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When Its "Drying Time Again"
J.
Edward Hardin, P.E.
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.
The student must take a
multiple-choice quiz consisting of twenty (20) questions at the end of
this course to obtain PDH credits.
Specific Knowledge or Skill Attained
This course teaches the following specific knowledge and
skills:
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Common
misconceptions about drying
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Dry bulb, wet bulb
and the psychrometric chart
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Dryer sealing
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Rotary cylinder type
dryers
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Rotary tumble dryers
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Tray type dryers
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Screw dryers
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Flash dryers
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Fluid bed dryers
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Augmented dryers
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Treatment of dryer
off-gassing
Course
Click on the links
below to hear the audio for the course When Its "Drying Time Again" prior to taking the quiz for PDH
credit.
Audio
When Its Drying Time Again - Tape 1, Side 1 (40.3 MB)
When Its Drying Time Again - Tape 1, Side 2 (39.7 MB)
When Its Drying Time Again - Tape 2, Side 1 (38.1 MB)
When Its Drying Time Again - Tape 2, Side 2 (17.6 MB)
Below is a link to some reference material that
the author has provided to supplement the course.
When Its Drying Time Handout (125 KB)
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 Its Drying Time - Transcript of Audio Course (126 KB)
To obtain PDH credits for this course, you will need to take a quiz for
credit. Click on the link below.
(To take the quiz,
your web browser must be set to accept cookies. See how to
check your cookie settings.)
 
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