In this opinion piece we discuss the importance of maintaining an Asset Ecosystem, how to leverage the benefits of an asset maintenance system using industry best practices and assessing and identifying strategic assets you can apply a comprehensive asset maintenance strategy too.
Managing a modern asset ecosystem
Assets are not typically isolated, instead, each asset consists of a complex system of multiple components which are more often inter-related.
This hierarchical setup requires the ability to monitor, track, report, and execute work order activities based on an understanding of how one move will impact another —often with potentially far-reaching implications.
For example, a sudden drop in pressure in a gas holding tank can cause catastrophic failure and downtime. The source of the issue could originate from numerous steps in the production chain, including cracked pipes, inaccurate pressure readings, defective pumps or motors, and even faulty transformers or voltage regulators feeding power to the entire process.
Managing this asset ecosystem requires understanding how each asset works with the others, identifying indicators that help determine where a failure is located and acting to correct the problem.
Modern asset management systems provide EAM tools to help manage the ecosystem, including:
Trying to predict the future
With today's focus on reducing operational costs and increasing production, it is time to assess current procedures, re-evaluate your current asset management system and move to a more strategic system that incorporates predictive analysis practices.
All parts of a modern EAM tool work together that help improve the overall asset ecosystem, however building the maintenance program around these best practices should be your target.
In our previous editorial, we referenced five key stages in an energy company's asset management maturity process starting with the very basic stages and progressing to a comprehensive, enterprise-wide maintenance strategy.
In this editorial we reference the need to rely on five best practices in order that you achieve the goal of a ‘predictive maintenance strategy'.
The stages outlined in our earlier editorial provides a good indicator of where a company is in its asset management strategy, but the company must first understand the past and establish a performance baseline. For example, analysing benchmarks such as percentage of work that's planned versus breakdown related or reactive in nature.
These indicators should be further evaluated by equipment class or type to determine more accurate baselines and possibly even root causes of failures.
The company should also determine its proficiency in capturing and analysing asset data. The amount of data it can collect and analyse will form the foundation for the entire program and is often driven by the limitation of legacy systems.
More often, the information needed to drive decision-making and processes comes from multiple disparate sources including asset management and production systems.
The overall equipment effectiveness (OEE) metric, for example, ‘required availability information' comes from an asset management system, as well as ‘quality and capacity information' comes from a production system.
Likewise, production, maintenance requirements and labour planning schedules can reside in two or even three distinct systems, yet apply to the same asset equipment.
Today, all company's need a holistic view across their business enterprise. Disparate systems and data sources make driving greater efficiencies very difficult and limit decision-making. With the right system and accurate data, companies can develop a sense for how their asset portfolio is performing and where to invest additional budget. This ensures assets and asset performance are aligned with strategic business goals.
Every company that has a multi-plant operation should look at how well it's sharing best practices. They should also look at how well they are managing inventory and procurement processes across their facilities.
The questions you should be asking;
Answering these questions will help your organisation gauge how well its operation leverages industry best practice.
Unfortunately, asset and maintenance are typically thought of as a silo - one plant and location at a time. Instead, economies of scale can offer substantial cost savings if all assets are viewed across the business as one.
Predictive maintenance does not necessary apply to all assets. Instead, strategic assets should be identified as ones that directly impact revenue. A reactor is strategic if it is essential for producing product or output, for example, if its performance and availability affect output. In addition, production output should be a factor in determining the extent that equipment failure would lower revenue.
Failure of highly efficient production lines that operate with high output may be more tolerable to the business than stopping production lines that struggle to meet output requirements. All the above can also be determined by the environmental conditions in which the asset is operating.
Failures occur for different reasons and these vary by equipment, environment and operating requirements. A pump handling abrasive slurries may suffer excessive vibration before experiencing bearing and seal failure, while excessive energy consumption may signal wear and tear problems in another pump. Trends and patterns can be discovered by looking at the history of the asset, its performance, combined with failure studies and reference cases. Institutional knowledge and your own experience is also key.
In addition, the company's most important strategic assets could be monitored for multiple indicators to minimise failure.
Assets are not typically isolated, instead most assets consist of a complex system of other components. Components are likely to have a relationship with other assets that must also be monitored, tracked, and reported across the business. But don't be fooled by false positives. Relating high material usage variances to excessive energy consumption in equipment could be a false positive, for example, the use of extra energy could stem from poor material or formula quality and wouldn't serve as a leading indicator of an equipment performance problem.
Time to action, based on real-time Scada data is instrumental to an effective predictive maintenance plan. Maintaining a dated method of sorting through data is inefficient and may provide poor analysis because of the time lag. Plus, manual review and analysis takes staff away from performing maintenance and creates a backlog of activities.
