The Anonymous Widower

!40 mph Electric Trains At Kings Cross Station

This picture shows LNER’s old and new 140 mph electric trains at Kings Cross station.

On the left is a nine-car Class 801 train.

  • Introduced into service in 2019
  • 234 metres long
  • Capacity – 510 Standard and 101 First
  • One diesel engine for emergency power.

On the right is an InterCity 225.

Both trains are designed for 140 mph and will be able to attain this speed, when in-cab digital signalling is available.

It looks like LNER will have the following full-size electric fleet.

  • Thirty Class 801 trains
  • Seven InterCity 225 trains and spare coaches, driving van trailers and locomotives.

Both trains will be able to work any route with full electrification.

Changes In The Future To LNER Services

I predict that the following will happen.

140 mph Running Between Woolmer Green And Doncaster

This will happen and the following trains will take advantage.

The odd ones out will be Grand Central’s Class 180 trains, which are diesel and only capable of 125 mph.

How long will the other train operating companies accept slow trains on the 140 mph railway?

Digital In-Cab Signalling And 140 mph Running Will Speed Up Services

In Thoughts On Digital Signalling On The East Coast Main Line, I said that following train times would be possible., in addition to a London Kings Cross and Leeds time of two hours.

  • London Kings Cross and Bradford Forster Square – two hours and thirty minutes
  • London Kings Cross and Harrogate – two hours and thirty minutes
  • London Kings Cross and Huddersfield – two hours and twenty minutes
  • London Kings Cross and Hull – two hours and thirty minutes
  • London Kings Cross and Middlesbrough – two hours and thirty minutes
  • London Kings Cross and Scarborough – two hours and thirty minutes
  • London Kings Cross and Skipton – two hours and thirty minutes
  • London Kings Cross and York – two hours

Note.

  1. All timings would be possible with Hitachi Class 80x trains.
  2. Timings on Fully-electrified routes would be possible with InterCity 225 trains.

It appears that Grand Central will be stuck in the slow lane.

Grand Central Will Acquire Hitachi Trains Or Give Up

Grand Central‘s destinations of Bradford Interchange and Sunderland can’t be reached by all-electric trains, so will either have to follow Hull Trains and purchase Hitachi bi-mode trains or give up their routes.

The Diesel Engines In The Class 801 Trains Will Be Replaced By Batteries

East Coast Trains’ Class 803 trains have a slightly different powertrain to LNER’s Class 801 trains, which is explained like this in Wikipedia.

Unlike the Class 801, another non-bi-mode AT300 variant which despite being designed only for electrified routes carries a diesel engine per unit for emergency use, the new units will not be fitted with any, and so would not be able to propel themselves in the event of a power failure. They will however be fitted with batteries to enable the train’s on-board services to be maintained, in case the primary electrical supplies would face a failure.

I wouldn’t be surprised to see a similar battery system fitted to the Class 801 trains.

The Diesel Engines In Hull Trains Class 802 Trains Will Be Replaced By Batteries

In Hull Issues New Plea For Electrification, I showed how Hitachi’s Class 802 trains with batteries instead of diesel engines could work long-distance services to and from Hull.

This will happen, as electric trains to London, would be a dream for a marketing man or woman.

Will The InterCity 225 Trains Lose Some First Class Seats?

This may happen, so that the seating layout in both trains is almost identical.

I’m certain, that it could be arranged, that seat numbers in both trains could have a similar position.

This would mean that if an InterCity 225 train replaced a Class 801 train, there wouldn’t need to be a seat reallocation.

Could InterCity 225 Trains Be Fitted With Emergency Batteries?

If LNER thought they were needed, I’m sure that this would be possible and Hyperdrive Innovation would oblige!

Conclusion

British Rail last hurrah, is giving Hitachi’s latest trains, a run for their money!

 

September 17, 2020 Posted by | Transport | , , , , , , , | 4 Comments

Thoughts On Digital Signalling On The East Coast Main Line

I came up to Doncaster yesterday on a new Hull Trains Class 802 train.

According t9o my pocket dynamometer car, the train seemed to be at or nearly at 125 mph, most of the time I looked from possibly around Stevenage to just South of Doncaster.

I came back today on an LNER Class 801 train and the train’s performance seemed very similar.

