Influence of Flow Baffles On Flow Mixing of Two Air Streams with Dissimilar Temperatures: Experimental Study
Department
Mechanical and Aerospace Engineering
Major
Aerospace Engineering
Research Advisor
Finaish, Fathi
Advisor's Department
Mechanical and Aerospace Engineering
Funding Source
Missouri S&T Opportunities for Undergraduate Research Experiences (OURE) Program
Abstract
Thermal Stratification is one of the major problems that occur inside the Heating, Venting and Air-Conditioning systems “HVAC”. One of the many suggested solutions for this problem is using flow baffles. In this study, the effect of flow baffles on the mixing of two air streams with temperature difference of 55°F has been investigated. A baffle is installed at different angles and different sizes for each test. An array of thermocouples is employed and connected to data acquisition system to collect the flow temperature distribution at three different stations inside the mixing chamber. Using Tecplot 360, graphs of the temperature distributions inside the mixing chamber are produced. Mixing effectiveness of each test is calculated and minimum and maximum temperatures are also found. Results show that mixing effectiveness is at best when 20”x10” baffle is installed at 90°. As expected, the results also show that the mixing effectiveness of the two flow streams is increased as the downstream distance increased.
Biography
Anan is in the Mechanical & Aerospace Engineering department at Missouri S&T. He graduated from St. Louis Community College and transferred to Missouri S&T in 2010. Anan served as an educational assistant for six semesters at St. Louis Community College, helping with mathematics, physics and basic engineering courses. He participated in multiple research projects involving mathematics and thermodynamics. Currently he is employed by the Undergraduate Advising Office as a student mentor & also employed by the department of Mechanical & Aerospace Engineering as a research assistant. Anan volunteers as a recruiter for community service projects for Habitat for Humanity and the Catholic Charities of New Orleans. Anan currently is an officer at the Advanced Aero Vehicle Group and a president and a member of many organizations at Missouri S&T.
Research Category
Engineering
Presentation Type
Oral Presentation
Document Type
Presentation
Award
Engineering oral presentation, First place
Location
Ozark Room
Presentation Date
06 Apr 2011, 11:00 am - 11:30 am
Influence of Flow Baffles On Flow Mixing of Two Air Streams with Dissimilar Temperatures: Experimental Study
Ozark Room
Thermal Stratification is one of the major problems that occur inside the Heating, Venting and Air-Conditioning systems “HVAC”. One of the many suggested solutions for this problem is using flow baffles. In this study, the effect of flow baffles on the mixing of two air streams with temperature difference of 55°F has been investigated. A baffle is installed at different angles and different sizes for each test. An array of thermocouples is employed and connected to data acquisition system to collect the flow temperature distribution at three different stations inside the mixing chamber. Using Tecplot 360, graphs of the temperature distributions inside the mixing chamber are produced. Mixing effectiveness of each test is calculated and minimum and maximum temperatures are also found. Results show that mixing effectiveness is at best when 20”x10” baffle is installed at 90°. As expected, the results also show that the mixing effectiveness of the two flow streams is increased as the downstream distance increased.
