Sea Technology

AUG 2017

The industry's recognized authority for design, engineering and application of equipment and services in the global ocean community

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44 st / August 2017 indicate equipment deterioration and contribute to further internal abrasion of the hydraulic line. In these tests, it is important to account for the hours the oil has been used. Under normal conditions, this number, measured in parts per million (ppm), will rise over time. In an offshore example, data were gathered on the use of an EAL in an offshore drilling platform hydraulic power unit, indicating that the level of iron and copper never ap- proached the caution threshold during all measured hours of operation using HF 46 HP. Don't Be Afraid to Ask About Cost. Oil analysis is a great tool, and if it prevents equipment breakdown and purchasing replacement parts, then it is even more valu- able. But how much does oil analysis cost, and can you afford it? The costs can vary from manufacturer to manu- facturer and laboratory to laboratory. Some manufacturers, such as RSC Bio Solutions, offer low-cost or no-cost oil analysis as a value-added service to their customers. There is no reason not to start this type of program, one that will allow you to gain important data from your fleet and op- erations. Use the Data. The return on investment in your oil anal- ysis program is directly proportional to the actions taken based on the oil sample results. Failing to take appropriate maintenance actions when the oil sample clearly indicates a situation that requires a correction reduces the ROI of your lubrication program. Most sample report recommendations are straightfor- ward and are designed to consider the cost-benefit ratio of the maintenance action. Before carrying out a sample re- port recommendation, ensure that it is practical and cost- effective. It's important to be sure that your maintenance staff understands the requirements and responsibilities and has the authority and support to carry out recommenda- tions. Consult with the analyst to discuss the recommenda- tion and potential alternatives. Where to Start If you are not doing proactive and detailed oil analysis, the best way to start is to contact your lubricant vendor to determine how they can help and what they recommend. At RSC Bio Solutions, we work closely with customers to set up a program unique to their needs and continue to make recommendations based on regular results. Benjamin Franklin once said, "An ounce of prevention is worth a pound of cure." The same rings true when it comes to equipment lubrication. Preventative maintenance is less expensive than replacing parts and having your equipment out of commission. Approach your oil analysis like you would a business partnership, and find someone that is just as invested in your success as you are. ST The synthetic ester product then completely breaks down at 26,500 hr., passing the condemning limit of 4.0 units. Water Contamination. Water contamination in a fluid can cause detrimental effects to a system. The ingress of water in the system can cause an acid number to increase and fluid viscosity to change. The increase of acid in the system can cause wear on the system. During oil analysis, the fluid is tested for water. A Karl Fischer titration method is used (ASTM D6304) to find the amount of water in the fluid. If the amount of water determined is greater than 1,000 ppm, a recommendation is made to remove the ex- cess water through normal separating methods (i.e., centri- fuge, water separator or decantation). Synthetic ester products, for example, are produced by catalyzing fatty acid chains with alcohols and acids. Intro- ducing water particles and heat to a synthetic ester fluid will reverse these chemical reactions, reforming both acid and alcohol, which, as previously covered, will not only contribute to general aging and weakening of the fluid's structure, but also enable corrosion and deteriorate seals. By contrast, leading EAL manufacturers have found that HEPRs (hydraulic environmental polyalfaolefin and related hydrocarbons), composed of readily biodegradable hydro- carbon, do not have the same properties as esters, making them less susceptible to hydrolytic instability and break- down. Element Particle Content. To test for the elemental con- tent in fluid samples, particularly the levels of wear metals such as iron (Fe) and copper (Cu), many analysis laborato- ries employ forms of magnetic and spectrometer testing. High concentrations of wear metals in a hydraulic circuit Dr. Bernard C. Roell, Jr. is the vice president of re- search and development at RSC Bio Solutions. He brings more than 25 years of R&D, business devel- opment and general management experience. Over his career, he has led process improvement teams, managed technology groups and run business units for Lubrizol, Ciba Specialty Chemicals and Hough- ton, and has deep experience with a wide range of industrial lubricant applications. Roell holds both a B.A. and a B.S. degree from Lock Haven University, as well as a doctorate in organic chemistry from Ohio University. Li-Ion Batteries • Highest capacity, reliability, safety • Your power source for subsea, AUV, ROV A d d e d Va l u e • MIL-STD, API17, ISO 13628 approved • IPC class 3 production • Customizing and personal support pCO 2 Analyzer • Auto-calibration & cleaning SubCtech GmbH pCO 2 Analyzer OceanPack™ FerryBox Subsea Sensors AUV Batteries Battery Systems Ocean Engineering

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