I also noted the following.

  • The two stops at Newark and Peterborough, took seven and nine minutes respectively from the start of slowing for the station until back up to speed.
  • Between Peterborough and Stevenage the train kept below a maximum of 110 mph.
  • The train went through the two tunnels before Welwyn North station and the station itself at 75 mph.
  • I timed the train at 100 mph over the Digswell Viaduct, when it reached the South side after accelerating on the viaduct.
  • 90 mph was maintained between Potters Bar and New Southgate stations.
  • Speed gradually reduced from New Southgate into Kings Cross.

Note.

  1. 125 mph is the maximum allowable speed of the train.
  2. The 110 mph running was probably to be compatible with the Class 387 trains.
  3. I will do the trip again and get some accurate figures.

It appears to me, that the driver was obeying a simple but fast plan.

The Wikipedia entry for the East Coast Main Line, says this about the opiating speed of the line, with the new trains.

Increasing maximum speeds on the fast lines between Woolmer Green and Dalton-on-Tees up to 140 mph (225 km/h) in conjunction with the introduction of the Intercity Express Programme, level crossing closures, ETRMS fitments, OLE rewiring and the OLE PSU – est. to cost £1.3 billion (2014). This project is referred to as “L2E4” or London to Edinburgh (in) 4 Hours. L2E4 examined the operation of the IEP at 140 mph on the ECML and the sections of track which can be upgraded to permit this, together with the engineering and operational costs

It also says this about the implementation of digital signalling.

A new Rail operating centre (ROC), with training facilities, opened in early 2014 at the “Engineer’s Triangle” in York. The ROC will enable signalling and day-to-day operations of the route to be undertaken in a single location. Signalling control/traffic management using ERTMS is scheduled to be introduced from 2020 on the ECML between London King’s Cross and Doncaster – managed from the York ROC.

The signalling could probably work in one of two ways.

  • The signalling tells the driver the required speed and he drives the train accordingly.
  • The signalling drives the train and the driver monitors what is happening.

Both methods are used in the UK.

A Possible London Kings Cross and Leeds Service

The combined affect of both track and signalling improvements is illustrated by this simple calculation.

  • As Dalton-on-Tees is North of Doncaster, the route between Woolmer Green and Doncaster should be possible to be run at 140 mph
  • Woolmer Green and Doncaster stations are 132.1 miles apart.
  • Non-stop York and London Kings Cross trains are currently timed at 70 minutes between Doncaster and Woolmer Green stations.
  • This is an average speed of 113.2 mph.

If 140 mph could be maintained between Doncaster and Woolmer Green, the section of the journey would take 56.6 minutes, which is a saving of 13.4 minutes.

Consider.

  • The fastest current trains between London Kings Cross and Leeds take between two hours and twelve minutes and two hours and fifteen minutes.
  • I suspect that the extra tracks into Kings Cross, that are currently being built will save a few minutes.
  • There must be some savings to be made between Doncaster and Leeds
  • There must be some savings to be made between London Kings Cross and Woolmer Green.
  • There could be a rearrangement of stops.

I think it is highly likely that there be at least one train per hour (tph) between London Kings Cross and Leeds, that does the trip in two hours.

  • There is no reason why all London Kings Cross and Leeds trains could take two hours.
  • High Speed Two is predicting one hour and twenty-one minutes for their future service, which is a saving of 38 minutes.
  • London and Leeds in two hours will attract passengers.

There will be serious competition between London and Leeds.

Other Timing Improvements

I also think these times would be possible

  • London Kings Cross and Bradford Forster Square – two hours and thirty minutes
  • London Kings Cross and Harrogate – two hours and thirty minutes
  • London Kings Cross and Huddersfield – two hours and twenty minutes
  • London Kings Cross and Hull – two hours and thirty minutes
  • London Kings Cross and Middlesbrough – two hours and thirty minutes
  • London Kings Cross and Scarborough – two hours and thirty minutes
  • London Kings Cross and Skipton – two hours and thirty minutes
  • London Kings Cross and York – two hours

I would be fairly certain that London Kings Cross and Huddersfield could be slowed by ten minutes, which would give the London Kings Cross and Yorkshire a certain symmetry.

