ENERGY SAVING 4.0
It has become almost common to say that leak detection on a compressed air system can mean big money! Who hasn't seen these tags indicating the presence of a leak in a system? And then? Well, nothing ... because of the lack of a proper action plan.
And yet ... this task, well-executed, taking into account "detection and repair" should be an absolute priority when we know that leaks "consume" 30 to 40 prosenttia of the volume of air produced! These figures speak for themselves, a planned leak localization strategy is essential because it contributes directly to the reduction of the carbon footprint and allows substantial money savings. But why then, you may ask, is this subject still relevant? Why do things not change easily in the field? Because the people involved do not set up a proper battle plan that includes purchase, training, detecting, and repair.
The use of an ultrasonic detector is the most common way to locate a leak. This tool is inexpensive, intuitive thanks to its listening capabilities, and easy to use. It has been recognized for its quality/performance ratio for many years, as long as it complies with a few basic principles: detecting is good, but locating and measuring accuracy is better. Because measuring is also knowing, and because the digital age allows it, free and paid applications have been created. They allow the reporting and in some cases the calculation of approximate gains of a leak localization campaign. More recently, acoustic cameras have appeared on the market. More expensive, they are also more practical to use and allow detection at a very long-range as well as the visualization of a leak on a color screen, in the best case.
The range of solutions is wide! So what are people waiting for?
In fact, whether it is the service providers or the maintenance technicians, the most important work to be done is not so much locating the leaks but rather issuing a clear report allowing the team in charge of fixing the leaks, sources of revenue loss, to take quick and effective action. The rest is a matter of repetition and communication:
- Very often a compressed air system is solicited 24 hours a day and if "leakage that disappears equals saving money", sooner or later other leaks will appear on the system. It is, therefore, essential to carry out several leak detections during the year.
- Internal communication of the overall gains made thanks to these localizations will help to valorize them. Good internal communication allows other departments to become aware of the situation and to value the preventive contribution of the maintenance technician who will no longer be seen as the fireman on duty who disrupts production.
In summary, the failure to implement an effective plan to reduce energy costs related to compressed air waste is not the fault of technology. It offers effective solutions, within the reach of all budgets, big or small.
The real problem lies, as is often the case, in the will to implement a sustainable plan, including leak detection AND a documented worksheet. In short, another story of corporate culture, one that involves the bottom and the top, and vice versa!
For a major water supplier in England, Riventa have been monitoring a hydro-turbine to see if its maximum possible electrical output was being maintained.
During my 16-year career with the Royal Netherlands Air Force, I learned and experienced that having the right spare parts available or not affects the availability of technical systems. Aircraft stood still at Volkel Air Base due to a shortage of spare parts, while those in Kleine-Brogel in Belgium (68 km south) were in stock. For so-called consumables, I exchanged parts monthly with my Belgian colleagues. As a result, we solved each other's shortages and improved the availability of spare parts and thus the deployability of the aircraft.