World Grain - December 2021 - 70

GRAIN OPERATIONS
TC bundle
Strain memeber
Over jacket
Figure 1.
ged, extremely stable, and highly accurate devices. Depending
on duty level (i.e., tensile strength) and customer preference,
sensor points are spaced 4 or 8 feet (1.2 or 2.4 meters) apart
on a digital sensing cable placed inside a sturdy outer tube.
This allows the temperature-sensing element to be retracted if
it needed to be replaced in the future.
The outer tube contains two co-extruded load-bearing steel
ropes. The cables must be manufactured to the correct lengths
and fitted with hanging hardware. Lead wire carries the thermistor
voltage signals to a multiplexing junction box that converts
analog into digital signals. From there, signals can be transferred
wirelessly to digital monitoring and fan control platforms.
Cable placement
Temperature cable manufacturers specify placement of cables
in the grain mass as a function of bin diameter. For example,
the installation manual of Boone Cable Works & Electronics,
Inc. (BCWE) specifies one cable in the center of a 20-foot
(6.1 meters) diameter silo, three evenly-spaced cables at a radius
of 9 feet (2.7 meters) in a 36-foot (11-meter) diameter bin
without a cable in the center, and four evenly-spaced cables
at a radius of 14 feet (4.3 meters) in a 42-foot (12.8-meter)
diameter bin with a fifth cable in the center.
OPIsystems Inc. recommends the same number and placement
of cables for bin diameters up to 42 feet (12.8 meters),
specifying that one cable in the center suffices for silos up to
a diameter of 24 feet (7.3 meters). For bin diameters of 60
feet (18.2 meters), BCWE specifies 11 cables with none in
the center, three placed evenly spaced at a radius of 8 feet (2.4
meters) and eight placed evenly spaced at a radius of 23 feet
(7.0 meters). That places the outer cables 7 feet (2.1 meters)
from the bin wall.
For the same bin diameter, OPI specifies eight cables with
one in the center and seven placed evenly spaced at a radius of
20 feet (6.1 meters). That places the outer cables 10 feet (3.0
meters) from the bin wall. For bin diameters of 90 feet (27.4
meters), BCWE specifies 18 cables with one in the center, six
placed evenly spaced at a radius of 18 feet (2.4 meters), and 11
placed evenly spaced at a radius of 35 feet (10.7 meters). That
places the outer cables 20 feet (6.1 meters) from the bin wall.
For the same bin diameter, OPI specifies 19 cables with one
in the center, six placed evenly spaced at a radius of 18 feet
(5.5 meters), and 12 placed evenly spaced at a radius of 36
feet (11 meters). That places the outer cables 18 feet (5.5 me70
December
2021 / World Grain / World-Grain.com
ters) from the bin wall. No explanation or supporting documentation
is provided by either company (nor other companies
that manufacture and/or sell temperature cables for that
matter) as to why in one case a cable placed in the center plus
seven 10 feet (3.0 meters) from the wall supposedly provides
temperature monitoring as effectively as three cables placed 8
feet (2.4 meters) from the center plus eight cables 7 feet (2.1
meters) from the wall in a 60-foot (18.2-meter) diameter bin.
Or, why in a 90-foot (27.4-meter) bin 11 cables placed 20 feet
(6.1 meters) from the wall supposedly provides temperature
monitoring as effectively as 12 cables placed 18 feet (5.5 meters)
from the wall.
Similarly unexplained is the claim by some temperature cable
providers that a temperature cable can monitor grain within
a radius of 9 feet (2.7 meters), or that certain temperature
cable placements will allow for monitoring certain volumetric
percentages of the grain mass.
The 9-foot (2.7-meter) radius claim appears to ignore the
vertical spacing of sensors that on typical cables is 6 to 8
feet (1.8 to 2.4 meters). Additionally, spherical monitoring
volumes cannot be efficiently packed into a cylindrical
grain mass with a coned peak. Some of the stored grain
mass not included in the volumes will not be monitored
at all, while some of the stored grain mass will be included
in overlapping volumes. This would imply that certain
overlapping grain volumes would be measured by multiple
A contrast between grain that is out of condition (top of photo)
and grain in good condition at the bottom of the photo.
