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Full-Text Articles in Mechanical Engineering
Impact Assessment Of Problem-Based Learning In An Engineering Science Course, Karim J. Nasr, Bassem Ramadan
Impact Assessment Of Problem-Based Learning In An Engineering Science Course, Karim J. Nasr, Bassem Ramadan
Mechanical Engineering Publications
This paper presents the development and implementation of Problem-Based Learning (PBL) in an engineering thermodynamics course at Kettering University. In this project, the thermodynamics course was restructured as modules presenting practical applications first, whereas principles were introduced just-in-time and as encountered. Theoretical information was presented to support the understanding of knowledge as students applied inquiry-based learning. These modules were carefully designed to reflect traditional concepts but made more exciting as students discover the need for the laws and principles. The classroom format was interactive, cooperative and revolves around students' needs. Formative and summative assessment tools were designed to examine the …
Air Curtains Of Open Refrigerated Display Cases Revisited: A New Technique For Infiltration Rate Measurements, M. Amin, Homayun K. Navaz, D. Dabiri, Ramin T. Faramarzi
Air Curtains Of Open Refrigerated Display Cases Revisited: A New Technique For Infiltration Rate Measurements, M. Amin, Homayun K. Navaz, D. Dabiri, Ramin T. Faramarzi
Mechanical Engineering Publications
Air curtains are created in open refrigerated vertical display cases for creating an invisible barrier between the cold air inside and the warm air outside the case. A systematic approach is developed to minimize the entrainment and infiltration of warm air into the case by optimizing the performance of an air curtain through adjusting pertinent flow parameters and case geometry. A modular display case was manufactured for the parametric studies. In this modular display case the geometry and flow parameters were changed and the infiltration rate was measured using a new technique, tracer gas method, which could be performed noticeably …