Chemical Engineering @ UP wiki - User contributions [en]

T12 & T13 Ball On Cylinder Lubricity Evaluator (BOCLE) & Scuffing Load - Ball On Cylinder Lubricity Evaluator (SL-BOCLE)

2017-11-29T11:44:05Z

Andrew Sakyi: /* 2017 */

[[File:IMG 4455.JPG|400px|Right|thumb|BOCLE(Left) & SL-BOCLE(Right)]]

Both the Ball On Cylinder Lybricity Evaluator (BOCLE) and the Scuffing Load - Ball On Cylinder
Lubricity Evaluator work on the principle of testing the lubricity of a fuel/lubricant. A non-rotating
ball is forced against a rotating cylinder. The cylinder is partially immersed in a bath of the fuel to
allow the fuel to be constantly carried to the area of contact.

The BOCLE & SL-BOCLE machines operate on much the same principals. They are nearly identically
constructed. They differ in: 
1) The types of fuels they typically test. 
2) The qualifying parameters and test methods (See ASTM link below). 
3) The maximum load they can carry. 
 

The BOCLE is a wear test. A microscope and camera is used to quantify the size of the wear scar and record the appearance.

The SL-BOCLE is a load carrying capacity test. A series of loads are applied until a sudden
change in the friction coefficient is observed (higher than 0.175). This load is used to characterize
the lubricity behaviour of the fluid. 
Note the suggested loading sequence in the operating manual.

[[File:IMG 4440.JPG|400px|right|thumb|Ball,Ring & Bath]]

In this Table some basic differences are presented:

[[File:BOCLE table 2.jpg]]

Both units are operated via a simulink interfaces found on the PC next to the units (Univ PC nr: 766118).

== Documentation ==

=== User Manual ===
A single user manual exists for both machines.
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20User%20Manual.pdf click here]
=== ASTM Standards ===
BOCLE (ASTM D5001)
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/ASTM%20D5001%20BOCLE.PDF click here]
 
SL-BOCLE (ASTM D6078)
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/ASTM%20D6078%20SLBOCLE.PDF click here]

=== MSDS of relevant Chemicals ===
Acetone
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Acetone.pdf click here]
 
Isooctane
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Isooctane.pdf click here]
 
Isopropyl alcohol
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Isopropyl%20alcohol.pdf click here]
 
Reference fuels (A&B)
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Ref%20fuels.doc click here]

=== Wiring, Flow & Instrumentation diagrams ===
Overall wiring diagram 
BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20overall2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20overall22012.vsd VISIO] 
SL-BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20overall2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20overall22012.vsd VISIO]

Detailed Opto wiring diagram 
BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20wiring2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20wiring22012.vsd VISIO] 
SL-BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20wiring2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20wiring22012.vsd VISIO] 

Piping diagram (Air flow)
Identical for both
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20piping%20diagram.pdf click here]

== History of this Equipment ==
The equipment was recieved from Sasol in 2012 after being used there for a period of time.
The equipment was conntected to the OPTO 22 network in 2012 by Jacques Langenhoven to allow data
logging and control through the lab network and OPTO system.

However after series of renovations in the Tribology lab over a space of 5 years (2012-2017), the instruments fell out of use.
They became redundant and several parts and wiring were lost or no longer functional.
In 2017 much work was done by Andrew Sakyi to reinstate both machines into good working conditions and communication to the OPTO system was established.

== Current/Previous projects ==

=== 2012 ===
Jacques Langenhoven, '''The commissioning of the BOCLE & SL-BOCLE in the Tribology lab''' 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20report2012.pdf PDF] 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20report22012.doc MS WORD]

=== 2017 ===
Andrew Sakyi, '''Reconditioning of the SL-BOCLE and BOCLE Instrument.''' 
[http://chemeng.up.ac.za/wiki/index.php/Special:ListFiles Final Report document] 
[http://chemeng.up.ac.za/wiki/index.php/Special:ListFiles Laboratory Report document]

T12 & T13 Ball On Cylinder Lubricity Evaluator (BOCLE) & Scuffing Load - Ball On Cylinder Lubricity Evaluator (SL-BOCLE)

