The Anonymous Widower

Hull Station

On my recent visit to Hull station I took these pictures.

This Google Map shows the station.

These are my thoughts on the station .

Platforms

Consider.

  • The station has seven platforms, which are numbers 1 to 7 from South to North.
  • My Hull Trains service from London arrived in the Northernmost platform, which is numbered 7.
  • Most Hull Trains services seem to use this platform.
  • LNER services also seem to use Platform 7.
  • Platforms 4, 5 and 6 seem to be the same length as Platform 7
  • A friendly station guy told me, that LNER have run nine-car Class 800 trains into the station. These trains are 234 metres long.
  • My pictures show that Platform 7 is more than adequate for Hull Train’s five-car Class 802 train, which is 130 metres long.
  • The platforms are wide.

This second Google Map shows the Western platform ends.

It looks to me, that the station should be capable of updating to have at least four platforms capable of taking trains, that are 200 metres long.

Current Long Distance Services To Hull Station

There are currently, two long distance services that terminate at Hull station.

  • One train per hour (tph) – Manchester Piccadilly – two hours
  • Eight trains per day (tpd) – London Kings Cross – two hours and forty-four minutes

Both services are run by modern trains.

Improvements To The Current London And Hull Service

I believe Hull Trains and LNER will run between London Kings Cross and Hull using battery-equipped versions of their Hitachi trains, within the next three years.

The trains will also be upgraded to make use of the digital in-cab signalling, that is being installed South of Doncaster, which will allow 140 mph running.

In Thoughts On Digital Signalling On The East Coast Main Line, I estimated that this could enable a two hours and thirty minute time between London Kings Cross and Hull.

It is very likely that the service will be hourly.

Hull Station As A High Speed Station

Plans for High Speed Two are still fluid, but as I said in Changes Signalled For HS2 Route In North, there is a possibility, that High Speed Two could be extended from Manchester Airport and Manchester Piccadilly to Leeds and ultimately to Newcastle and Hull.

In that post, I felt that services across the Pennines could be something like.

  • High Speed Two – Two tph between London and Hull via Manchester Airport, Manchester Piccadilly and Leeds
  • High Speed Two – One tph between London and Edinburgh via Manchester Airport, Manchester Piccadilly, Leeds, York and Newcastle.
  • Northern Powerhouse Rail – One tph between Liverpool and Edinburgh via Manchester Airport, Manchester Piccadilly, Leeds, York and Newcastle.
  • Northern Powerhouse Rail – Two tph between Liverpool and Sheffield via Manchester Airport and Manchester Piccadilly
  • Northern Powerhouse Rail – Two tph between Liverpool and Hull via Manchester Airport, Manchester Piccadilly and Leeds

There would be four tph between Manchester Airport and Hull via Manchester Piccadilly, Leeds and other intermediate stations.

I estimate that the following timings would be possible.

  • London Euston and Hull – two hours and 10 minutes – Currently two hours and forty-four minutes to London Kings Cross
  • Liverpool and Hull – one hour and thirty minutes – No direct service
  • Manchester and Hull – one hour and three minutes – Currently two hours

As I said earlier London Kings Cross and Hull could be only twenty minutes longer by the classic route on the East Coast Main Line.

I think it will be likely, that both High Speed Two and Northern Powerhouse Rail will use similar High Speed Two Classic-Compatible trains, which will have the following characteristics.

  • Two hundred metres long
  • Ability to run in pairs
  • 225 mph on High Speed Two
  • 125 mph and up to 140 mph on Classic High Speed Lines like East Coast Main Line, Midland Main Line and West Coast Main Line and sections of Northern Powerhouse Rail.

It would appear that as Hull station can already handle a nine-car Class 800 train, which is 234 metre long, it could probably handle the proposed High Speed Two Classic-Compatible trains.

I could see the following numbers of high speed trains terminating at Hull in a typical hour would be as follows.

  • Two High Speed Two trains from London Euston
  • Two Northern Powerhouse Trains from Liverpool Lime Street
  • One Hull Trains/LNER train from London Kings Cross

As Hull already has four platforms, that can accept 200 metre long trains, I don’t think the station will have any capacity problems.

