scholarly journals Purpose in Thermodynamics

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 408
Author(s):  
Adrian Bejan ◽  
George Tsatsaronis

This is a review of the concepts of purpose, direction, and objective in the discipline of thermodynamics, which is a pillar of physics, natural sciences, life science, and engineering science. Reviewed is the relentless evolution of this discipline toward accounting for evolutionary design with direction, and for establishing the concept of purpose in methodologies of modeling, analysis, teaching, and design optimization. Evolution is change after change toward flow access, with direction in time, and purpose. Evolution does not have an ‘end’. In thermodynamics, purpose is already the defining feature of methods that have emerged to guide and facilitate the generation, distribution, and use of motive power, heating, and cooling: thermodynamic optimization, exergy-based methods (i.e., exergetic, exergoeconomic, and exergoenvironmental analysis), entropy generation minimization, extended exergy, environomics, thermoecology, finite time thermodynamics, pinch analysis, animal design, geophysical flow design, and constructal law. What distinguishes these approaches are the purpose and the performance evaluation used in each method.

Author(s):  
LARRY LEIFER ◽  
SHERI SHEPPARD

The intellectual content and social activity of engineering product development are a constant source of surprise, excitement, and challenge for engineers. When our students experience product-based-learning (PBL), they experience this excitement (Brereton et al., 1995). They also have fun and perform beyond the limits required for simple grades. We, their teachers, experience these things too. Why, then, are so few students and faculty getting the PBL message? How, then, can we put the excitement back in engineering education? In part, we think this is because of three persistent mistakes in engineering education:1. We focus on individual students.2. We focus on engineering analysis versus communication between engineers.3. We fail to integrate thinking skills in engineering science and engineering practice.


Author(s):  
Dina Ahmed Kamel ◽  
Mamdouh Ayad Gadalla ◽  
Fatma Hanafy Ashour

Chemical processes are energy intensive industries; the majority of energy consumed in industrial processes is mainly used for heating and cooling requirements. This results in increasing the interest in obtaining the optimum design of the heat exchanger networks to reduce the energy consumption and face the growing energy crises. Most of the published literature over the last fifty years promotes the process integration technology as a main part of the process system engineering science. Graphical Pinch Analysis method normally includes two key steps, firstly obtaining the energy targets which include the minimum energy required for the HEN design, then designing the heat exchanger network (HEN). This paper introduces a new graphical approach for the design of new heat exchanger networks (HENs) based on pinch analysis rules. The HEN is represented on a simple graph, where the cold stream temperatures are plotted on the X-axis while the driving forces for each exchanger are plotted on the Y-axis. This graphical technique can describe the energy analysis problems in term of temperature driving force inside the heat exchanger, which is an important factor in the design process as the differences in these driving forces are involved in calculating the area of heat exchangers, and consequently affecting the cost.


Author(s):  
Jeffrey R. Mountain

Design across the curriculum has been a cornerstone of mechanical engineering education for well over a decade. The movement was an attempt to balance the tendency of most programs to over-emphasize engineering science. Over the course of that decade, many public universities have undergone a 7%–10% reduction in the number of credits required for graduation; usually in response to legislative pressure or competitive market conditions. In some instances, these reductions were not reflected in the general education content. Although the number of technical electives within the curriculum may have been reduced, seldom have they been completely omitted. Engineering science is considered the analytical foundation upon which new knowledge and engineering design are based. In addition, new frontiers in mechatronics, nanotechnology and alternative energy sources are becoming “must teach” subjects so that the discipline can evolve. The indication is that the “Design Across the Curriculum” concept either is, or will soon be in decline. This paper will present some historical perspective, a small sample of both common “solutions,” and a few unique approaches for maintaining design across the curriculum. The primary objective, however, is to initiate a dialog among engineering educators to begin to address the balance between engineering science and engineering design.


Mathematics ◽  
2018 ◽  
Vol 6 (12) ◽  
pp. 310 ◽  
Author(s):  
Fiza Zafar ◽  
Alicia Cordero ◽  
Juan Torregrosa

Finding a repeated zero for a nonlinear equation f ( x ) = 0 , f : I ⊆ R → R has always been of much interest and attention due to its wide applications in many fields of science and engineering. Modified Newton’s method is usually applied to solve this kind of problems. Keeping in view that very few optimal higher-order convergent methods exist for multiple roots, we present a new family of optimal eighth-order convergent iterative methods for multiple roots with known multiplicity involving a multivariate weight function. The numerical performance of the proposed methods is analyzed extensively along with the basins of attractions. Real life models from life science, engineering, and physics are considered for the sake of comparison. The numerical experiments and dynamical analysis show that our proposed methods are efficient for determining multiple roots of nonlinear equations.


PLoS Biology ◽  
2015 ◽  
Vol 13 (3) ◽  
pp. e1002110 ◽  
Author(s):  
Nate J. Cira ◽  
Alice M. Chung ◽  
Aleksandra K. Denisin ◽  
Stefano Rensi ◽  
Gabriel N. Sanchez ◽  
...  