2017-11-29T11:42:03Z

Andrew Sakyi: /* 2017 */

T12 & T13 Ball On Cylinder Lubricity Evaluator (BOCLE) & Scuffing Load - Ball On Cylinder Lubricity Evaluator (SL-BOCLE)

2017-11-29T11:40:35Z

Andrew Sakyi: /* 2017 */

T12 & T13 Ball On Cylinder Lubricity Evaluator (BOCLE) & Scuffing Load - Ball On Cylinder Lubricity Evaluator (SL-BOCLE)

2017-11-29T11:37:27Z

Andrew Sakyi: /* 2017 */

T12 & T13 Ball On Cylinder Lubricity Evaluator (BOCLE) & Scuffing Load - Ball On Cylinder Lubricity Evaluator (SL-BOCLE)

2017-11-29T11:36:22Z

Andrew Sakyi: /* 2017 */

File:Final Report Reconditioning of the SL-BOCLE and BOCLE instrument.pdf

2017-11-25T11:03:40Z

Andrew Sakyi: Andrew Sakyi uploaded a new version of File:Final Report Reconditioning of the SL-BOCLE and BOCLE instrument.pdf

File:Final Report Reconditioning of the SL-BOCLE and BOCLE instrument.docx

2017-11-25T10:51:31Z

Andrew Sakyi:

File:Lab Report Reconditioning of the SL BOCLE and BOCLE Instruments.pdf

2017-11-25T10:45:28Z

Andrew Sakyi:

File:Final Report Reconditioning of the SL-BOCLE and BOCLE instrument.pdf

2017-11-25T10:43:51Z

Andrew Sakyi:

T12 & T13 Ball On Cylinder Lubricity Evaluator (BOCLE) & Scuffing Load - Ball On Cylinder Lubricity Evaluator (SL-BOCLE)

2017-11-25T10:42:46Z

Andrew Sakyi: /* 2017 */

T12 & T13 Ball On Cylinder Lubricity Evaluator (BOCLE) & Scuffing Load - Ball On Cylinder Lubricity Evaluator (SL-BOCLE)

2017-11-25T10:42:21Z

Andrew Sakyi: /* 2017 */

[[File:IMG 4455.JPG|400px|Right|thumb|BOCLE(Left) & SL-BOCLE(Right)]]

Both the Ball On Cylinder Lybricity Evaluator (BOCLE) and the Scuffing Load - Ball On Cylinder
Lubricity Evaluator work on the principle of testing the lubricity of a fuel/lubricant. A non-rotating
ball is forced against a rotating cylinder. The cylinder is partially immersed in a bath of the fuel to
allow the fuel to be constantly carried to the area of contact.

The BOCLE & SL-BOCLE machines operate on much the same principals. They are nearly identically
constructed. They differ in: 
1) The types of fuels they typically test. 
2) The qualifying parameters and test methods (See ASTM link below). 
3) The maximum load they can carry. 
 

The BOCLE is a wear test. A microscope and camera is used to quantify the size of the wear scar and record the appearance.

The SL-BOCLE is a load carrying capacity test. A series of loads are applied until a sudden
change in the friction coefficient is observed (higher than 0.175). This load is used to characterize
the lubricity behaviour of the fluid. 
Note the suggested loading sequence in the operating manual.

[[File:IMG 4440.JPG|400px|right|thumb|Ball,Ring & Bath]]

In this Table some basic differences are presented:

[[File:BOCLE table 2.jpg]]

Both units are operated via a simulink interfaces found on the PC next to the units (Univ PC nr: 766118).

== Documentation ==

=== User Manual ===
A single user manual exists for both machines.
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20User%20Manual.pdf click here]
=== ASTM Standards ===
BOCLE (ASTM D5001)
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/ASTM%20D5001%20BOCLE.PDF click here]
 
SL-BOCLE (ASTM D6078)
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/ASTM%20D6078%20SLBOCLE.PDF click here]

=== MSDS of relevant Chemicals ===
Acetone
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Acetone.pdf click here]
 
Isooctane
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Isooctane.pdf click here]
 
Isopropyl alcohol
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Isopropyl%20alcohol.pdf click here]
 
Reference fuels (A&B)
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Ref%20fuels.doc click here]

=== Wiring, Flow & Instrumentation diagrams ===
Overall wiring diagram 
BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20overall2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20overall22012.vsd VISIO] 
SL-BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20overall2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20overall22012.vsd VISIO]

Detailed Opto wiring diagram 
BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20wiring2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20wiring22012.vsd VISIO] 
SL-BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20wiring2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20wiring22012.vsd VISIO] 

Piping diagram (Air flow)
Identical for both
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20piping%20diagram.pdf click here]

== History of this Equipment ==
The equipment was recieved from Sasol in 2012 after being used there for a period of time.
The equipment was conntected to the OPTO 22 network in 2012 by Jacques Langenhoven to allow data
logging and control through the lab network and OPTO system.