Charging Battery Trains At Hull Station

If Hull Trains, LNER and TransPennine Express, decide to convert their Class 800 and Class 802 trains, that run to and from Hull to Hitachi Regional Battery Trains, they will need charging at Hull station, to be able to reach the electrification of the East Coast Main Line at Temple Hirst Junction.

In Thoughts On The Design Of Hitachi’s Battery Electric Trains, I said this about having a simple charger in a station.

At stations like Hull and Scarborough, this charger could be as simple as perhaps forty metres of 25 KVAC overhead electrification.

    • The train would stop in the station at the appropriate place.
    • The driver would raise the pantograph.
    • Charging would start.
    • When the battery is fully-charged, the driver would lower the pantograph.

This procedure could be easily automated and the overhead wire could be made electrically dead, if no train is connected.

Platforms 4 to 7 could be fitted out in this manner, to obtain maximum operational flexibility.

Full Electrification Of Hull Station

Full electrification of Hull station would also allow charging of any battery electric trains.

I would hope, that any partial electrification carried out to be able to charge trains would be expandable to a full electrification for the station and the connecting rail lines.

A Full Refurbishment

The station would need a full refurbishment and a possible sorting out of the approaches to the station.

But this type of project has been performed at Kings Cross and Liverpool Lime Street in recent years, so the expertise is certainly available.

These pictures are of Liverpool Lime Street station.

I could see Hull station being refurbished to this standard.

Conclusion

It is my belief that Hull would make a superb terminal station for both High Speed Two and Northern Powerhouse Rail

In the interim, it could be quickly developed as a modern terminal for long-distance battery electric trains to make services across the Pennines and to London zero carbon.

The work could also be organised as a series of smaller work packages, without interrupting train services to and from Hull.

 

 

 

 

 

 

 

October 9, 2020 Posted by | Transport | , , , , , , , , , , , , , | 1 Comment

Amazon Backs Reopening Rail Line To Passengers

The title of this post, is the same as that of this article on Derbyshire Live.

This is the introductory paragraph.

A campaign to reopen a railway line to passengers between Burton and Leicester has been backed by businesses such as Amazon in a major step forward.

This sounds positive.

October 9, 2020 Posted by | Transport | , | Leave a comment

Thoughts On The Design Of Hitachi’s Battery Electric Trains

If you look at a Class 800 or Class 802 train, they have underfloor diesel engines. Their powertrain is described like this in its own section in Wikipedia.

Despite being underfloor, the generator units (GU) have diesel engines of V12 formation. The Class 801 has one GU for a five to nine-car set. These provide emergency power for limited traction and auxiliaries if the power supply from the overhead line fails. The Class 800 and Class 802 bi-mode has three GU per five-car set and five GU per nine-car set. A five-car set has a GU situated under vehicles 2/3/4 and a nine-car set has a GU situated under vehicles 2/3/5/7/8.

There have been rumours of overheating.

Hitachi’s Regional Battery Train

Hitachi have teamed up with Hyperdrive Innovation to create a Regional Battery Train. There is this Press Release on the Hyperdrive Information web site, which is entitled Hitachi Rail And Hyperdrive Agreement P[ens Way For Battery Trains Across Britain.

This Hitachi infographic gives the specification.

Note, that this is a 100 mph train, with a range of 56 miles.

Typical routes would include a route like Norwich and Stansted Airport via Cambridge.

  • It is 93 miles.
  • There are thirty-nine miles of electrification at the Stansted Airport end.
  • Norwich station is fully-electrified.
  • There is just 53 miles between the Trowse swing-bridge and Ely station, that is not electrified.

Trains would charge the batteries at both ends of the route and use battery power, where no electrification exists.

There are many similar routes like this in the UK.

Hitachi have also produced this video.

My thoughts lead me to a few questions.

Are The Battery Modules Simulated Diesel Engines?

At the age of sixteen, for a vacation job, I worked in the Electronics Laboratory at Enfield Rolling Mills.

It was the early sixties and one of their tasks was at the time replacing electronic valve-based automation systems with new transistor-based systems.

The new equipment had to be compatible to that which it replaced, but as some were installed in dozens of places around the works, they had to be able to be plug-compatible, so that they could be quickly changed. Occasionally, the new ones suffered infant-mortality and the old equipment could just be plugged back in, if there wasn’t a spare of the new equipment.

Stadler have three very similar trains, that are destined for the UK.