  • London Kings Cross and Leeds and York would take two hours.
  • London Kings Cross and all the others would take two hours and thirty minutes.

It would probably make arrangement of a fast timetable easier.

 

 

September 15, 2020 Posted by | Transport | , , , , , , , , , | 1 Comment

Overhauls for LNER’s Remaining Class 91s And Mk 4s

The title of this post, is the same as that of this article on Rail Magazine.

This is the introductory paragraph.

Eversholt Rail, which owns the trains, has confirmed that 12 London North Eastern Railway Class 91s and the remaining Mk 4 coaches will undergo overhauls at Wabtec Rail, Doncaster.

It had been expected, that LNER would purchase more trains, as I wrote about in More New Trains On LNER Wish List.

The article gives more details of the trains to be retained.

  • Twelve Class 91 locomotives, seven rakes of Mark 4 coaches and two spare coaches will be retained.
  • They will be confined to routes between London Kings Cross and Bradford, Leeds, Skipton and York.

How many trains will be needed to cover these routes?

  • Trains take two hours and fifteen minutes between London Kings Cross and Leeds and run at a frequency of two trains per hour (tph)
  • Trains take two hours and twenty-one minutes between London Kings Cross and York and run hourly.
  • I suspect that a round trip to Leeds or York can be five hours.

So a crude analysis says, that will mean fifteen trains will be needed,

But some of these trains will be extended past Leeds.

These are, electrification status and the times and distances between Leeds and the final destinations.

  • Bradford – Electrified – 22 minutes – 13.5 miles
  • Harrogate – Not Electrified – 40 minutes – 18 miles
  • Huddersfield – Not Electrified – 33 minutes – 17 miles
  • Skipton – Electrified  – 45 minutes – 26 miles

It appears that the following is true.

  • Trains serving Harrogate and Huddersfield must be worked by bi-mode Class 800 trains.
  • Trains serving Bradford and Skipton could be worked by InterCity 225 trains or an all-electric nine-car Class 801 train.

Note.

  1. Some times are those taken by LNER services and some are estimates from TransPennine Express.
  2. I have assumed 8-10 minutes for the Split-and-Join at Leeds and included it in the times.
  3. Class 800 trains seem to take around ten minutes to turnround at Harrogate.
  4. Times between London Kings Cross and Doncaster will decrease by a few minutes, with the addition of digital in-cab signalling on the route, which will allow 140 mph running by InterCity 225s, Class 800 trains and Class 801 trains.

I estimate that it will be possible for an InterCity 225, Class 800 train or Class 801 train to do a round trip between London Kings Cross and Bradford, Harrogate, Huddersfield or Skipton in six hours.

The round trip between London Kings Cross and York will be the five hours, I estimated earlier.

Wikipedia also says this.

LNER expects to introduce two-hourly services to Bradford and a daily service to Huddersfield in May 2020 when more Azuma trains have been introduced.

So would the pattern of trains to Leeds/York be as follows?

  • One tph – One pair of five-car Class 800 trains to Leeds, of which some or all split and join at Leeds, with one train going to and from Harrogate and the other going to and from Huddersfield.
  • One tph per two hours (tp2h) – An InterCity 225 or nine-car Class 801 train to Leeds, of which some or all are extended to Bradford.
  • One tp2h – An InterCity 225 or nine-car Class 801 train to Leeds, of which some or all are extended to Skipton.
  • One tph – An InterCity 225 or nine-car Class 801 train to York.

I estimate that it will be possible for an InterCity 225, Class 800 train or Class 801 train to do a round trip between London Kings Cross and Bradford, Harrogate, Huddersfield or Skipton in six hours.

This would need the following trains.

  • Six pairs of five-car Class 800 trains for the Harrogate and Huddersfield services.
  • Six full size all electric trains, which could be an InterCity 225, a nine-car Class 801 train or a pair of five Class 801 trains, for Bradford and Skipton services.
  • Five full size all electric trains, which could be an InterCity 225, a nine-car Class 801 train or a pair of Class 801 trains, for York services.

So why have LNER changed their mind and are retaining the InterCity 225?

Are InterCity 225 Trains Already Certified For 140 mph Running?

I wouldn’t be surprised, if a large part of the certification work for this had been done for 140 mph running and for it to be allowed, it needs digital in-cab signalling to be installed on the East Coast Main Line.

