Hydraproducts Blog

Get in touch to talk to us today about your requirements

13Nov

Saving Energy with your Hydraulic System

Specify Alternate Text

2019 Update –A quick catch-up from our previous blog which looked at energy saving within the hydraulics industry; one area we previously touched upon was the use of variable speed pumps to which improved the hydraulic footprint. These types of pumps have been shown to improve running costs by up to 80% in some units and they are being used in much higher quantities now their large cost savings have been realised.

So, using the latest proven components and changing worn system parts is a proven way to ensure your hydraulic power unit remains energy efficient and cost effective.

In this day and age the word ‘Energy Saving’ seems to be the number one buzzword with manufacturers working to maximise their productivity whilst saving as much energy as they can. Fortunately, in the hydraulics industry which has seen huge leaps in technology over the years, it is possible to design a power unit to maximise its running efficiency whilst still maintaining reliability.

There are a number of key areas of a hydraulic power pack that can be developed to make them more efficient and these are explained below:

Correct hydraulic pump specification – It is essential when the end user specifies which hydraulic pump they need for their application they should aim lower rather than higher, as lower pressures going through the system will aid efficiency and avoid working the system too hard.

Variable Displacement Pump – This is a device designed to convert mechanical energy into fluid energy  This is carried out by varying the displacement of the pump while it is running, which basically means the amount of fluid pumped per input shaft revolution.

Various pump compensator circuits are available that ensure pump flows closely match those required by the hydraulic system, thus reducing energy lost through heat etc.

System piping – In the design stage of a power unit and its installation, it is always best to try to minimise and bends in the system as this will allow the hydraulic fluid to flow more freely and efficiently. Pipe sizing is crucial to minimise pressure losses that add to the power requirements.

Component specifications and positioning – When creating a bespoke power unit it is crucial to successfully plan where componentry is to be situated including pumps, motors, tubing, valves etc. and components such as accumulators and should be designed correctly to ensure they are suitable for the type of unit that is being built and the load that will be added to it whilst in operation.

Lightweight materials – As in many things, using lightweight yet strong materials can help a system lower its footprint and improve system reliability by not putting as much stress on internal system components. Aluminium is an industry favourite for hydraulic power units, as it has all of the above qualities and is a cost effective and long lasting solution.

Inverter Drives – A good device to consider if you want to make your power unit more efficient, as it allows you to adjust the output speed of the unit’s motor; some modern drives can make units 50% more energy efficient while also reducing noise levels and environmental impact.

Recent surveys conducted among hydraulic engineers show that the majority of them believe that inverter drive usage will increase considerably over the next 3 years.

Unit location – One major factor, which, if carefully managed can save energy as well as prolong the life of a system is its positioning. If for example if the unit was placed in a dusty environment where particulate matter could cause a problem with filters etc. it could severely restrict the running of the system and thus reduce its energy efficiency, whereas if the unit was placed in a well-ventilated area it would drastically improve its running, making it more energy efficient and preserving the life of system components

So we can see from the above energy saving measures that if a build project is managed correctly, taking the above points into account, it is likely to be a reliable, efficient and energy saving system that will save you on costs long into the future.

Related

What oil reservoir size should I specify ?

What oil reservoir size should I specify? Is it just about “three times flow rate”?

Read More >

Why Would Your Hydraulic Cylinder Fail?

There are a number of reason why hydraulic cylinders fail ranging from misuse to bad specification t...

Read More >

How to Keep Hydraulic Oil Clean

How to Keep Your Hydraulic Oil Clean One of our clients recently went through a period of experien...

Read More >

Seasonal hydraulic maintenance

It has been a reasonably warm autumn and winter so far, barring a couple of very cold days here and ...

Read More >

What are Hydraulic Powerpacks?

Hydraulic Powerpacks In this article we want to explain the ins and outs of hydraulic powerpacks...

Read More >

Hydraulic Pressure-reducing Valves - What You Need to Know

What You Need to Know About Pressure-reducing ValvesIn a Hydraulic System, you are most likely aware...

Read More >
  • Back to top