All share the same PowerPack-in-the-Middle design, which is shown in this picture.

There are four slots in the PowerPack, with two on either side and they can all hold, either a diesel engine or a battery. Only, the Class 756 trains, are planned to have batteries at present, to make the trains tri-mode and capable of being powered by overhead electric, on-board batteries or a diesel generator.

If I was designing the battery modules to slot into the PowerPack, I and many other engineers would make the battery module deliver similar characteristics and plug compatibility to the diesel module.

The train’s control computer, would be simpler to program and debug and would use modules appropriately to drive the train according to the driver’s instructions.

This interchangeability would also give the operator lots of flexibility, in how they configured and used the trains.

So will Hyperdrive Innovation use an approach for Hitachi, where the battery module has similar characteristics and plug compatibility to the current diesel module?

I wouldn’t be surprised if they did, as it allows modules to be quickly swapped as operational needs change and the train’s computer sorts out the train’s formation and acts accordingly.

On An Hitachi Regional Battery Train Will All Diesel Engines Be Replaced With Battery Modules?

If the computer is well-programmed, it should handle any combination of diesel engines and battery modules.

Perhaps for various routes different combinations might apply.

  • For maximum battery range, all modules would be batteries.
  • For maximum power, all modules would be diesel engines.
  • To handle some out and back routes, there might be three battery modules and a diesel engine to charge the batteries before return.
  • Could perhaps one or two battery modules be fitted to avoid using the diesel engines in stations and in sensitive areas?

On some routes all diesel engines will be replaced with batteries on Battery Regional Trains, but on others there could be a mixture of both battery and diesel engines.

It should be noted that Stadler achieve the same flexibility with their PowerPack-in-the-Middle design.

Operators will like this flexibility.

What Is The Capacity Of A Battery Module?

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

I can do a simple estimate based on this figure.

When running on batteries the train will need less energy due to less air resistance, because it is going at 100 mph, rather than 125 mph.

  • If the energy use is proportional to the speed, then at 100 mph, the energy use will be 2.73 kWh per vehicle mile.
  • But if the energy use is proportional to the square of the speed, the energy use will be 2.19 kWh per vehicle mile.

I will compromise and use 2.5 kWh per vehicle mile.

Total energy needed to move a five-car train 56 miles would be 5 x 56 x 2.5 or 700 kWh, which could be three batteries of 233 kWh.

These are not outrageous sizes and the batteries could probably be of a comparable weight to the current diesel engines. So replacement wouldn’t affect the handling of the train.

In addition, the batteries would need to be large enough to hold all the regenerated by braking during a stop.

  • The weight of a Class 800 train is 243 tonnes.
  • It can carry 326 passengers, who probably weigh 80 Kg with baggage, bikes and buggies.
  • This gives a total train weight of 269 tonnes.
  • Using Omni’s Kinetic Energy Calculator, the kinetic energy at 100 mph is just 75 kWh.
  • For completeness, at 125 mph, the kinetic energy is 117 kWh and at 140 mph, the kinetic energy is 146 kWh.

All these figures are small compared to the battery size needed for traction.

Will East Coast Train’s Class 803 trains Use The Same Technology?

On East Coast Trains‘s Class 803 trains, batteries will be fitted to maintain onboard services, in case of a power failure.

Have these batteries been designed by Hyperdrive Innovation, with perhaps less capacity?

As East Coast Trains’s route between London Kings Cross and Edinburgh is fully electrified, the trains probably won’t need any auxiliary traction power.

But would increasing the battery size make this possible?

Where Do Avanti West Coast Class 807 Trains Fit In?

Avanti West Coast‘s Class 807 trains are also members of the same Hitachi A-Train family.

In the January 2020 Edition of Modern Railways, there is an article, which is entitled Hitachi Trains For Avanti.

This is said about the ten all-electric AT-300 trains for Birmingham, Blackpool and Liverpool services, which have now been numbered as Class 807 trains.

The electric trains will be fully reliant on the overhead wire, with no diesel auxiliary engines or batteries.

It may go against Hitachi’s original design philosophy, but not carrying excess weight around, must improve train performance, because of better acceleration.

It may also have the wiring for a diesel engine or a battery module, should operational experience indicate one is needed.

Will All Cars Be Wired Ready For A Diesel Or Battery Module?

