Undergraduate Project in Compressor Rig Design, Fabrication and Testing for Complete Engineering Training

Author(s):  
Huu Duc Vo ◽  
Jean-Yves Trépanier

An ambitious project in propulsion was introduced as part of the final-year integrator project offerings of the mechanical and aerospace engineering programs at École Polytechnique de Montréal in 2011–2012. It has been running successfully for the past three academic years. The project consists in the design, fabrication and placement into service of a functional instrumented multi-stage compressor test rig, including the compressor, for research in compressor aerodynamics. A team of 15–17 senior-year undergraduate engineering students are given set of design and performance specifications and measurement requirements, an electric motor and drive, a data acquisition system and some measurement probes. They must complete the project in two semesters with a budget on the order of Can$15,000. The compressor is made from rapid prototyping to keep production cost and time reasonable. However, its required rotation speed of 7200 rpm stretches the limits of the plastic material and presents the same structural challenges as industrial compressors running at higher speeds. The students are split into sub-teams according to the required disciplines, namely compressor aerodynamics, general aerodynamics, structures, dynamics, mechanical design and integration, instrumentation and project management. For the initial phase, which covers the first two months, the students receive short seminars from experts in academia and industry in each discipline and use the knowledge from fundamental engineering courses to analytically model the different components to come up with a preliminary design. In the second phase, covering months three through six, the students are trained at commercial simulation tools and use them for detailed analysis to refine and finalize the design. In each of the first two phases, the students present their work in design reviews with a jury made up of engineers from industry and supervising professors. During the final phase, the compressor is built and tested with data acquisition and motor control programs written by the students. Finally, the students present their results with comparison of measured performance with numerical and analytical predictions from the first two phases and hand over their compressor rig with design and test reports as well as a user manual and an assembly/maintenance manual. This complete project allows the students to put into practice virtually all the courses of their undergraduate engineering curriculum while giving them an extensive taste of the rich and intellectually challenging environment of gas turbine and turbomachinery engineering.

Author(s):  
Huu Duc Vo ◽  
Jean-Yves Trépanier

An ambitious project in propulsion was introduced as part of the final-year integrator project offerings of the mechanical and aerospace engineering programs at École Polytechnique de Montréal in 2011–2012. It has been running successfully for the past three academic years. The project consists in the design, fabrication, and placement into service of a functional instrumented multistage compressor test rig, including the compressor, for research in compressor aerodynamics. A team of 15–17 senior-year undergraduate engineering students is given a set of design and performance specifications and measurement requirements, an electric motor and drive, a data acquisition system, and some measurement probes. They must complete the project in two semesters with a budget on the order of Can$15,000. The compressor is made from rapid prototyping to keep production cost and time reasonable. However, the required rotation speed of 7200 rpm stretches the limits of the plastic material and presents the same structural challenges as industrial compressors running at higher speeds. The students are split into subteams according to the required disciplines, namely, compressor aerodynamics, general aerodynamics, structures, dynamics, mechanical design and integration, instrumentation, and project management. For the initial phase, which covers the first two months, the students receive short seminars from experts in academia and industry in each discipline and use the knowledge from fundamental engineering courses to analytically model the different components to come up with a preliminary design. In the second phase, covering three to six, the students are trained at commercial simulation tools and use them for detailed analysis to refine and finalize the design. In each of the first two phases, the students present their work in design reviews with a jury made up of engineers from industry and supervising professors. During the final phase, the compressor is built and tested with data acquisition and motor control programs written by the students. Finally, the students present their results with comparison of measured performance with numerical and analytical predictions from the first two phases and hand over their compressor rig with design and test reports as well as a user manual and an assembly/maintenance manual. This complete project allows the students to put into practice virtually all the courses of their undergraduate engineering curriculum while giving them an extensive taste of the rich and intellectually challenging environment of gas turbine and turbomachinery engineering.