Photo courtesy of TSGC Inc.
http://www.World-Grain.com

World Grain - December 2021

Table of Contents for the Digital Edition of World Grain - December 2021

World Grain - December 2021 - Intro
World Grain - December 2021 - 1
World Grain - December 2021 - 2
World Grain - December 2021 - 3
World Grain - December 2021 - 4
World Grain - December 2021 - 5
World Grain - December 2021 - 6
World Grain - December 2021 - 7
World Grain - December 2021 - 8
World Grain - December 2021 - 9
World Grain - December 2021 - 10
World Grain - December 2021 - 11
World Grain - December 2021 - 12
World Grain - December 2021 - 13
World Grain - December 2021 - 14
World Grain - December 2021 - 15
World Grain - December 2021 - 16
World Grain - December 2021 - 17
World Grain - December 2021 - 18
World Grain - December 2021 - 19
World Grain - December 2021 - 20
World Grain - December 2021 - 21
World Grain - December 2021 - 22
World Grain - December 2021 - 23
World Grain - December 2021 - 24
World Grain - December 2021 - 25
World Grain - December 2021 - 26
World Grain - December 2021 - 27
World Grain - December 2021 - 28
World Grain - December 2021 - 29
World Grain - December 2021 - 30
World Grain - December 2021 - 31
World Grain - December 2021 - 32
World Grain - December 2021 - 33
World Grain - December 2021 - 34
World Grain - December 2021 - 35
World Grain - December 2021 - 36
World Grain - December 2021 - 37
World Grain - December 2021 - 38
World Grain - December 2021 - 39
World Grain - December 2021 - 40
World Grain - December 2021 - 41
World Grain - December 2021 - 42
World Grain - December 2021 - 43
World Grain - December 2021 - 44
World Grain - December 2021 - 45
World Grain - December 2021 - 46
World Grain - December 2021 - 47
World Grain - December 2021 - 48
World Grain - December 2021 - 49
World Grain - December 2021 - 50
World Grain - December 2021 - 51
World Grain - December 2021 - 52
World Grain - December 2021 - 53
World Grain - December 2021 - 54
World Grain - December 2021 - 55
World Grain - December 2021 - 56
World Grain - December 2021 - 57
World Grain - December 2021 - 58
World Grain - December 2021 - 59
World Grain - December 2021 - 60
World Grain - December 2021 - 61
World Grain - December 2021 - 62
World Grain - December 2021 - 63
World Grain - December 2021 - 64
World Grain - December 2021 - 65
World Grain - December 2021 - 66
World Grain - December 2021 - 67
World Grain - December 2021 - 68
World Grain - December 2021 - 69
World Grain - December 2021 - 70
World Grain - December 2021 - 71
World Grain - December 2021 - 72
World Grain - December 2021 - 73
World Grain - December 2021 - 74
World Grain - December 2021 - 75
World Grain - December 2021 - 76
World Grain - December 2021 - 77
World Grain - December 2021 - 78
World Grain - December 2021 - 79
World Grain - December 2021 - 80
World Grain - December 2021 - 81
World Grain - December 2021 - 82
World Grain - December 2021 - 83
World Grain - December 2021 - 84
https://digital.world-grain.com/sosland/wg/world-grain-april-2024
https://digital.world-grain.com/sosland/wg/world-grain-march-2024
https://digital.world-grain.com/sosland/wg/world-grain-february-2024
https://digital.world-grain.com/sosland/wg/world-grain-january-2024
https://digital.world-grain.com/sosland/wg/world-grain-december-2023
https://digital.world-grain.com/sosland/wg/world-grain-november-2023
https://digital.world-grain.com/sosland/wg/world-grain-october-2023
https://digital.world-grain.com/sosland/wg/world-grain-september-2023
https://digital.world-grain.com/sosland/wg/world-grain-august-2023
