Hydraulic Filtration

How to Perform a Cold Corrosion Test for Cylinder Oil

How to Perform a Cold Corrosion Test - assets needed - Parker KIttiwakeThe oil used to lubricate the cylinders of large 2-stroke marine diesel engines has to contend with high temperatures and acidic products formed during the combustion of sulphur-rich bunker oils.

Cylinder oil is used on a continuous loss basis. In recent times ship operators have taken to running engines at reduced speeds (so-called slow steaming) as a means of improving fuel consumption.

Unfortunately, slow steaming is accompanied by a drop in engine temperature which allows acid to build up on the cylinder liners thereby promoting their “cold corrosion”. The iron compounds formed by this process are then flushed from the engine by the cylinder oil. This leads to excessive liner wear, requiring expensive replacement. The iron found in used cylinder oil samples typically exists in various forms, each one having its own particular properties. For example, metallic iron particles worn off the cylinder liner by cat fines exhibit strong ferromagnetism and may be detected.  There are cold corrosion test kits to aid in this condition monitoring process.

 

Performing cold corrosion test 

 

How to Perform a Cold Corrosion Test - contents of kit - Parker KittiwakeTo perform a Parker Kittiwake cold corrosion test you will require the following: 

  • The sample of your cylinder scraped down oil. 
  • One millilitre syringe. 
  • Comparator and color wheel. 
  • Two cuvettes 
  • Reagents One, Two and Three 
  • Pouring lid for each reagent bottle

 

 

Step 1

How to Perform a Cold Corrosion Test - Step 1 - Parker KittiwakeFirst, fill both sample vials to the five-millilitre graduation line with Reagent One.

 

 

 

 

 

Step 2

HOw to perform cold corrosion testing Step 2 - Parker Kittiwake

Prepare your cylinder scrape down oil sample with some gentle agitation for approximately 30 seconds. Using the syringe, add 0.2-millilitres of the sample to each of the cuvettes.

 

 

 

 

Step 3

How to Perform a Cold Corrosion Test Step 3 - Parker KittiwakeFill, one of your cuvettes to the 10-millilitre graduation line with Reagent Two and the other with Reagent Three. Be sure both cuvettes are capped, secured and shake vigorously for approximately 30 seconds.

 

 

 

 

Step 4

Leave for four and a half minutes for the layers to settle out. 

 

Step 5

Insert the color wheel into theHow to Perform a Cold Corrosion Test - Step 5 - Parker Kittiwake comparator.  

Place the cuvette containing Reagent Two into the centermost slot and the cuvette with Reagent Three into the anterior-most slot. 

 

 

 

 

Step 6

How to Perform a Cold Corrosion Test Step 5 - Parker KittiwakeRotate the color wheel clockwise until the color of the anterior-most window matches that of the inner. 

 

 

 

 

 

Step 7

How to Perform a Cold Corrosion Test for Cylinder Oil- Step 7 - Parker KittiwakeRead the concentration figure in PPM directly from the wheel.

 

 

 

 

 

Watch the video to follow along with the steps:

 

Please visit parker.com/kittiwake  for more information.

 

Related articles:

Optimising Feed Rate in the Fight Against Cold Corrosion

The Importance of Condition Monitoring to Your Business

Fuel Switching: Monitoring to Prevent Damage

Fuel Monitoring Matters

Categories
Recent Posts by Author

How to Perform a Cold Corrosion Test for Cylinder Oil

The oil used to lubricate the cylinders of large 2-stroke marine diesel engines has to contend with high temperatures and acidic products formed during the combustion of sulphur-rich bunker...

Industrial Machine Vibration Analysis and Condition Monitoring

A condition monitoring system is concerned with the early detection of failure. Vibration monitoring systems, whether they use traditional techniques based on displacement or acoustic emission sensor...

Fuel Monitoring Matters

Whether you choose distillates, liquefied natural gas (LNG) or scrubbers to meet the new International Maritime Organization (IMO) fuel regulations in 2020, it will be even more critical to regularly...
Comments

Have a question about Parker products or services? We can help: Contact Us!

Comments for How to Perform a Cold Corrosion Test for Cylinder Oil


Please note that, in an effort to combat spam, comments with hyperlinks will not be published.

Leave a comment





Captcha