Aircraft or Bicycle - Efficiency Element No.1: Design

Aircraft or Bicycle - Efficiency Element No.1: Design

What is the most efficient way to get to my destination: a bicycle or a long-haul flight? This question only makes sense when you know the location and the route. Traveling to a far-off vacation destination and just picking up a couple of things from the store are not quite the same thing. This example may seem a little extreme, but it is not too dissimilar to the question regarding the efficiency of a vacuum supply. Depending on the application, very different vacuum pumps can provide the perfect result. The operating principle and design play key roles.

Bikes and jumbo jets serve the same purpose: They transport us from A to B. This distance between A and B is the most important factor for calculating efficiency. Ultimately, it is the distance that influences the different designs of the two modes of transport. The base case is slightly more complicated when dealing with vacuum supply. There is no single primary factor that dominates the assessment.

Design follows application

That which is required of the vacuum may vary greatly, so many different aspects have to be taken into account. The long list of these include the vacuum level and pumping speed, a permanent or intermittent need for vacuum, installation location, and immission protection. In addition to energy consumption, realistic efficiency calculations also factor in things like maintenance effort and total life cycle costs, as well as the incorporation of vacuum technology into the overall process.

Vacuum technology can offer a large number of operating principles to meet a wide array of requirements. Users can choose from very different designs for their vacuum pumps. The design has a major influence on the vacuum pump's operating efficiency. The best way to demonstrate this is by looking at a few examples:

Vacuum packaging with rotary vane vacuum pumps

For vacuum packaging, vacuum is needed in short, regular cycles, without delay. In this application, oil-lubricated rotary vane vacuum pumps have proven themselves millions of times all around the world. Busch has been continuously enhancing rotary vane technology for the past 50+ years. The best-selling version of this type of vacuum pump is the R 5 from Busch. The latest generation, the RD series, is at least 20% more energy-efficient than any comparable rotary vane vacuum pump on the market.

Pneumatic conveying with claw vacuum pumps

Normally, a lower vacuum is all that is needed when conveying bulk goods pneumatically. Mink claw vacuum pumps have established themselves as the international industry standard for conveying plastic granules or powdered and pourable foodstuffs. Their constant pumping speed, operating fluid-free compression, and absolute reliability allow for the safe and efficient conveying of bulk goods.

Heat treatment/coating with screw vacuum pumps

When treating metals with heat or coating objects, it is often essential to eliminate all atmospheric oxygen from the process wherever possible. With an ultimate pressure of just 0.001 millibars, the COBRA screw vacuum pump reliably achieves this target. It is available in a number of sizes, meaning it can tackle even large volumes in a short space of time. Its specially developed screw profile also ensures maximum efficiency in vacuum generation.

So, the question as to whether to use a bike or a plane for a journey may be relatively easy in comparison. A layperson will usually be overwhelmed when trying to choose the most suitable vacuum pump because so many parameters have to be taken into account. The experts from Busch will help you to select the vacuum technology best suited to your application.


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