Experimental Investigation and Thermodynamic Performance Analysis of a Solar Distillation System with PCM Storage: Energy and Exergy Analysis

  • Ali A.F. Al-Hamadani
  • S.K. Shukla Centre for Energy Resources and Development, Indian Institute of Technology (BHU), Varanasi, India
Keywords: Water distillation, Solar energy, Exergy, Efficiency, Melting, Lauric acid, Myristic acid


This article presents the experimental performance investigation of solar still integrated with two types of phase change materials namely Lauric acid and Myristic acid independently, used as storage medium of solar energy. The experiments were performed during the months of April-May 2011, under Indian climatic conditions. The effect of input parameters such as mass of water in basin and mass of phase change material integrated with solar still basin on productivity of the solar still has been studied. Also on the basis of the experimental data the values of exergy and energy were calculated. It has been found that (i) productivity of solar still integrated with Lauric acid is 22% more than the solar still integrated with Myristic acid. (ii) the energy efficiencies for solar still integrated with Lauric acid and Myristic acid are found to be 39.6% and 34.4% where as exergy efficiencies values are 0.29% and 0.74% respectively (iii) the cost of using Lauric acid is lesser than using Myristic acid for same amount of productivity.


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Author Biographies

Ali A.F. Al-Hamadani

Ali Abdulruda Farhan Al-Hamadani is teaching for more than 10 years and currently working in the Department of Mechanical Engineering Wasit University, Iraq as Assistant Lecturer in Dept. of Mechanical Engineering. He has been graduated from Babylon University College of Engineering, Iraq in 1994 and post graduated from Technology University College of Engineering in 2003. Currently he is pursuing Ph.D. in the field of Solar Thermal Engineering System form IIT (BHU) Varanasi, India. His areas of interest are Modelling of Solar Distillation System, Life Cycle Cost Analysis etc.

S.K. Shukla, Centre for Energy Resources and Development, Indian Institute of Technology (BHU), Varanasi, India

S.K. Shukla is working as Coordinator, Centre for Energy Resources and Development, Indian Institute of Technology (BHU), Varanasi, India. He has been post graduated and completed his Ph.D. from IIT Delhi. His areas of interest are Thermal Engineering, Heat and Mass Transfer Analysis in Solar Thermal Systems and Design of Renewable Energy Systems, Modelling etc.


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