The Wikipedia entry for the InterCity 225 says this about the train’s performance.

The InterCity 225 has a top service speed of 140 mph (225 km/h); during a test run in 1989 on Stoke Bank between Peterborough and Grantham an InterCity 225 reached 162 mph (260.7 km/h). However, except on High Speed 1, which is equipped with cab signalling, British signalling does not allow trains to exceed 125 mph (201 km/h) in regular service, due to the impracticality of correctly observing lineside signals at high speed.

The Wikipedia entry for the East Coast Main Line says this about the future signalling.

A new Rail operating centre (ROC), with training facilities, opened in early 2014 at the “Engineer’s Triangle” in York. The ROC will enable signalling and day-to-day operations of the route to be undertaken in a single location. Signalling control/traffic management using ERTMS is scheduled to be introduced from 2020 on the ECML between London King’s Cross and Doncaster – managed from the York ROC.

A small fleet of InterCity 225 trains could be the ideal test fleet to find all the glitches in the new signalling.

Are InterCity 225 trains Already Certified To Run To Bradford and Skipton?

If they are, then that is another problem already solved.

A Fleet Of Seven Trains Would Cover Bradford And Skipton Services

Six trains are needed to run a one tp2h service to both Bradford and Skipton, so they could fully cover one tp2h to Bradford and occasional trains to Skipton with a spare train and one in maintenance.

Using InterCity 225s To Bradford and Skipton Would Not Require A Split-And-Join At Leeds

The number of trains that would Split-and-Join at Leeds would be only two tph instead  of four tph, which would be simpler with less to go wrong.

Not Enough Five-Car Bi-Mode Class 800 Trains

LNER’s full fleet of Azumas will be as follows.

  • 13 – Nine-car bi-mode Class 800 trains.
  • 10 – Five-car bi-mode Class 800 trains.
  • 30 – Nine-car electric Class 801 trains.
  • 12 – Five-car electric Class 801 trains.

This would appear to be a major problem, if Harrogate and Huddersfield were to be served hourly by Class 800 trains, existing services are to be maintained or even increased to Hull and Lincoln and extra services are to be added to Middlesbrough and perhaps Nottingham and other destinations.

The InterCity 225s only help indirectly, if they provided the London Kings Cross and Bradford and Skipton services.

Conversion Of Class 800 and Class 801 Trains To Regional Battery Trains

Hitachi have launched the Regional Battery Train, which is described in this Hitachi infographic.

For LNER, they will be useful for any Journey under about 90 kilometres or 56 miles.

The trains should be able to serve these routes.

  • Leeds and Harrogate and back – 36 miles
  • Leeds and Huddersfield and back – 34 miles
  • Newark and Lincoln and back – 33 miles
  • Northallerton and Middlesbrough and back – 42 miles

Whilst Class 800 trains and Class 801 trains are converted, the InterCity 225 trains would act as valuable cover on services like London to Leeds and York.

Conclusion

I think it is a good plan.

September 14, 2020 Posted by | Transport | , , , , , , , , , , , , , | 1 Comment

Could Some of Hitachi’s Existing Trains In The UK Be Converted To Battery-Electric Trains?

The last five fleets of AT-300 trains ordered for the UK have been.

Each fleet seems to be tailored to the needs of the individual operator, which is surely as it should be.

I can make some observations.

Fast Electric Trains

Both electric fleets on the list, will run on routes, where speed will be important.

  • The Avanti West Coast fleet on the West Coast Main Line, will have to be able to keep up keep with the Class 390 trains, that have the advantage of tilt for more speed.
  • The East Coast Trains fleet on the East Coast Main Line, will have to work hard to maintain a demanding schedule, as I outlined in Thoughts On East Coast Trains.

Any reduction in weight will improve the acceleration.

  • The seven tonne MTU 12V 1600 R80L diesel engines can be removed to reduce the weight.
  • As a five-car Class 800 train with three diesel engine weighs 243 tonnes, this could save nearly 9 % of the train’s weight.
  • East Coast Trains feel they need an appropriately-sized battery for emergency hotel power. Could this be because the catenary is not as good on the East Coast Main Line as on the West?
  • Perhaps, Avanti West Coast feel a battery is not needed, but they could obviously fit one later. Especially, if there was already a ready-wired position underneath the train.