However after series of renovations in the Tribology lab over a space of 5 years (2012-2017), the instruments fell out of use.
They became redundant and several parts and wiring were lost or no longer functional.
In 2017 much work was done by Andrew Sakyi to reinstate both machines into good working conditions and communication to the OPTO system was established.

== Current/Previous projects ==

=== 2012 ===
Jacques Langenhoven, '''The commissioning of the BOCLE & SL-BOCLE in the Tribology lab''' 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20report2012.pdf PDF] 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20report22012.doc MS WORD]

=== 2017 ===
Andrew Sakyi, Reconditioning of the SL-BOCLE and BOCLE Instrument.

T12 & T13 Ball On Cylinder Lubricity Evaluator (BOCLE) & Scuffing Load - Ball On Cylinder Lubricity Evaluator (SL-BOCLE)

2017-11-25T10:41:10Z

Andrew Sakyi: /* 2017 */

T12 & T13 Ball On Cylinder Lubricity Evaluator (BOCLE) & Scuffing Load - Ball On Cylinder Lubricity Evaluator (SL-BOCLE)

2017-11-25T10:36:31Z

Andrew Sakyi: /* Current/Previous projects */

T12 & T13 Ball On Cylinder Lubricity Evaluator (BOCLE) & Scuffing Load - Ball On Cylinder Lubricity Evaluator (SL-BOCLE)

2017-11-25T10:35:07Z

Andrew Sakyi:

T12 & T13 Ball On Cylinder Lubricity Evaluator (BOCLE) & Scuffing Load - Ball On Cylinder Lubricity Evaluator (SL-BOCLE)

2017-11-25T10:31:39Z

Andrew Sakyi: /* History of this Equipment */

[[File:IMG 4455.JPG|400px|Right|thumb|BOCLE(Left) & SL-BOCLE(Right)]]

Both the Ball On Cylinder Lybricity Evaluator (BOCLE) and the Scuffing Load - Ball On Cylinder
Lubricity Evaluator work on the principle of testing the lubricity of a fuel/lubricant. A non-rotating
ball is forced against a rotating cylinder. The cylinder is partially immersed in a bath of the fuel to
allow the fuel to be constantly carried to the area of contact.

The BOCLE & SL-BOCLE machines operate on much the same principals. They are nearly identically
constructed. They differ in: 
1) The types of fuels they typically test. 
2) The qualifying parameters and test methods (See ASTM link below). 
3) The maximum load they can carry. 
 

The BOCLE is a wear test. A microscope and camera is used to quatify the size and record the appearance.

The SL-BOCLE is a load carrying capacity test. A series of loads are applied until a sudden
change in the friction coefficient is observed (higher than 0.175). This load then represents
some of the lubricity behaviour. 
Note the suggested loading sequence in the operating manual.

[[File:IMG 4440.JPG|400px|right|thumb|Ball,Ring & Bath]]

In this Table some basic differences are presented:

[[File:BOCLE table 2.jpg]]

Both units are operated via a simulink interfaces found on the PC next to the units (Univ PC nr: 766118).

== Documentation ==

=== User Manual ===
A single user manual exists for both machines.
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20User%20Manual.pdf click here]
=== ASTM Standards ===
BOCLE (ASTM D5001)
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/ASTM%20D5001%20BOCLE.PDF click here]
 
SL-BOCLE (ASTM D6078)
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/ASTM%20D6078%20SLBOCLE.PDF click here]

=== MSDS of relevant Chemicals ===
Acetone
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Acetone.pdf click here]
 
Isooctane
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Isooctane.pdf click here]
 
Isopropyl alcohol
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Isopropyl%20alcohol.pdf click here]
 
Reference fuels (A&B)
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Ref%20fuels.doc click here]

