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首页> 外文期刊>International Journal of Mechanical Engineering Education >A Matlab program for the determination of thermodynamic properties of steam
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A Matlab program for the determination of thermodynamic properties of steam

机译：Matlab程序，用于确定蒸汽的热力学性质

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摘要

An introductory course in thermodynamics seeks to acquaint students with the laws of thermodynamics and to enable them to analyze energy transformations in various engineering systems. The latter requires knowledge of temperature and possibly pressure-dependent thermodynamic properties of the materials involved. These are often made available to students in tabular or graphical form. This work presents a computer program that allows for a more convenient determination of thermodynamic properties of steam at a given state. The MATLAB graphical user interface is based on correlations of the properties from a published source. The development process presents a learning opportunity for the student involved and the various equations and program structure are documented in a user manual that allows the user to gain further insight into the computer-generated thermodynamic data. The program is evaluated by comparing predicted values of thermodynamic properties with the corresponding values from thermodynamic tables and it is found that the quantities are generally well predicted to within an average difference of less than a percent It is further demonstrated how the program can be used to solve a textbook problem on the Rankine cycle. This program has the potential to enrich the learning experience in thermodynamic classes for chemical and mechanical engineering students.
机译：热力学入门课程旨在使学生熟悉热力学定律，并使他们能够分析各种工程系统中的能量转换。后者需要了解所涉及材料的温度以及可能与压力相关的热力学性质。这些通常以表格或图形形式提供给学生。这项工作提出了一种计算机程序，可以更方便地确定给定状态下蒸汽的热力学性质。 MATLAB图形用户界面基于已发布资源中属性的相关性。开发过程为参与的学生提供了学习机会，各种方程式和程序结构记录在用户手册中，使用户可以进一步了解计算机生成的热力学数据。通过将热力学性质的预测值与热力学表中的相应值进行比较，可以评估该程序，发现该程序通常可以很好地预测其平均偏差小于百分之一的平均值。解决朗肯循环上的教科书问题。该计划有可能丰富化学和机械工程专业学生在热力学课程中的学习经验。

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