A look at the entire system can systematically save energy
Optimizing every single pump for energetic efficiency pays off – no doubt about it. A look at the entire system, however, may reveal additional potentials that would have been lost if you had only looked at details. Europump, the European Society of Pump Manufacturers, has now introduced ways of using the system approach to increase the efficiency of pump systems.
Energy costs make up the largest portion of the lifetime costs of a pump. Operating companies are, therefore, well advised not to simply select the transporting unit with the lowest procurement costs. On a long-term basis, it pays off to procure a pump that is precisely tailored to its application. When selecting the perfectly matching component for fluid handling, the PUMPselector from Star Pump Alliance provides help. Besides the optimized dimensioning of the transporting unit, it may be beneficial to operating companies to take a look at the entire system as well. The potentials of the system approach for increasing energy efficiency have now been pointed out by Europump. In this context, the European Society of Pump Manufacturers specifically refers to the ErP Directive of the European Union.
Optimization potentials in the terrawatt range
The set of rules known as the eco-design directive predominantly refers to the efficiency of products from the consumer environment as well as in the industry. Its objective is to gradually eliminate products with low efficiency from the market. However, this approach would not be sufficient for helping total systems to achieve the highest possible efficiency, as Europump criticizes. Instead, Europump calls for an inspection of the entire pump system with sufficient time and technical knowledge. This is a resource-intensive process, but one that can pay off in the long-term: Based on Europump’s own estimates, it would be possible to lower the energy consumption of pump systems across Europe by up to 50 terrawatt hours.
To satisfy the demand of increasing the efficiency of a pump system using a system approach, Europump considers it necessary to define a target from the beginning. This is based on the flow rates to be achieved by the system since the property of every component depends primarily upon this requirement: from the size of pipe systems up to the motors used. Next, operating companies have to determine the minimum amount of energy and compare it with the actual energy spent.
Efficiency increase at all levels
This allows not only the determination of the efficiency of every transporting unit, but also the indication at which points losses beyond the individual component occur. In the end, the optimizations that can be achieved in this way benefit the environment, climate and also the operating company, since every percent of energy that is not used translates to a cash benefit. Users who are interested in learning more about the potentials of the system approach will find valuable information on the website of Europump.
The EU energy label refers to the energy consumption of components. A look at the entire system may also be worthwhile.