https://digital.world-grain.com/sosland/wg/world-grain-july-2023
https://digital.world-grain.com/sosland/wg/world-grain-june-2023
https://digital.world-grain.com/sosland/wg/world-grain-may-2023
https://digital.world-grain.com/sosland/wg/world-grain-april-2023
https://digital.world-grain.com/sosland/wg/world-grain-march-2023
https://digital.world-grain.com/sosland/wg/world-grain-february-2023
https://digital.world-grain.com/sosland/wg/world-grain-january-2023
https://digital.world-grain.com/sosland/wg/world-grain-december-2022
https://digital.world-grain.com/sosland/wg/world-grain-november-2022
https://digital.world-grain.com/sosland/wg/world-grain-october-2022
https://digital.world-grain.com/sosland/wg/world-grain-september-2022
https://digital.world-grain.com/sosland/wg/world-grain-august-2022
https://digital.world-grain.com/sosland/wg/world-grain-july-2022
https://digital.world-grain.com/sosland/wg/world-grain-june-2022
https://digital.world-grain.com/sosland/wg/world-grain-may-2022
https://digital.world-grain.com/sosland/wg/world-grain-april-2022
https://digital.world-grain.com/sosland/wg/world-grain-march-2022
https://digital.world-grain.com/sosland/wg/world-grain-february-2022
https://digital.world-grain.com/sosland/wg/world-grain-january-2022
https://digital.world-grain.com/sosland/wg/world-grain-december-2021
https://digital.world-grain.com/sosland/wg/-world-grain-november-2021
https://digital.world-grain.com/sosland/wg/world-grain-october-2021
https://digital.world-grain.com/sosland/wg/world-grain-september-2021
https://digital.world-grain.com/sosland/wg/world-grain-august-2021
https://digital.world-grain.com/sosland/wg/world-grain-july-2021
https://digital.world-grain.com/sosland/wg/world-grain-june-2021
https://digital.world-grain.com/sosland/wg/world-grain-may-2021
https://digital.world-grain.com/sosland/wg/world-grain-april-2021
https://digital.world-grain.com/sosland/wg/world-grain-march-2021
https://digital.world-grain.com/sosland/wg/world-grain-february-2021
https://digital.world-grain.com/sosland/wg/2021_01_01
https://digital.world-grain.com/sosland/wg/2020_12_01
https://digital.world-grain.com/sosland/wg/2020_11_01
https://digital.world-grain.com/sosland/wg/2020_10_01
https://digital.world-grain.com/sosland/wg/2020_09_01
https://digital.world-grain.com/sosland/wg/2020_08_01
https://digital.world-grain.com/sosland/wg/2020_07_01
https://digital.world-grain.com/sosland/wg/2020_06_01
https://digital.world-grain.com/sosland/wg/2020_05_01
https://digital.world-grain.com/sosland/wg/2020_04_01
https://digital.world-grain.com/sosland/wg/2020_03_01
https://digital.world-grain.com/sosland/wg/2020_02_01
https://digital.world-grain.com/sosland/wg/2020_01_01
https://digital.world-grain.com/sosland/wg/2019_12_01
https://digital.world-grain.com/sosland/wg/2019_11_01
https://digital.world-grain.com/sosland/wg/2019_10_01
https://digital.world-grain.com/sosland/wg/2019_09_01
https://digital.world-grain.com/sosland/wg/2019_08_01
https://digital.world-grain.com/sosland/wg/2019_07_01
https://digital.world-grain.com/sosland/wg/2019_06_01
https://digital.world-grain.com/sosland/wg/2019_05_01
https://digital.world-grain.com/sosland/wg/2019_04_01
https://digital.world-grain.com/sosland/wg/2019_03_01
https://digital.world-grain.com/sosland/wg/2019_02_01
https://digital.world-grain.com/sosland/wg/2019_01_01
http://digital.world-grain.com/sosland/wg/2018_12_01
http://digital.world-grain.com/sosland/wg/2018_11_01
http://digital.world-grain.com/sosland/wg/2018_10_01
http://digital.world-grain.com/sosland/wg/2018_09_01
http://digital.world-grain.com/sosland/wg/2018_08_01