Automating the process allows the company to take immediate action based on real-time data analysis.
The right analytical tools can help identify issues and trends quickly. Analysis that can be derived from EAM software that includes trending algorithms can pinpoint problems, filter false alarms, immediately notify asset owners, and adapt to ever-changing conditions. EAM software helps drive industry standards and good asset management practices. In contrast to systems that only captures performance information and reports for an engineer to sift through for answers). A strategic EAM solution that supports real-time analysis will take you many steps forward.
In our slurry pump example, pump performance data (e.g. electrical consumption) is automatically analysed for predetermined trends. For example, a 10% or more excess energy consumption for more than 60 minutes resulted in significantly higher operating costs. In this situation, any modern EAM system would alert key stakeholders and for them to act when specific performance issues are found or where non-conformities exist.
An alert can be in the form of a prescriptive set of steps (e.g. a 12-point inspection work order plan) that pertains to the pump's condition that guides the engineer through the diagnosis, repair, and restore process or something as simple as an email.
Furthermore, industry leading EAM systems can assess situations in real-time, including identifying stalled work orders, issuing alerts to escalate matters, ensure work is completed, or enforce regulation and safety compliance.
An asset management program must be continually measured and refined to achieve best analytical results. This ensure it scale to cover additional assets and business processes. To do this, the company should identify the best opportunities for improvement and monitoring the most critical plant. The impact of process change across the program must be evaluated, not just at one data point relating to a single asset.
With today's leaner supply chains and reduced safety stocks, the company must be able to minimise time taken to correct issues and increase equipment availability.
While there are many different approaches to these measurements, from OEE to MTBF and energy efficiency, there is no single “Holy Grail” for measurement. The company must find one or a combination of several approaches that best meets its respective needs.
Energy efficiency is often overlooked as part of most company's asset management practices. Indeed, measuring energy efficiency is one of the best-kept secrets about predicting asset failure.
Energy consumption can actually indicate, well in advance of a failure, that a problem is developing or already exists.
In our earlier example, the complex nature of identifying the cause of a change in pressure and monitoring energy usage of each asset can indicate which asset is either drawing too little or too much energy. By identifying a start point for inspections, this will often lead you immediately to the problem area.
An added benefit is asset sustainability, the combination of asset and energy demand management in one system. It has been shown that asset sustainability will lower energy consumption by up to 20% across an entire operation or facility.
By measuring the consumption of each asset, companies can identify which equipment is drawing more power than the manufacturer specification. This alert can generate a chain reaction to determine why the asset isn't performing at its optimum, giving rise to the opportunity for correcting it.
We use the following example,
“It is assumed that a single 100-hp motor running continuously at 95% efficiency for five years should consume approximately £350,000 in energy (at 10¢/kWh). If the same motor develops a minor problem, and is not detected by traditional inspections or monitoring, and consumes just 5% more energy, it will cost almost £17,500 more to operate.
The problem is pervasive. Most organisations will incur significant added expense by continuing to operate assets whose energy consumption has increased. When integrated with an enterprise asset management (EAM) system, alerts can be triggered when energy consumption or efficiency reaches a pre-determined threshold, and alerts can be assigned to each asset. The alert can initiate a case-management incident requiring inspection. In some cases, the energy consumption indicator can serve as a warning signal for a larger issue that could impact production if it isn't caught early enough.
For those oil and gas companies, and those in renewable energies (solar, wind-farm energy, gas peaking and bio-generation), failure isn't an option. Simply translated, this means loss of profit and typically increased operating costs.
Capital assets and operational efficiency dictate economic return and this determines the success of your business. Today's asset management involves more than balancing asset performance with asset longevity. Energy companies across the spectrum must employ predictive maintenance techniques for their most strategic assets. In addition, they must consider energy efficiency to develop a comprehensive strategy that eliminates unplanned downtime and reduces operational costs along with asset inefficiencies.
For you to learn more about building and maintaining an Asset Ecosystem, why don't you talk to the experts.
TouchstoneEnergy are on-hand to discuss any aspect of your asset maintenance strategy and will provide you with EAM system recommendations, implemented using best industry practices.
TouchstoneEnergy are leading providers of Infor's world-class business software. They are dedicated to the Energy sector and have business software for every role in the enterprise, from Finance and Accounting to Procurement, Inventory and Asset Management, Business Intelligence, Financial Planning and Business Process Management. You can find out more about them at their websites: https://www.touchstoneenergy.co.uk/ and https://www.touchstoneenergyusa.com/
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