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Full-Text Articles in Complex Fluids
Effect Of Hydrogen Sulfide Content On The Combustion Characteristics Of Biogas Fuel In Homogenous Charge Compression Ignition Engines, Mohammad Alrbai, Adnan Darwish Ahmad, Sameer Al-Dahidi, Ahmad M. Abubaker, Loiy Al-Ghussain, Hassan S. Hayajneh, Nelson Akafuah
Effect Of Hydrogen Sulfide Content On The Combustion Characteristics Of Biogas Fuel In Homogenous Charge Compression Ignition Engines, Mohammad Alrbai, Adnan Darwish Ahmad, Sameer Al-Dahidi, Ahmad M. Abubaker, Loiy Al-Ghussain, Hassan S. Hayajneh, Nelson Akafuah
Institute of Research for Technology Development Faculty Publications
The use of biogas fuel in homogeneous charge compression ignition (HCCI) engines has been promoted recently due to the environmental advantages. However, hydrogen sulfide (H2 S) forms a non-environment friendly content and biogas impurity that its removal is associated with high costs. In this study, the effect of using biogas fuel in the HCCI engines under different operating conditions is investigated to shed light on the best scenarios of biogas combustion, even with the presence of H2S contents. A modified reaction mechanism is introduced by considering the re- actions of H2 S with other species in the air-fuel mixture. The …
Spatial Positioning And Operating Parameters Of A Rotary Bell Sprayer: 3d Mapping Of Droplet Size Distributions, Adnan Darwish Ahmad, Binit B. Singh, Mark Doerre, Ahmad M. Abubaker, Masoud Arabghahestani, Ahmad A. Salaimeh, Nelson K. Akafuah
Spatial Positioning And Operating Parameters Of A Rotary Bell Sprayer: 3d Mapping Of Droplet Size Distributions, Adnan Darwish Ahmad, Binit B. Singh, Mark Doerre, Ahmad M. Abubaker, Masoud Arabghahestani, Ahmad A. Salaimeh, Nelson K. Akafuah
Institute of Research for Technology Development Faculty Publications
In this study, we evaluated the fundamental physical behavior during droplet formation and flow from a rotary bell spray in the absence of an electrostatic field. The impact of a wide range of operating parameters of the rotary bell sprayer, such as flow rates, rotational speeds, and spatial positioning, on droplet sizes and size distributions using a three-dimensional (3-D) mapping was studied. The results showed that increasing the rotational speed caused the Sauter mean diameter of the droplets to decrease while increasing flow rate increased the droplet sizes. The rotational speed effect, however, was dominant compared to the effect of …
Scaling Nonreactive Cross Flow Over A Heated Plate To Simulate Forest Fires, Nikolay Gustenyov, Nelson Akafuah, Ahmad Salaimeh, Mark A. Finney, Sara Mcallister, Kozo Saito
Scaling Nonreactive Cross Flow Over A Heated Plate To Simulate Forest Fires, Nikolay Gustenyov, Nelson Akafuah, Ahmad Salaimeh, Mark A. Finney, Sara Mcallister, Kozo Saito
Institute of Research for Technology Development Faculty Publications
The paper reports visualization of the flow of smoke over a flat surface inside of a low-speed wind tunnel. A heating plate flush mounted on the wind tunnel floor simulated a spreading line fire that produces uniform heat flux under constant wind speed condition. A paper-thin cloth was soaked with commercially available Vaseline and placed on top of the heating plate; when it is heated, it produced thick white smoke, ideal for flow visualization. Two sides and top of the wind tunnel were made of a trans- parent acrylic sheet that enabled LED and laser sheet light illumination of the …