击与水冷系统相连的穿孔铜板而被蒸馏。结果表明，使用外部冷凝器和 ETHP 的太阳能海水淡化的淡水发电量约为传统方法的 2.13 倍。外部冷凝器的产率约为总产水量的 18.62%。此外，基于改良太阳能海水淡化的环境和热环境分析，二氧化碳减排量分别接近 29.19 吨和 0.51 吨。