The continuous distillation experiment in the Unit Operations Lab was moved to a virtual platform. Students used old data and equipment specifications to simulate the column in Aspen HYSYS. Students experimented without the limitations of existing equipment. For example, they studied the number of trays in the virtual column, something that is…

A virtual catalytic reactor laboratory (VCRL) experiment, which can be used in most browsers, is described. Students select feed conditions and use the VCRL to take data for a gas-phase catalytic reaction and fit kinetic parameters to a Langmuir-Hinshelwood rate expression. The VCRL contains instructions, equipment descriptions, an animated…

This paper reports an innovative, hybrid teaching model for a junior level lab course. This model leverages in-person lab operation by adding a student-led online learning mode. Both course outcomes and student outcomes were evaluated. Student feedback was collected, and its analysis showed both positive and negative impacts in this hybrid model.…

Most undergraduate mass transfer and separation courses cover the design of distillation columns, and many undergraduate laboratories have distillation experiments. In many cases, the treatment is restricted to simple column configurations and simplifying assumptions are made so as to convey only the basic concepts. In industry, the analysis of a…

In this project, we explore the use of threshold concept theory as a design basis for development of Interactive Virtual Laboratories in thermodynamics. Thermodynamics is a difficult subject for chemical and biological engineering students to master. One reason for the difficulty is the diverse and challenging set of threshold concepts that they…