{"id":5826,"date":"2024-10-23T10:28:00","date_gmt":"2024-10-23T07:28:00","guid":{"rendered":"https:\/\/en.coeng.uobaghdad.edu.iq\/?p=5826"},"modified":"2024-10-23T10:28:00","modified_gmt":"2024-10-23T07:28:00","slug":"discussion-of-a-masters-thesis-in-the-department-of-mechanical-engineering-16","status":"publish","type":"post","link":"https:\/\/en.coeng.uobaghdad.edu.iq\/?p=5826","title":{"rendered":"Discussion of a master’s thesis in the Department of mechanical Engineering"},"content":{"rendered":"

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It was conducted on Thursday, 19\/9\/2024, in the Graduate Studies Hall of the Petroleum Engineering Department.\u00a0 the discussion of the master’s thesis of the student Ali Abdulrahman Qasim<\/strong>, which is tagged:<\/p>\n

” Performance Analysis of Solar Updraft Tower with and without Using Phase Change Material”.<\/p>\n

The discussion committee consisted of names listed below:<\/p>\n

1- Prof. Dr. Ammar Ali Farhan (Chairman)<\/p>\n

2- Asst. Prof. Dr. Raad K. Mohammed (Member)<\/p>\n

3- Asst. Prof. Dr. Sarmad A. Abdul Hussein (Member)<\/p>\n

4- Prof. Dr. Munther Abdullah Mussa (Supervisor)<\/p>\n

 <\/p>\n

In this study, a mutual numerical and experimental approach was used to investigate the effects of integrating paraffin wax as a PCM into the SUT and to analyze its potential for enhancing the system’s performance. A small-scale SUT with a quarter-circular tank, 6 cm in height, filled with paraffin wax as PCM, was modeled and analyzed numerically using CFD software (ANSYS FLUENT 2022\/R1). Two cases were investigated for comparison: one with the tank filled with paraffin wax acting as PCM, and the other with the tank containing only air. The simulation was conducted during daytime intervals, starting at 9:00 AM and ending at 5:30 PM, with intervals mostly of 90 minutes. At the last reading, which was near sunset, the maximum air velocity reached 0.99 m\/s for the case with PCM, compared to 0.82 m\/s for the case without PCM. The performance curves of average air velocity, average domain temperature rise, and mass flow rate revealed improvements of 12.75%, 18.1%, and 7.5%, respectively, for the period from 1:30 PM to the end of the daytime period when paraffin wax was used as PCM.<\/p>\n

Accordingly, the thesis included recommendations including:<\/p>\n