走向有意义的热力学学习:对《能源学》教学的建议

IF 3.5 2区 教育学 Q1 EDUCATION, SCIENTIFIC DISCIPLINES Education for Chemical Engineers Pub Date : 2023-07-01 DOI:10.1016/j.ece.2023.05.006
Martín N. Gatti , Federico M. Perez , Juliana López van der Horst , Florencia Volpe Giangiordano , Francisco Pompeo
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引用次数: 0

摘要

热力学研究能量的性质及其在系统之间存在和传递的形式。作为化学工程热力学课程的一部分,火能在开发和促进与节能有关的过程中起着重要作用。然而,对阿根廷许多大学化学工程学位的热力学和相关学科的分析显示,很少有课程将火能作为热力学教学课程的组成部分,而那些课程通常使用少数教科书来解决这个问题。从这个意义上说,化学工程热力学/物理化学教学的参考书目共有92本。其中,39本书出现在至少两个课程中,而其余53本书是不太知名的书籍,只被一个课程引用。在39本最广泛使用的书中,只有14本包含了能源的主题。另一方面,从热力学成绩的统计来看,学生对能的理解程度较低。在三个不同的评估实例中,考试结果显示出与主题理解相关的不同理论方面的不足,不合格率分别为60%,47%和21%。此外,不能解决能源问题或解决错误的学生的总百分比显著高于(>67%),而成功解决问题的比例(<20%)。在这项工作中,制定了一项关于《火能》教学的教学建议,考虑了热力学理论框架、语言和本质的学习轴。本建议旨在为教师提供服务,以促进化学工程学生对能量的有意义的学习。
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Towards the meaningful learning of thermodynamics: A proposal for teaching exergy

Thermodynamics studies the nature of energy and its forms of existence and transmission between systems. Exergy, as part of the Thermodynamics program in Chemical Engineering, plays a fundamental role in the development and promotion of processes related to energy saving. However, an analysis of the programs of Thermodynamics and related subjects for the Chemical Engineering degree in many Argentine universities revealed that there are few programs that include exergy as a component part of a Thermodynamics taught course, and those that do often use the few textbooks that address the subject. In this sense, a total of 92 textbooks have been counted as bibliography for the teaching of Thermodynamics/Physical Chemistry in Chemical Engineering. Out of that total, 39 books appear in at least two course programs, while the remaining 53 are less known books, and are cited by only one program. Of the 39 most widely used books, only 14 include the topic of exergy. On the other hand, the statistics of grades obtained by students in Thermodynamics indicate a low performance in the understanding of exergy. The results of exams showed deficiencies in different theoretical aspects related to the understanding of the topic with percentages of failure of 60%, 47% and 21% in three different evaluation instances. Moreover, the total percentage of students who could not solve the exergy problems or solved it with errors was significantly higher (> 67%) than the percentage of those who managed to solve it correctly (< 20%). In this work, a pedagogical proposal for the teaching of Exergy was formulated, contemplating the learning axes of the theoretical framework, the language and the nature of Thermodynamics. It is intended that this proposal serves teachers to promote a meaningful learning of exergy for Chemical Engineering students.

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来源期刊
CiteScore
8.80
自引率
17.90%
发文量
30
审稿时长
31 days
期刊介绍: Education for Chemical Engineers was launched in 2006 with a remit to publisheducation research papers, resource reviews and teaching and learning notes. ECE is targeted at chemical engineering academics and educators, discussing the ongoingchanges and development in chemical engineering education. This international title publishes papers from around the world, creating a global network of chemical engineering academics. Papers demonstrating how educational research results can be applied to chemical engineering education are particularly welcome, as are the accounts of research work that brings new perspectives to established principles, highlighting unsolved problems or indicating direction for future research relevant to chemical engineering education. Core topic areas: -Assessment- Accreditation- Curriculum development and transformation- Design- Diversity- Distance education-- E-learning Entrepreneurship programs- Industry-academic linkages- Benchmarking- Lifelong learning- Multidisciplinary programs- Outreach from kindergarten to high school programs- Student recruitment and retention and transition programs- New technology- Problem-based learning- Social responsibility and professionalism- Teamwork- Web-based learning
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