Author(s):  
Jining Qiu ◽  
Bo Zhang ◽  
Huimin Dong ◽  
Yuan Gao

The ability to solve engineering design problems using academic knowledge flexibly is essential for mechanical engineering students and is also quality that employers look for. This paper introduces how students could explore and experience the process of mechanical design in the course project of Theory of Machines and Mechanisms (TMM) in Dalian University of Technology (DUT) through sharing the design process of accelerator (gear-box) in wind power generator by one representative team of students in the course project. Firstly, design requirements are set based on industrial need and the choosing of the best scheme of multi-stage gear train is conducted. Following that is the design of kinematic parameters of gears and the evaluation of selected system. Then, a possible solution to control the input speed of the generator is proposed. In the end, a survey to 279 students who participate in the course project shows the importance of course project in cultivating their ability to apply knowledge in design.


Author(s):  
Wael A. Mokhtar

Project-Based Service-Learning (PBSL) offers a unique and rich educational experience for engineering students. The present work highlights some of its aspects through the discussion of a multi-level design and build project. A service project was assigned to two teams of junior and senior students. The project was to design and build a bubble tower for the local children’s museum. The tower was completed in two phases. In the first phase, it was assigned as a final project in a junior level course. In the second phase, another team of seniors was added to lead the design optimization and building of the tower as their capstone experience. The Service-Learning (SL) nature of the project and having two teams at different academic levels added challenges and benefits to the students. The details of this unique experience are discussed and samples from the students’ work are presented. The project was completed successfully with positive feedback from the students, the customer and the local community. Reflections about this project and recommendations for future use of similar SL are also presented.


2019 ◽  
Vol 10 (2) ◽  
pp. 1
Author(s):  
Reza Nazari ◽  
Md Salleh Bin Hj Hassan ◽  
Pooya Nazari ◽  
Saadat Parhizkar

This study designed to examine the relationship between television program pacing and aggressive behavior among primary school students in Iran. The study was conducted in two phases. The first phase consisted of a survey with 424 primary school students (aged 7-12 years) in the five provinces of Iran which were selected through a multi-stage random sampling of Iran. This survey investigated whether exposure to television program was related to children's use of media that explored using Buss – Perry standard questionnaire. The results revealed that 23% and 49% of the students displayed high and moderate aggression level respectively. A total of 22 programs were selected as the most favorite children’s TV programs which were assigned to a technical content analysis known as pacing in the second phase of study. The findings of the study showed that the highest pacing index was attributed to Pokemon (67.08), while Fetileh ranked as the lowest pacing index program (23.86). The results also revealed that TV program pacing scores were significantly and positively associated with aggression level of primary school children (p<0.05). The results of this study suggested the need for further attention on children’s television program production to protect them from antisocial behaviors.


1975 ◽  
Vol 42 (4) ◽  
pp. 141-144
Author(s):  
Carol Abelson ◽  
David Pfeiffer

This paper focuses on the particular communication needs of the non-verbal cerebral palsy child and describes several of the aids which have been developed to meet these specific and often highly individualized needs. A joint project was established through the combined efforts of the Occupational Therapy Department of the Montreal Shriners Hospital for Crippled Children and the McGill University Department of Engineering. Twenty-three undergraduate engineering students, as part of their mechanical design course requirement, undertook the design and implementation of communication aids for non-verbal handicapped children. The results of this project appear to indicate the value of a multi-disciplinary approach in confronting the variety of complex problems encountered in the clinical setting.


Author(s):  
Debashish Mohapatra ◽  
Subhransu Padhee ◽  
Surabhi Saxena ◽  
Bhaskar Patnaik

This study provides a project-based learning case study of the design of data acquisition module for the greenhouse system. The project-based learning environment is provided to the final year undergraduate engineering students where the students try to develop a prototype of a greenhouse system equipped with various sensors and actuators. The learning target is to develop a fully functional laboratory prototype of the greenhouse with sensors and actuators and perform data acquisition and data logging operations in the greenhouse. In addition to the development of hardware prototype, the students are encouraged to learn the theory and modeling aspects behind the problem. The result of the project-based learning approach has been encouraging since the students were able to design the working prototype of the greenhouse with basic control functionalities.


