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Dear Aziz,

First you need to take a survey of critical oil wetted parts in your plant and then categorize those equipment as per type of equipment/Application(Ex. Gear box, turbine, Hydraulic system, Compressors , Engine Etc.). Design a Oil analysis test slate (Different equipment needs different oil tests and 70-75% tests are common for all equipment). Oil condition( Visual, Color, Visc @40degc -standard, Visc@100degc-optional, VI-optional, % Moisture- Standard, AN( Total acid Number)- Standard, Foaming characteristics- Optional based on application, Demulsibility- Optional, RBOT/RPOVT- optional for oxidation, Patch colirometri( Varnish potential)- For turbines. )) Machine wear- Elemental analysis- Spectroscopy- ICP is standard, Ferrography(DR Ferrography- Analytical ferrography)-Optional, FTIR- standard for engines and optional for othes, Contamination- Particle counting or patch test- standard. Most of these tests are ASTM standard. Establish a frequency. Most critical 1M to 3M(mostly 3M) & Less critical (3M to 6M). if you want to establish a lab of your own purchase start with basic instruments or else optional is contact Oil analysis service provider with ISO-17025 accreditation .Now a days oil suppliers also provide oil testing as a complimentary.(Some people have reservations about the conflict of interest).

 

Regards,

Prdip

RM
pradeep.gangu posted:

Dear Aziz,

First you need to take a survey of critical oil wetted parts in your plant and then categorize those equipment as per type of equipment/Application(Ex. Gear box, turbine, Hydraulic system, Compressors , Engine Etc.). Design a Oil analysis test slate (Different equipment needs different oil tests and 70-75% tests are common for all equipment). Oil condition( Visual, Color, Visc @40degc -standard, Visc@100degc-optional, VI-optional, % Moisture- Standard, AN( Total acid Number)- Standard, Foaming characteristics- Optional based on application, Demulsibility- Optional, RBOT/RPOVT- optional for oxidation, Patch colirometri( Varnish potential)- For turbines. )) Machine wear- Elemental analysis- Spectroscopy- ICP is standard, Ferrography(DR Ferrography- Analytical ferrography)-Optional, FTIR- standard for engines and optional for othes, Contamination- Particle counting or patch test- standard. Most of these tests are ASTM standard. Establish a frequency. Most critical 1M to 3M(mostly 3M) & Less critical (3M to 6M). if you want to establish a lab of your own purchase start with basic instruments or else optional is contact Oil analysis service provider with ISO-17025 accreditation .Now a days oil suppliers also provide oil testing as a complimentary.(Some people have reservations about the conflict of interest).

 

Regards,

Prdip

thanks in advance prdip .

RM

Aziz offers some good advice. If you are using a commercial lab they can lend their expertize to your endeavor. Most have standard test slates that cover the different tests depending on the type of equipment. Your lubricant supplier is also a good source of knowledge and experience especially the major suppliers. If money is not an issue (?) the best way to get an effective program started is to have an expert come in and do a survey and setup the program for you. This eliminates quite a few of the growing pains and wasted time, money and effort. I feel if your lubrication program is big enough it is money well spent.

RM
aziz58 posted:

dear all

i am looking for standard guide to establish oil condition monitoring group in our oil and gas refinery .

any help will be appreciated 

thanks 

Hi Aziz,

You can use the following standard:

- API 614 for your lube oil system

- ASTM D4378, for lubrication condition monitoring of your Turbines

- ASTM D6224, for the other various rotating equipment.

Good luck,

RM

Online Oil Condition Monitoring is conducted as an extension of the routine condition monitoring procedures. It can help provide accurate and meaningful information on the lubricant as well as the overall health of the asset.

Listed below is the functionality of a standard oil condition monitoring system.

1) Oil analysis sensors measure the oil’s dielectric constant. These sensors provide alerts as the oil degrades or becomes contaminated.

2) These sensors then measure optical characteristics and compare them to model conditions.

3) Oil sensors are placed near the asset or on the asset that is being monitored. Keep in mind that continuous oil analysis might not be possible when monitoring machines in extreme conditions.

4) Oil analysis can effectively measure and monitor mechanical faults, slow rotating machinery, vibrating, or noisy environments, assets that are driven by direct current, and a single motor that is driving multiple machines.

RM

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