The extra acceleration given by 100% electric operation, must make all the difference in obtaining the required performance for the two routes.

Why Four Diesel Engines In A Class 810 Train?

The Class 810 trains are an update of the current Class 800/Class 802 trains. Wikipedia described the differences like this.

The Class 810 is an evolution of the Class 802s with a revised nose profile and facelifted end headlight clusters, giving the units a slightly different appearance. Additionally, there will be four diesel engines per five-carriage train (versus three on the 800s and 802s), and the carriages will be 2 metres (6.6 ft) shorter due to platform length constraints at London St Pancras.

Additionally, in this article in the October 2019 Edition of Modern Railways, which is entitled EMR Kicks Off New Era, this is said.

The EMR bi-modes will be able to run at 125 mph in diesel mode, matching Meridian performance in a step-up from the capabilities of the existing Class 80x units in service with other franchises.

The four diesel engines would appear to be for more power, so that these trains will be able to run at 125 mph on diesel.

In How Much Power Is Needed To Run A Train At 125 mph?, I calculated that a Class 801 train, which is all-electric, consumes 3.42 kWh per vehicle mile.

  • At 125 mph a train will in an hour travel 125 miles.
  • In that hour the train will need 125 x 5 x 3.42 = 2137.5 kWh
  • This means that the total power of the four diesel engines must be 2137.5,
  • Divide 2137.5 by four and each diesel must be rated at 534.4 kW to provide the power needed.

The MTU 12V 1600 R80L diesel engine is described in this datasheet on the MTU web site.

Note on the datasheet, there is a smaller variant of the same engine called a 12V 1600 R70, which has a power output of 565 kW, as compared to the 700 kW of the 12V 1600 R80L.

The mass of the engines are probably at the limits of the range given on the datasheet.

  • Dry – 4500-6500 Kg
  • Wet – 4700-6750 Kg

It would appear that the less-powerful 12V 100 R70 is about two tonnes lighter.

So where will four engines be placed in a Class 810 train?

  • The five-car Class 800 and Class 802 trains have diesel-engines in cars 2, 3 and 4.
  • The nine-car Class 800 and Class 802 trains have diesel-engines in cars 2,3, 5, 7 and 8.
  • It appears that diesel-engines aren’t placed under the driver cars.
  • Five-car AT-300 trains generally have a formation of DPTS+MS+MS+MC+DPTF.
  • The car length in the Class 810 trains are two metres shorter than those in other trains.

Could it be that the intermediate cars on Class 810 trains will be an MC car, which has both First and Standard Class seating and two identical MS cars both with two smaller diesel engines?

  • The two smaller diesel engines will be about 2.6 tonnes heavier, than a single larger engine.
  • Only one fuel tank and other gubbins will be needed.
  • The shorter car will be lighter in weight.
  • MTU may have designed a special diesel engine to power the train.

I would suspect that a twin-engined MS car is possible.

Could The Battery And The Diesel Engine Be Plug-Compatible?

I found this document on the Hitachi Rail web site, which is entitled Development of Class 800/801 High-Speed Rolling Stock For UK Intercity Express Programme.

The document may date from 2014, but it gives a deep insight into the design of Hitachi’s trains.

I will take a detailed look at the traction system as described in the document.

This schematic of the traction system is shown.

Note BC is described as battery charger.

This is said in the text, where GU is an abbreviation for generator unit.

The system can select the appropriate power source from either the main transformer or the GUs. Also, the size and weight of the system were minimized by designing the power supply converter to be able to work with both power sources. To ensure that the Class 800 and 801 are able to adapt to future changes in operating practices, they both have the same traction system and the rolling stock can be operated as either class by simply adding or removing GUs. On the Class 800, which is intended to run on both electrified and non-electrified track, each traction system has its own GU. On the other hand, the Class 801 is designed only for electrified lines and has one or two GUs depending on the length of the trainset (one GU for trainsets of five to nine cars, two GUs for trainsets of 10 to 12 cars). These GUs supply emergency traction power and auxiliary power in the event of a power outage on the catenary, and as an auxiliary power supply on non-electrified lines where the Class 801 is in service and pulled by a locomotive. This allows the Class 801 to operate on lines it would otherwise not be able to use and provides a backup in the event of a catenary power outage or other problem on the ground systems as well as non-electrified routes in loco-hauled mode.

