Main Article Content
The performance of two solar still systems has been investigated experimentally by taking the effect of parabolic trough collector (PTC) and phase change material (PCM). The effect was investigated under different environmental conditions. The productivity of the solar still was the main factor that was considered as a criterion for comparison. One day was taken under the investigation; 22-December 2020. Results show that a solar still using PTC with PCM has better productivity and temperature than without using PTC, And the additive PTC unit with the PCM basin causes an increase in temperatures of the system, and also an increase in rate productivity by 0.72 % than the solar still system without PTC.