College of Mechanical Engineering Examines PhD Dissertation on Measuring and Predicting Impact of Heavy Alcohol Blending on Performance, Noise, and Pollutant Emissions
College of Mechanical Engineering Examines PhD Dissertation on Measuring and Predicting Impact of Heavy Alcohol Blending on Performance, Noise, and Pollutant Emissions
the College of Mechanical Engineering at the University of Technology, examined a PhD dissertation entitled “Measurement and Prediction Study of the Effect of Heavy Alcohol Blending on the Performance, Noise, and Pollutants Emission on a Four-Stroke SI Engine.”
The thesis, presented by the PhD candidate Essam Ezzedine Youssef, addressed the thermal and acoustic behavior of heavy alcohols in spark-ignition engines. Two types of spark-ignition engines were used to test the blended gasoline fuel. The first engine was a single-cylinder with a variable compression ratio, and the second was a four-cylinder engine with a compression ratio of 9.1. A performance and emissions analysis study was conducted experimentally and theoretically. The experiments were carried out under different operating conditions: the first at a constant speed and variable load, and the second at a constant load and variable speed. Regarding the types of alcohols and blending ratios with regular gasoline in the first test, butanol ratios were 25% and 50% by volume. The second test was conducted using 6% by mass of both butanol and 1-octanol. In the third simulation test, ethanol and butanol were blended at ratios of 20% and 50% by volume.
The discussion committee consisted of: Prof. Dr. Mahmoud Attallah Mashkour (Chairman), Prof. Dr. Talib Mohammed Nayef, Asst. Prof. Dr. Naseer Salman Kadhim, Asst. Prof. Dr. Mohammed Ali Fayyad, Asst. Prof. Dr. Abdul-Kadhim Mohammed Hassan (Members), and Asst. Prof. Dr. Adel Mahmoud Saleh (Supervisor).