http://digital.world-grain.com/sosland/wg/2018_07_01
http://digital.world-grain.com/sosland/wg/2018_06_01
http://digital.world-grain.com/sosland/wg/2018_05_01
http://digital.world-grain.com/sosland/wg/2018_04_01
http://digital.world-grain.com/sosland/wg/2018_03_01
https://www.nxtbook.com/sosland/wg/2018_02_01
https://www.nxtbook.com/sosland/wg/2018_01_01
https://www.nxtbook.com/sosland/wg/2017_12_01
https://www.nxtbook.com/sosland/wg/2017_11_01
https://www.nxtbook.com/sosland/wg/2017_10_01
https://www.nxtbook.com/sosland/wg/2017_09_01
https://www.nxtbook.com/sosland/wg/2017_08_01
https://www.nxtbook.com/sosland/wg/2017_07_01
https://www.nxtbook.com/sosland/wg/2017_06_01
https://www.nxtbook.com/sosland/wg/2017_05_01
https://www.nxtbook.com/sosland/wg/2017_04_01
https://www.nxtbook.com/sosland/wg/2017_03_01
https://www.nxtbook.com/sosland/wg/2017_02_01
https://www.nxtbook.com/sosland/wg/2017_01_01
https://www.nxtbook.com/sosland/wg/2016_12_01
https://www.nxtbook.com/sosland/wg/2016_11_01
https://www.nxtbook.com/sosland/wg/2016_10_01
https://www.nxtbook.com/sosland/wg/2016_09_01
https://www.nxtbook.com/sosland/wg/2016_08_01
https://www.nxtbook.com/sosland/wg/2016_07_01
https://www.nxtbook.com/sosland/wg/2016_06_01
https://www.nxtbook.com/sosland/wg/2016_05_01
https://www.nxtbook.com/sosland/wg/2016_04_01
https://www.nxtbook.com/sosland/wg/2016_03_01
https://www.nxtbook.com/sosland/wg/2016_02_01
https://www.nxtbook.com/sosland/wg/2016_01_01
https://www.nxtbook.com/sosland/wg/2015_12_01
https://www.nxtbook.com/sosland/wg/2015_11_01
https://www.nxtbook.com/sosland/wg/2015_10_01
http://digital.world-grain.com/sosland/wg/2015_09_01
http://digital.world-grain.com/sosland/wg/2015_08_01
http://digital.world-grain.com/sosland/wg/2015_07_01
http://digital.world-grain.com/sosland/wg/2015_06_01
http://digital.world-grain.com/sosland/wg/2015_05_01
https://www.nxtbook.com/sosland/wg/2015_04_01
https://www.nxtbook.com/sosland/wg/2015_03_01
https://www.nxtbook.com/sosland/wg/2015_02_01
http://digital.world-grain.com/sosland/wg/2015_01_01
http://digital.world-grain.com/sosland/wg/2014_12_15
https://www.nxtbook.com/sosland/wg/2014_12_01
https://www.nxtbook.com/sosland/wg/2014_11_01
https://www.nxtbook.com/sosland/wg/2014_10_01
https://www.nxtbook.com/sosland/wg/2014_09_01
https://www.nxtbook.com/sosland/wg/2014_08_01
https://www.nxtbook.com/sosland/wg/2014_07_01
https://www.nxtbook.com/sosland/wg/2014_06_01
https://www.nxtbook.com/sosland/wg/2014_05_01
https://www.nxtbook.com/sosland/wg/2014_04_01
https://www.nxtbook.com/sosland/wg/2014_03_01
https://www.nxtbook.com/sosland/wg/2014_02_01
https://www.nxtbook.com/sosland/wg/2014_01_01
https://www.nxtbook.com/sosland/wg/2013_12_01
https://www.nxtbook.com/sosland/wg/2013_11_01
https://www.nxtbook.com/sosland/wg/2013_10_01
https://www.nxtbook.com/sosland/wg/2013_09_01
https://www.nxtbook.com/sosland/wg/2013_08_01
https://www.nxtbook.com/sosland/wg/2013_07_01
https://www.nxtbook.com/sosland/wg/2013_06_01
https://www.nxtbook.com/sosland/wg/2013_05_01
https://www.nxtbook.com/sosland/wg/2013_04_01
https://www.nxtbook.com/sosland/wg/2013_03_01
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https://www.nxtbook.com/sosland/wg/2012_12_01
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https://www.nxtbook.com/sosland/wg/2012_10_01
https://www.nxtbook.com/sosland/wg/2012_09_01
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https://www.nxtbook.com/sosland/wg/2012_02_01
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https://www.nxtbook.com/sosland/wg/2011_10_01
https://www.nxtbook.com/sosland/wg/20111_09_01