This is all very comprehensive.

Note that the extract says, that both the Class 800 trains and Class 801 trains have the same traction control system. A section called Operation in the Wikipedia entry for the Class 802 train, outlines the differences between a Class 802 train and a Class 800 train.

The Class 802s are broadly identical to the Class 800 bi-mode trains used in the Intercity Express Programme, and are used in a similar way; they run as electric trains where possible, and are equipped with the same diesel generator engines as the Class 800. However, they utilise higher engine operating power – 700 kW (940 hp) per engine as opposed to 560 kW (750 hp) – and are fitted with larger fuel tanks to cope with the gradients and extended running in diesel mode expected on the long unelectrified stretches they will operate on.

I would assume that the differences are small enough, so that a Class 802 train, can use the same traction control system, as the other two train classes.

The Hitachi document also describes the Train Management and Control System (TCMS), the function of which is described as.

Assists the work of the train crew; a data communication function that aids maintenance work; and a traction drive system that is powered by the overhead lines (catenaries) and GUs.

Several trains have been described as computers on wheels. That could certainly be said about these trains.

There would appear to be a powerful Automatic Train Identification Function.

To simplify the rearrangement and management of train configurations, functions are provided for identifying the train (Class 800/801), for automatically determining the cars in the trainset and its total length, and for coupling and uncoupling up to 12 cars in normal and 24 cars in rescue or emergency mode.

Now that would be a site – One nine-car train rescuing another!

I would assume that this Automatic Train Identification Function has already been updated to add the Class 802 trains and it would appear to me, as a very experienced computer programmer, that in future it could be further updated to cater for the following.

  • New classes of trains like the future Class 803 and Class 810 trains.
  • The fitting of batteries instead of diesel engines.

Could the Function even be future-proofed for hydrogen power?

There are two main ways for trains to operate when the diesel engine in a car has been replaced by a battery.

  1. A plug-compatible battery module is designed, that in terms of function looks exactly like a diesel engine to the TCMS and through that the train crew.
  2. The car with a battery becomes a new type of car and the TCMS is updated to control it, in an appropriate manner.

Both methods are equally valid.

I would favour the first method, as I have come across numerous instances in computer programming, engineering and automation, where the method has been used successfully.

The method used would be Hitachi’s choice.

What Size Of Battery Could Be Fitted In Place Of The Diesel Engine?

Consider.

  • The wet mass of an MTU 16V 1600 R80L diesel engine commonly fitted to AT-300 trains of different types is 6750 Kg or nearly seven tonnes.
  • My engineering knowledge would suggest, that it would be possible to replace the diesel engine with an inert lump of the same mass and not affect the dynamics of the train.

So could it be that a plug-compatible battery module can be fitted, so long as it doesn’t exceed the mass of the diesel engine it replaces?

For an existing Class 800 or Class 802 train, that limit could be seven tonnes.

But for East Coast Train’s Class 803 train, that size would probably be decided by the required train performance.

How much power would a one tonne battery hold?

This page on the Clean Energy institute at the University of Washington is entitled Lithium-Ion Battery.

This is a sentence from the page.

Compared to the other high-quality rechargeable battery technologies (nickel-cadmium or nickel-metal-hydride), Li-ion batteries have a number of advantages. They have one of the highest energy densities of any battery technology today (100-265 Wh/kg or 250-670 Wh/L).

Using these figures, a one-tonne battery would be between 100 and 265 kWh in capacity, depending on the energy density.

This table can be calculated of battery weight, low capacity and high capacity.

  • 1 tonne – 100 kWh – 265 kWh
  • 2 tonne – 200 kWh – 530 kWh
  • 3 tonne – 300 kWh – 895 kWh
  • 4 tonne – 400 kWh – 1060 kWh
  • 5 tonne – 500 kWh – 1325 kWh
  • 6 tonne – 600 kWh – 1590 kWh
  • 7 tonne – 700 kWh – 1855 kWh

As energy densities are only going to improve, the high capacity figures are only going to get larger.