Author(s):  
Lisa Romkey ◽  
Nikita Dawe ◽  
Rubaina Khan

The Division of Engineering Science at the University of Toronto offers a complex, multidisciplinary undergraduate program, commonly known as "EngSci”. We are in the first of a multi-year project titled ROLE (Realigning Outcomes with Learning Experiences), designed to proactively realign curriculum, pedagogy, students, and brand with our program goals. The first step in this process is to understand the state of Engineering Science as an academic discipline more broadly, and to better understand its role in the broader engineering and science landscape.  To better understand the discipline, we have used the academic plan model to compare eight engineering science programs from around the globe. The academic plan model supports the identification of internal and external factors that shape academic programs and frames the academic plan itself as seven related components that make up curriculum. Utilizing public-facing documentation such as websites and grey literature, we compared the IESC (International Engineering Science Consortium) programs and found differences in fundamental curriculum content, sub-disciplinary foci, organizational structure, and sources of external influence.  Concurrently, we conducted a workshop with members from the IESC to facilitate dialogue on the state of the discipline. This workshop resulted in a number of interesting artifacts, documenting the perspective of the participants. Some key themes that emerged included a strong focus on fundamentals and first principles; a focus on non-traditional and rapidly developing sub-disciplines, using the notion that Engineering Science can act as an “incubator” for new disciplines; and a diversity of views on the relationship between science and engineering within Engineering Science programs.  Finally, the paper paves a way forward for the next phase of the work, which involves interviewing program faculty and alumni to further understand perceptions of the discipline and the positioning of the discipline in the broader science and engineering landscape. 


Author(s):  
Stuart Palmer ◽  
Karen Young

Drawing on the work-integrated learning (WIL) literature, particularly that which is STEM-related (science, technology, engineering, and mathematics), and on the Australian census data, it was found that many Australian engineering and science graduates from Generation Y (and prior) work outside of their fields of study, and that many of them will have had to if they wished to work at all. For Generation Z (and beyond) students, it is proposed that a broader conception of WIL in science and engineering is needed if they are going to be adequately prepared for post-graduation employment. This chapter details a program example of how an out of field WIL placement, offered as an elective unit, can be implemented for engineering, science (and other contexts) without requiring major changes to existing curricula. This chapter also contributes to the very limited existing literature on out-of-field WIL.


2015 ◽  
Vol 712 ◽  
pp. 3-8 ◽  
Author(s):  
Małgorzata Stojek ◽  
Jacek Pietraszek

Since “Seldom have so many independent studies been in such agreement: simulation is a key element for achieving progress in engineering and science” [National Science Foundation (NSF) Blue Ribbon Panel Report on Simulation-Based Engineering Science: Revolutionizing Engineering Science through Simulation (NSF Press, May 2006)], we attempt to outline briefly new 21st century computational challenges and their potential impact on our future. We present not only the progress in computational science and engineering and/or cyberinfrastructure, but also the necessary steps to overcome the existing educational, cultural and organizational obstacles as well. The authors identify themselves with presented ideas, which have already been expressed in the past (e.g. in different position papers and reports on research directions formulated during discussion panels and workshops organized, among others, by WTEC [Information on http://wtec.org/reports.htm]).


Owing to an error made by the authors, Ghasem G Nasr, Amir Nourian, Tom Goldberg and Greig Tulloch, the authorship listing for the following article is incorrect. The name of Andrew J Yule was omitted: Ghasem G Nasr, Amir Nourian, Tom Goldberg and Greig Tulloch Next generation of consumer aerosol valve design using inert gases Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science November 2015; 229: 2952–2976, first published on 17 November 2014 as doi: 10.1177/0954406214559998 The correct author listing should be as follows: Amir Nourian1, Ghasem G Nasr1, Andrew J Yule1, Tom Goldberg2 and Greig Tulloch2 Next generation of consumer aerosol valve design using inert gases Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science November 2015; 229: 2952–2976, first published on 17 November 2014 as doi: 10.1177/0954406214559998 1Spray Research Group (SRG), Physics and Materials Research Centre (PMRC), School of Computing, Science and Engineering (CSE), University of Salford, Salford, Manchester, UK 2The Salford Valve Company Ltd (Salvalco), Technology House, Salford, Manchester, UK


2014 ◽  
Vol 711 ◽  
pp. 352-357 ◽  
Author(s):  
Yong Qiu ◽  
Fa Yuan Wei ◽  
Jia Li ◽  
Rui Song Jiang

Engineering science is bridge of fundamental science and engineering. This paper introduces origin, growth and figuration of engineering science by examining its history, and defines it as science-based engineering theory, or science-abstracted engineering theory by comparing concepts related. Finally, roles, which engineering science play for a nation, are discussed including increasing productivity, providing solutions for national security, and advancing science and technology. The authors suggest more recognition of fundamental science, talent cultivation from Chinese perspective.


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