=== Wiring, Flow & Instrumentation diagrams ===
Overall wiring diagram 
BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20overall2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20overall22012.vsd VISIO] 
SL-BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20overall2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20overall22012.vsd VISIO]

Detailed Opto wiring diagram 
BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20wiring2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20wiring22012.vsd VISIO] 
SL-BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20wiring2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20wiring22012.vsd VISIO] 

Piping diagram (Air flow)
Identical for both
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20piping%20diagram.pdf click here]

== History of this Equipment ==
The equipment was recieved from Sasol in 2012 after being used there for a period of time.
The equipment was conntected to the OPTO 22 network in 2012 by Jacques Langenhoven to allow data
logging and control through the lab network and OPTO system.

However after series of renovations in the Tribology lab over a space of 5 years (2012-2017), the instruments fell out of use.
They became redundant and several parts and wiring were lost or no longer functional.
In 2017 much work was done by Andrew Sakyi to reinstate both machines into good working conditions and communication to the OPTO system was established.

== Current/Previous projects ==

=== 2012 ===
Jacques Langenhoven, '''The commissioning of the BOCLE & SL-BOCLE in the Tribology lab''' 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20report2012.pdf PDF] 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20report22012.doc MS WORD]

T12 & T13 Ball On Cylinder Lubricity Evaluator (BOCLE) & Scuffing Load - Ball On Cylinder Lubricity Evaluator (SL-BOCLE)

2017-11-25T10:31:15Z

Andrew Sakyi: /* History of this Equipment */

[[File:IMG 4455.JPG|400px|Right|thumb|BOCLE(Left) & SL-BOCLE(Right)]]

Both the Ball On Cylinder Lybricity Evaluator (BOCLE) and the Scuffing Load - Ball On Cylinder
Lubricity Evaluator work on the principle of testing the lubricity of a fuel/lubricant. A non-rotating
ball is forced against a rotating cylinder. The cylinder is partially immersed in a bath of the fuel to
allow the fuel to be constantly carried to the area of contact.

The BOCLE & SL-BOCLE machines operate on much the same principals. They are nearly identically
constructed. They differ in: 
1) The types of fuels they typically test. 
2) The qualifying parameters and test methods (See ASTM link below). 
3) The maximum load they can carry. 
 

The BOCLE is a wear test. A microscope and camera is used to quatify the size and record the appearance.

The SL-BOCLE is a load carrying capacity test. A series of loads are applied until a sudden
change in the friction coefficient is observed (higher than 0.175). This load then represents
some of the lubricity behaviour. 
Note the suggested loading sequence in the operating manual.

[[File:IMG 4440.JPG|400px|right|thumb|Ball,Ring & Bath]]

In this Table some basic differences are presented:

[[File:BOCLE table 2.jpg]]

Both units are operated via a simulink interfaces found on the PC next to the units (Univ PC nr: 766118).

== Documentation ==

=== User Manual ===
A single user manual exists for both machines.
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20User%20Manual.pdf click here]
=== ASTM Standards ===
BOCLE (ASTM D5001)
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/ASTM%20D5001%20BOCLE.PDF click here]
 
SL-BOCLE (ASTM D6078)
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/ASTM%20D6078%20SLBOCLE.PDF click here]

=== MSDS of relevant Chemicals ===
Acetone
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Acetone.pdf click here]
 
Isooctane
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Isooctane.pdf click here]
 
Isopropyl alcohol
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Isopropyl%20alcohol.pdf click here]
 
Reference fuels (A&B)
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Ref%20fuels.doc click here]

=== Wiring, Flow & Instrumentation diagrams ===
Overall wiring diagram 
BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20overall2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20overall22012.vsd VISIO] 
SL-BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20overall2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20overall22012.vsd VISIO]

Detailed Opto wiring diagram 
BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20wiring2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20wiring22012.vsd VISIO] 
SL-BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20wiring2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20wiring22012.vsd VISIO] 

Piping diagram (Air flow)
Identical for both
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20piping%20diagram.pdf click here]

== History of this Equipment ==
The equipment was recieved from Sasol in 2012 after being used there for a period of time.
The equipment was conntected to the OPTO 22 network in 2012 by Jacques Langenhoven to allow data
logging and control through the lab network and OPTO system.

