Mixing Theory

In a practice-based case, students design and select mixing equipment.


Below is a description for the Mixing module. The module itself will open in a new window, but it might be convenient to print this page (see page bottom).
The demo requires a recent browser (Mozilla, Opera, or Internet Explorer) with the Flash plugin and the Java plugin.

Start the module

Tour description

This module is designed to train the student in theory about mixed bioreactors and the scaleup of mixed bioreactors. This module is used in working lectures, but can be used by individual students as well. Usually the students have lecture notes with theory while making this module. This theory is also available in the so called library section of the module.

You are set in the role of junior consultant. Some helpfull people in the company will guide you through your tasks.

  • Click question 1.

You meet your roommate.

  • Move the mouse over your roommate to see the question he asks you.

The first question is a introduction question. The question is easy, and will hopefully make students feel a bit confident. For the convenience of the demo, all the questions have been answered already, so you can easily navigate to all questions in the module using the navigation on the left side.

  • Select 5 minutes have passed and I have still no clue. Help! and click Answer

Whenever an answer is given, the user will get feedback. If a question is answered wrong multiple times, the amount of feedback will increase. After several wrong answers the correct answer will be given. A user will, therefore, never get stuck in a module.

  • Click the question why mix in the navigation on the left.

This is a typical multiple answer question.

  • Click That Means in the navigation on the left.

As you can see here, also the correct answer will be followed with feedback, explaining why this answer was correct.

The feedback in these questions is highly rewarded by students. We often see that, after having answered the question correctly, they select the other answers as well, just to see what feedback is given.

  • Move your mouse to the top right, over navigation. A popup is shown, and in the popup you can see the link library. Click this link, a new window will open.

In the library window, you see a navigation tree on the left, and the content on the right. In the navigation view you can see that different documents have different icons. A green icon means the document should be easy for you, an orange icons is neutral, and a red icon means the document might be too hard.

  • In the navigation view, click the following page:   

Library Home -> Operations -> Mixing -> Characterization of mixing

This is a typical content page in the library. As you can see, some words are grey instead of black. If you move the mouse over such a word, an explanation is given, and sometimes a translation of the word into Dutch. Lower on the same page, you can see an animation that explains mixing intensity and mixing time.

  • Click Play to start the animation.   
  • In the navigation view, click the following page:

    Library Home -> Operations -> Mixing -> Estimation of power consumption

This is again a typical content page. If you move the mouse over an equation on this page, you will get an explanation of all the symbols used in the equation. This functionality is also highly rewarded by students, because it gives them overview in the large number of symbols used in process engineering.

This is the end of the Mixing module demo. Feel free to explore other pages not part of this demo tour.