Development of basic thermodynamics workshops integrating a cubic equations of state simulator and MATLAB Grader courses

Abstract

This paper describes the development of EoS Simulator, a cubic equations of state simulator created in the MATLAB R2022b App Designer platform, which aims to be a practical digital tool for chemical engineering students that facilitates the solution, analysis, and critical thinking about thermodynamic problems. In the simulator, numerical algorithms were implemented based on a theoretical framework, such as fugacity test, bracketing methods, and the calculation of residual properties. EoS Simulator can estimate two-phase envelopes, isobars, isotherms, and surfaces related to PTVHS properties. MATLAB Grader courses were proposed to test student learning using the software in two different workshops. The evaluation was based on the achievement of tasks related to intended learning outcomes. Survey responses about the simulator and learning environment were collected, concluding that most students improved their skills in understanding thermodynamics phenomena, but some improvements are necessary for future versions of the software and online courses.