However after series of renovations in the Tribology lab over a space of 5 years (2012-2017), the instruments have fell out of use.
They became redundant and several parts and wiring were lost or no longer functional.
In 2017 much work was done by Andrew Sakyi to reinstate both machines into good working conditions and communication to the OPTO system was established.

== Current/Previous projects ==

=== 2012 ===
Jacques Langenhoven, '''The commissioning of the BOCLE & SL-BOCLE in the Tribology lab''' 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20report2012.pdf PDF] 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20report22012.doc MS WORD]

T12 & T13 Ball On Cylinder Lubricity Evaluator (BOCLE) & Scuffing Load - Ball On Cylinder Lubricity Evaluator (SL-BOCLE)

2017-11-25T10:27:25Z

Andrew Sakyi: /* History of this Equipment */

[[File:IMG 4455.JPG|400px|Right|thumb|BOCLE(Left) & SL-BOCLE(Right)]]

Both the Ball On Cylinder Lybricity Evaluator (BOCLE) and the Scuffing Load - Ball On Cylinder
Lubricity Evaluator work on the principle of testing the lubricity of a fuel/lubricant. A non-rotating
ball is forced against a rotating cylinder. The cylinder is partially immersed in a bath of the fuel to
allow the fuel to be constantly carried to the area of contact.

The BOCLE & SL-BOCLE machines operate on much the same principals. They are nearly identically
constructed. They differ in: 
1) The types of fuels they typically test. 
2) The qualifying parameters and test methods (See ASTM link below). 
3) The maximum load they can carry. 
 

The BOCLE is a wear test. A microscope and camera is used to quatify the size and record the appearance.

The SL-BOCLE is a load carrying capacity test. A series of loads are applied until a sudden
change in the friction coefficient is observed (higher than 0.175). This load then represents
some of the lubricity behaviour. 
Note the suggested loading sequence in the operating manual.

[[File:IMG 4440.JPG|400px|right|thumb|Ball,Ring & Bath]]

In this Table some basic differences are presented:

[[File:BOCLE table 2.jpg]]

Both units are operated via a simulink interfaces found on the PC next to the units (Univ PC nr: 766118).

== Documentation ==

=== User Manual ===
A single user manual exists for both machines.
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20User%20Manual.pdf click here]
=== ASTM Standards ===
BOCLE (ASTM D5001)
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/ASTM%20D5001%20BOCLE.PDF click here]
 
SL-BOCLE (ASTM D6078)
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/ASTM%20D6078%20SLBOCLE.PDF click here]

=== MSDS of relevant Chemicals ===
Acetone
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Acetone.pdf click here]
 
Isooctane
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Isooctane.pdf click here]
 
Isopropyl alcohol
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Isopropyl%20alcohol.pdf click here]
 
Reference fuels (A&B)
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/MSDS%20Ref%20fuels.doc click here]

=== Wiring, Flow & Instrumentation diagrams ===
Overall wiring diagram 
BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20overall2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20overall22012.vsd VISIO] 
SL-BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20overall2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20overall22012.vsd VISIO]

Detailed Opto wiring diagram 
BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20wiring2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20wiring22012.vsd VISIO] 
SL-BOCLE 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20wiring2012.pdf PDF]
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/SLBOCLE%20wiring22012.vsd VISIO] 

Piping diagram (Air flow)
Identical for both
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20piping%20diagram.pdf click here]

== History of this Equipment ==
The equipment was recieved from Sasol in 2012 after being used there for a period of time.
The equipment was conntected to the OPTO 22 network in 2012 by Jacques Langenhoven to allow data
logging and control through the lab network and OPTO system.

However after series of renovations in the Tribology lab over a space of 5 years (2012-2017), the instruments have fallen out of use.
They have become redundant and several parts and wiring are lost or no longer functional.
In 2017 much work was done to reinstate both machines into good working conditions by Andrew Sakyi.

== Current/Previous projects ==

=== 2012 ===
Jacques Langenhoven, '''The commissioning of the BOCLE & SL-BOCLE in the Tribology lab''' 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20report2012.pdf PDF] 
[ftp://ragnarok.up.ac.za/publicftp/lab/Tribology/New%20Folder/BOCLE%20report22012.doc MS WORD]