If you look at the design of the Class 810 trains, which could have three positions for diesel engines or batteries, the designers of the train and East Coast Trains can choose the battery size as appropriate for the following.

  • Maximum performance.
  • Power needs when halted in stations.
  • Power needs for emergency power, when the wires come tumbling down.

I suspect, they will fit only one battery, that is as small as possible to minimise mass and increase acceleration, but large enough to provide sufficient power, when needed.

Conversion Of A Five-Car Class 800/Class 802 Train To Battery-Electric Operation

If Hitachi get their design right, this could be as simple as the following.

  • Any of the three MTU 12V 1600 R80L diesel engines is removed, from the train.
  • Will the other diesel related gubbins, like the fuel tank be removed? They might be left in place, in case the reverse conversion should be needed.
  • The new battery-module is put in the diesel engine’s slot.
  • The train’s computer system are updated.
  • The train is tested.

It should be no more difficult than attaching a new device to your personal computer. Except that it’s a lot heavier.

As there are three diesel engines, one, two or three could be replaced with batteries.

Trains would probably be able to have a mixture of diesel engines and battery modules.

A Class 802 train with one diesel engine and two five-tonne batteries would have the following power sources.

  • 25 KVAC overhead electrification.
  • A 700 kW diesel engine.
  • Two five-tonne batteries of between 500 kWh and 1325 kWh.

With intelligent software controlling the various power sources, this train could have a useful range, away from the electrification.

Conversion Of A Five-Car Class 810 Train To Battery-Electric Operation

The process would be similar to that of a Class 800/Class 802 Train, except there would be more possibilities with four engines.

It would also need to have sufficient range to bridge the gaps in the electrification.

Perhaps each train would have the following power sources.

  • 25 KVAC overhead electrification.
  • Two 565 kW diesel engines.
  • Two four-tonne batteries of between 400 kWh and 1060 kWh.
  • Batteries might also be placed under the third intermediate car.

I estimate that with 400 kWh batteries, a train like this would have a battery range of sixty-five miles.

Conclusion

The permutations and combinations would allow trains to be tailored to the best compromise for a train operating company.

June 8, 2020 Posted by | Transport | , , , , , , , | 1 Comment

When The New Newport Railway Line To Cater For Major Events Is Set To Open

The title of this post is the same as that of this article on Wales Online.

If you’ve ever been to a major event at the Principality Stadium in Cardiff, as I have a couple of times, you’ll know that getting your train back to England can be a long wait.

So the Welsh have come up with a cunning plan to build a staging area, where they can hold trains near the former Llanwern steelworks site at Newport.

  • It will be 2.4 km. long.
  • I estimate that a nine-car Class 801 train is 234 metres long and holds 611 passengers, so the siding can hold ten trains which have a capacity of over six thusand passengers.
  • It is part of a £50million plan for a new Llanwern station, which is part of the South Wales Metro.
  • It will also be used for the testing of trains. It is very handy for CAF’s Newport factory.

This Google Map shows the site, with CAF’s factory highlighted.

Note the South Wales Main Line running along the North of the massive steelworks site. So if the staging area, is built between the main line and the steelworks site, which contains the CAF factory, it will be convenient for both uses.

This looks to be a good plan, that will solve more multiple problems and needs.

April 26, 2020 Posted by | Sport, Transport | , , , , | Leave a comment

A Better News Day For New Trains

Yesterday, was a better news day for new trains, with articles with these headlines.

All are significant for passengers.

Class 710 Trains

The authorisation of the Class 710 trains is particular importance to me, as they will be running locally to where I live.

It will be a couple of months before they enter passenger service.

But the trains have mainly been delayed by software problems and now that appears to have been fixed and as there are twenty trains already built, I could see them entering service, as soon as drivers have been trained.

It should be noted that eight trains are needed for the Gospel Oak to Barking Line and six for the Watford DC Line, so if twenty have been built, I would expect that these two routes could be converted to the new trains by the summer.

Class 801 Trains

LNER’s Class 801 trains will be a significant introduction, as they will enable the cascade of the Mark 4 coaches to other operators, like Trains for Wales and East Midlands Railway.

April 17, 2019 Posted by | Transport | , , , , , , , , | 2 Comments