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ScotRail to trial hydraulic tech to cut carbon emissions

A new hydraulic pump could reduce Scotland’s carbon emissions by 4,000 tonnes of carbon dioxide per year.

The digital pump, which is being used by ScotRail, will initially be trialled on a standard commuter train.

Most modern diesel trains use a hydraulic unit to power each carriage’s cooling fans and generate electricity, which uses around 10% to 15% of the engine’s fuel.

The new pump uses computer-controlled valves to switch its cylinders off when they are not required, making it more efficient, and giving significant fuel savings.

It is estimated that the new pumps will save over 9,000 litres of diesel per carriage per year.

If rolled out across the ScotRail fleet of class 170 Turbostars, this would equate to over 1.5 million litres of fuel saved each year.

The technology has been part-funded by the Rail Safety and Standards Board and can be used wherever hydraulic systems are found.

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Andrew J Gwilt   22/12/2017 at 15:54

Looking forward to seeing these installed on the Class 170s, if installed they could save up to 15% on fuel. They could be used to run the carriages cooling fans and generate electricity. They should also use a hydraulic pump on the Class 185s, Class 171s, Class 158s, Class 159s.

Frankh   22/12/2017 at 20:06

Surely if it's such a cost saving device every leasing company would be trialing one.

Henry Law   22/12/2017 at 21:17

Wouldn't it be easier to cool the carriages by opening the windows? Draught free ventilation (sliding panels with an air dam) has been around for the past 80 years.

Andrew Gwilt   22/12/2017 at 22:45


Andrew JG   23/12/2017 at 06:49

Well the Class 170’s used on the Shotts Line will soon be replaced to operate elsewhere in Scotland because of the Class 385’s that will replace the Class 170’s once the electrification on the Shotts Line between Glasgow and Edinburgh will be completed on time and the Class 385’s will soon operate on that line. Aswell on the Falkirk High Line as it will provide quicker and reliable journey times between Glasgow Queen Street and Edinburgh Waverley. With non-stop, stopping and semi-fast services for people to travel on those trains between the 2 cities.

James Miller   23/12/2017 at 08:21

It sounds like the pump comes from a company spun out of Edinburgh University, which is now owned by Mitsubishi, which is called something like Artemis Intelligent Power. The pumps ate being used in wind turbines.

Gwilty As Charged   23/12/2017 at 14:36

No re-consideration here Andrew Gwilt, Andrew J Gwilt, AJG89, Andrew JG, Essex Commuter, Rail Enthusiast, Drew G, AndyJG & many many more. I am just a train follower who likes to react to the breaking news stories. I put it to you good sir, that you are using my name, I changed it by deed poll just to comment on here.

Frankh   23/12/2017 at 14:47

There is one installed in a 170 according to Artemis. They reckon that if instead of just the auxiliary systems they used digital displacement on the entire transmission savings of up to 30% are possible.

Andrew Gwilt   23/12/2017 at 20:14

Go ahead then TROLLS. Use my name. I am still going to comment no matter what I post a comment and yes have a argument at times. I probably won’t comment every single time if some person is using my name then I rather stay quiet and just comment which means I have to use my own real name as RTM would be confused. Looks like it will continue. At least the email address won’t be shown.

Anonymous   24/12/2017 at 11:14

Let’s just have good a good Christmas ok. MERRY CHRISTMAS FOLKS.

Mark   24/12/2017 at 11:58

Shut up Andrew. We can easily tell whether a comment is you or not. That’s the whole joke.

Andrew Gwilt   24/12/2017 at 15:00

Oh the joys of Christmas commiserations and misery. :D

Father Gwiltmas   24/12/2017 at 15:06

Like the defunct East Anglian franchise, merry Christmas every One. May your new year start on the right track, as long as the essential engineering works have finished on them Father G, North Pole TMD

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