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https://www.nxtbook.com/sosland/wg/2011_06_01
https://www.nxtbook.com/sosland/wg/2011_05_01
https://www.nxtbook.com/sosland/wg/2011_04_01
https://www.nxtbook.com/sosland/wg/2011_03_01
http://digital.world-grain.com/sosland/wg/2011_02_01
http://digital.world-grain.com/sosland/wg/2011_02_01
http://digital.world-grain.com/sosland/wg/2011_02_01
http://digital.world-grain.com/sosland/wg/2011_01_01
http://digital.world-grain.com/sosland/wg/2010_12_01
http://digital.world-grain.com/sosland/wg/2010_11_01
http://digital.world-grain.com/sosland/wg/2010_10_01
http://digital.world-grain.com/sosland/wg/2010_09_01
http://digital.world-grain.com/sosland/wg/2010_08_01
http://digital.world-grain.com/sosland/wg/2010_07_01
http://digital.world-grain.com/sosland/wg/2010_06_01
http://digital.world-grain.com/sosland/wg/2010_05_01
http://digital.world-grain.com/sosland/wg/2010_04_01
http://digital.world-grain.com/sosland/wg/2010_03_01
http://digital.world-grain.com/sosland/wg/2010_02_01
http://digital.world-grain.com/sosland/wg/2010_01_01
http://digital.world-grain.com/sosland/wg/2009_12_01
http://digital.world-grain.com/sosland/wg/2009_11_01
http://digital.world-grain.com/sosland/wg/2009_10_01
http://digital.world-grain.com/sosland/wg/2009_09_01
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http://digital.world-grain.com/sosland/wg/2008_09_01
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http://digital.world-grain.com/sosland/wg/2008_04_01
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http://digital.world-grain.com/sosland/wg/2008_02_01
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http://digital.world-grain.com/sosland/wg/2007_09_01
http://digital.world-grain.com/sosland/wg/2007_08_01
http://digital.world-grain.com/sosland/wg/2007_07_01
http://digital.world-grain.com/sosland/wg/2007_06_01
http://digital.world-grain.com/sosland/wg/2007_05_01
http://digital.world-grain.com/sosland/wg/2007_04_01
http://digital.world-grain.com/sosland/wg/2007_03_01
http://digital.world-grain.com/sosland/wg/2007_02_01
http://digital.world-grain.com/sosland/wg/2007_01_01
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http://digital.world-grain.com/sosland/wg/2006_11_01
http://digital.world-grain.com/sosland/wg/2006_10_01
http://digital.world-grain.com/sosland/wg/2006_09_01
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http://digital.world-grain.com/sosland/wg/2006_06_01
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http://digital.world-grain.com/sosland/wg/2006_04_01
http://digital.world-grain.com/sosland/wg/2006_03_01
http://digital.world-grain.com/sosland/wg/2006_02_01
http://digital.world-grain.com/sosland/wg/2006_01_01
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http://digital.world-grain.com/sosland/wg/2005_11_01
http://digital.world-grain.com/sosland/wg/2005_10_01
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http://digital.world-grain.com/sosland/wg/2005_08_01
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http://digital.world-grain.com/sosland/wg/2005_06_01
http://digital.world-grain.com/sosland/wg/2005_05_01
http://digital.world-grain.com/sosland/wg/2005_04_01
http://digital.world-grain.com/sosland/wg/2005_03_01
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http://digital.world-grain.com/sosland/wg/2005_01_01
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http://digital.world-grain.com/sosland/wg/2004_11_01
http://digital.world-grain.com/sosland/wg/2004_10_02
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