Overview
Humans cannot live without water. But, water can be a burden when it permeates materials and processes where it doesn't belong. Contrary to popular belief, water doesn't just "ride along" on the surface of other materials. Most materials are permeable. Water permeates the material far beyond the surface. Thus, removing water can be quite a tricky proposition.
Fortunately, we don't have to reinvent the wheel when it comes to removing water from materials. Numerous drying processes have been developed and improved over the years to dry just about any material you can think of. This course will examine several of the drying processes available to the mechanical or process engineer.
This course is provided in two forms for your convenience. The course may be studied as a “podcast” or audio presentation. The included audio files can be downloaded to your iPod or other personal mp3 player or they can be streamed using your computer’s default audio player (such as Windows Media Player). A written transcription is also provided should you wish to read the material.
To receive PDH credit, the user must pass a multiple-choice quiz of 20 questions after listening to the audio files or reading the transcription of the course.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- Common misconceptions about drying
- Dry bulb, wet bulb and the psychrometric chart
- Dryer sealing
- Rotary cylinder type dryers
- Rotary tumble dryers
- Tray type dryers
- Screw dryers
- Flash dryers
- Fluid bed dryers
- Augmented dryers
Course
Click on the links below to hear the audio for the course When It's Drying Time Again prior to taking the quiz for PDH credit.
Audio
When It's Drying Time Again - Audio File 1
When It's Drying Time Again - Audio File 2
When It's Drying Time Again - Audio File 3
When It's Drying Time Again - Audio File 4
Here is a link to some reference material that has been provided by the author.
When It's Drying Time Again Handout
Text-based
In lieu of listening to the audio version, you can download a PDF of the transcript for this course below. Also, audio users may want to refer to the course transcript when answering the quiz questions.
When It's Drying Time Again - Transcript of Audio Course
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To receive PDH credit for this course, you must pass a multiple-choice quiz. Click the button below to Purchase Course and Take Quiz. To take the quiz, your computer must be set to accept cookies. See how to check your cookie settings.