2015 ◽  
pp. 273-282
Author(s):  
I Komang Rusmariadi ◽  
I Ketut Rimpung

Abstrak:Penelitian pengembangan bahan ajar dalam bentuk jobsheet ini dilakukan dalam dua tahap. Tahap pertama adalah tahap pengembangan draft jobsheet di tahun 2014. Tahap kedua merupakan tahap implementasi di tahun 2015 dengan tujuan untuk mengetahui: (1) hasil penilaian ahli, dosen dan mahasiswa; (2) kendala-kendala selama uji coba; dan (3) kelayakan draf jobsheet sebagai bahan ajar praktik. Penelitian ini menggunakan model pengembangan Dick & Carey pada tahap review dan uji coba penelitian melibatkan 2 orang ahli, 6 orang dosen pengampu mata kuliah, dan 26 orang mahasiswa jurusan teknik mesin. Data diperoleh dengan menggunakan angket tertutup dan terbuka. Data yang terkumpul berupa tanggapan dan saran perbaikan dianalisis secara deskriptif kualitatif sedangkan data yang merupakan hasil penilaian terhadap jobsheet terpadu dianalisis secara deskriptif kuantitatif. Hasil pengujian menyatakan: (1) isi sangat layak (uji ahli); desain/media sangat layak (uji ahli, perorangan, kelomok kecil; uji lapangan layak (mahasiswa) dan sangat layak (dosen); (2) berdasarkan hasil uji isi dan desain hingga uji lapangan, ada beberapa komponen yang masih perlu direvisi. Dapat disimpulkan bahwa draf bahan ajar dinyatakan layak sebagai bahan ajar praktik. Penelitian ini hanya sampai pada tahap evaluasi formatif pada Jobsheet Praktik Pengujian Bahan dan Metrologi. Diharapkan dilakukan penelitian lebih lanjut untuk mengetahui efektifitasnya dalam upaya meningkatakan kompetensi mahasiswa.Kata Kunci: Pengembangan; jobsheet terpadu; praktik pengujian bahan dan metrologi; kompetensi; politeknikAbstract:This research on jobsheet learning material development was carried out in two phases. First phase was jobsheet drafting in 2014. The second phase was the implementation in 2015 with the objectives of knowing: (1) evaluation from the experts, lecturers, and students; (2) constraints during the trial test; and 3) feasibility of the jobsheet draft as practical learning material. This research applied the development model of Dick & Carey in review phase and involved 2 experts, 6 respective lecturers, as well as 26 mechanical engineering students in the trial test. The data were collected through close and open questionnaires. Response and recommendation data were analyzed with descriptive qualitative method, whereas the data of evaluation on the integrated jobsheet were analyzed with descriptive quantitative method. The testing resulted in: (1) content was highly feasible (by expert); design/media was very feasible (experts, individuals, small groups); field trial test was feasible (students) and very feasible (lecturers); (2) based on the results of the whole test, there were some components that still needed to be improved. It can be concluded that the learning material draft was feasible to become practical learning materials. This research was carrioud out only up to the phase of formative evaluation on the Material and Metrology Test Practical Jobsheet. Further research is expected to know the effectiveness of it in enhancing the students’ competence.Keywords: Development; integrated jobsheet; material and metrology test practice; competence; polytechnic


Author(s):  
Max Ullrich ◽  
David S. Strong

How undergraduate engineering students define their success and plan for their future differs notably amongst students. With a push for greater diversity and inclusion in engineering schools, it is valuable to also better understand the differences in these areas among different students to allow institutions to better serve the needs of these diverse groups.  The purpose of this research study is to explore students’ definition of success both in the present and projecting forward 5 to 10 years, as well as to understand to what level students reflect on, and plan for, the future. The proposed survey instrument for the pilot stage of this research includes 56 closed-ended questions and 3 open-ended questions. Evidence for the validity of the research instrument is established through a mixed-method pilot study. This paper will discuss the survey instrument, the pilot study, and outline plans for the full study.


2018 ◽  
Vol 1 (1) ◽  
pp. 236-247
Author(s):  
Divya Srivastava ◽  
Rajitha B. ◽  
Suneeta Agarwal

Diseases in leaves can cause the significant reduction in both quality and quantity of agricultural production. If early and accurate detection of disease/diseases in leaves can be automated, then the proper remedy can be taken timely. A simple and computationally efficient approach is presented in this paper for disease/diseases detection on leaves. Only detecting the disease is not beneficial without knowing the stage of disease thus the paper also determine the stage of disease/diseases by quantizing the affected of the leaves by using digital image processing and machine learning. Though there exists a variety of diseases on leaves, but the bacterial and fungal spots (Early Scorch, Late Scorch, and Leaf Spot) are the most prominent diseases found on leaves. Keeping this in mind the paper deals with the detection of Bacterial Blight and Fungal Spot both at an early stage (Early Scorch) and late stage (Late Scorch) on the variety of leaves. The proposed approach is divided into two phases, in the first phase, it identifies one or more disease/diseases existing on leaves. In the second phase, amount of area affected by the disease/diseases is calculated. The experimental results obtained showed 97% accuracy using the proposed approach.


Author(s):  
Paulo César Antonini de Souza ◽  
Derick Trindade Bezerra

ResumoTendo por campo de investigação o Festival da América do Sul Pantanal (FASP) em 2018, na cidade de Corumbá (Brasil), objetiva-se identificar a materialidade e conceitos que permeiam as manifestações artísticas bidimensionais nesta região de fronteira, a partir da percepção de artistas da Bolívia. A pesquisa se organizou em duas fases: na primeira foi realizado um levantamento em plataformas online de produções acadêmicas em artes visuais, com foco no trabalho bidimensional, utilizando os descritores “arte popular” e “estética latina” resultando em três artigos. Na segunda fase foram selecionados dois trabalhos de uma artista da Bolívia, participante da mostra “Conexão Santa Cruz”, realizada durante o FASP 2018, que foram analisados em seus níveis representacional e simbólico. Pela interpretação das imagens foi possível construir uma leitura sobre a perspectiva da artista a respeito de suas condições culturais dentro da ordenação social em que se encontra situada.Palavras-chave: Artes Visuais. Arte Popular. Arte Regional. América Latina. Representation and symbolism: visual arts on the Brazil/Bolivia frontierAbstractHaving as research field the Festival da América do Sul Pantanal (FASP) in 2018, in the city of Corumbá (Brazil), the objective is to identify the materiality and concepts that permeate the two-dimensional artistic manifestations in this border region, from the perception of artists from Bolivia. The research was organized in two phases: in the first, a survey was carried out on online platforms of academic productions in visual arts, focusing on two-dimensional work, using the descriptors “arte popular” and “estética latina” resulting in three articles. In the second phase, two works were selected by an artist from Bolivia, participating in the exhibition “Conexão Santa Cruz”, held during FASP 2018, which were analyzed at their representational and symbolic levels. Through the interpretation of the images, it was possible to construct a reading on the artist’s perspective regarding her cultural conditions within the social order in which she is located.Keywords: Visual Arts. Folk Art. Regional Art. Latin America.Representación y simbolismo: artes visuales en la frontera de Brasil/BoliviaResumenTeniendo como campo de investigación el Festival de Sudamérica Pantanal (FASP) en 2018, en la ciudad de Corumbá (Brasil), el objetivo es identificar la materialidad y conceptos que permean las manifestaciones artísticas bidimensionales en esta región fronteriza, desde la percepción de artistas de Bolivia. La investigación se organizó en dos fases: en la primera, se realizó una encuesta en plataformas online de producciones académicas en artes visuales, con foco en el trabajo bidimensional, utilizando los descriptores “arte popular” y “estética latina” dando como resultado tres artículos. En la segunda fase, dos obras fueron seleccionadas por un artista de Bolivia, participante de la exposición “Conexão Santa Cruz”, realizada durante FASP 2018, que fueron analizadas en sus niveles representativos y simbólicos. A través de la interpretación de las imágenes, fue posible construir una lectura sobre la perspectiva de la artista sobre sus condiciones culturales dentro del orden social en el que se ubica.Palabras clave: Artes Visuales. Arte Popular. Arte Regional. América Latina.


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