A five-car Class 802 train currently has a diesel engine in cars 2, 3 and 4.

The Hitachi infographic says that a Regional Battery Train has a range of 56 miles on batteries.

Let’s assume that this range applies to a Class 802 train, that has been fitted with three battery modules.

If we take Hull Trains as an example, their Class 802 trains do the following sections using their diesel engines

  • Temple Hirst Junction and Beverley – 44.34 miles or 87 miles round trip
  • Temple Hirst Junction and Hull – 36 miles or 72 miles round trip

These distances mean that with a 56 mile range, there needs to be some form of changing at Hull and/or Beverley.

But supposing all cars are wired to accept batteries or diesel engines. This could mean the following.

  • A train with three batteries and a range of 56 miles, could fit a standard diesel engine as a range extender, which could also be used to charge the batteries at Hull or Beverley.
  • A train with four batteries, could have a range of 75 miles, which with regenerative braking and precise energy-saving driving could be able to go between Temple Hirst Junction and Hull and back on battery power.
  • A train with four batteries and a diesel engine,, could have a range of 75 miles on battery power. The diesel energy could be used as a range extender or to charge the batteries at Hull and/or Beverley.
  • Could a train with five batteries, which could have a range of 90 miles, be able to reach Beverley and return to Temple Hirst Junction?

Note.

  1. I have assumed that battery range is proportional to the number of batteries.
  2. There must also be scope for running slower to cut the amount of energy used.

In addition, all Hull Trains schedules seem to spend fifteen minutes or more in Hull station. This would be enough time to recharge the batteries.

I’m fairly certain, that if all cars were wired  for batteries or diesel engines, it would give the operators a lot of flexibility.

Running With Batteries And A Range Extender Diesel Engine

The LEVC TX taxi is described as a plug-in hybrid range extender electric vehicle, where a small petrol engine, can also be used to generate electricity to power the vehicle.

Suppose a Class 802 train was fitted with two battery modules and a diesel engine. Could the diesel act as a range extender, in the same way as the petrol engine does on the LEVC TX?

The diesel engines fitted to a Class 802 train are 700 kW, so if I’m right about the train having total battery capacity of 700 kWh, one engine would take an hour to charge the batteries.

Returning to my Hull Trains example, drivers could probably ensure that the train didn’t get stranded by judicial use of the a single diesel engine to charge the batteries, whilst running in rural areas along the route.

As there would only be one diesel engine rather than three, the noise would be much lower.

I suspect too, that a simple charger in Hull station could charge a train, as it passes through, to make sure it doesn’t get stranded in the countryside.

I suspect that a mix of batteries and diesel engines could be part of an elegant solution on some routes.

  • Edinburgh and Aberdeen
  • Edinburgh and Inverness
  • London Kings Cross and Hull
  • London Paddington and Swansea
  • London St. Pancras and Sheffield.
  • London St. Pancras and Nottingham

It might also be a useful configuration on some TransPennine routes.

Charging Battery Trains

Having a charger in a terminal station would open up a lot of routes to Hitachi’s battery electric trains.

At stations like Hull and Scarborough, this charger could be as simple as perhaps forty metres of 25 KVAC overhead electrification.

  • The train would stop in the station at the appropriate place.
  • The driver would raise the pantograph.
  • Charging would start.
  • When the battery is fully-charged, the driver would lower the pantograph.

This procedure could be easily automated and the overhead wire could be made electrically dead, if no train is connected.

It should be noted that Hitachi have recently acquired ABB’s power grid business, as announced in this Hitachi press release which is entitled Hitachi Completes Acquisition of ABB’s Power Grids Business; Hitachi ABB Power Grids Begins Operation.

Rail is not mentioned, but mobility is. So will this move by Hitachi, strengthen their offering to customers, by also providing the systems in stations and sidings to charge the trains.

This Google Map shows Hull station, with its large roof.

Could an integrated solution involving solar panels over the station be used to power electrification to charge the trains and dome electric buses next door?

Integrated solutions powered by renewable energy would appeal to a lot of municipalities seeking to improve their carbon profile.

Conclusion

These trains will transform a lot of rail services in the UK and abroad.

 

 

 

 

 

October 9, 2020 Posted by | Transport | , , , , , , , , , | 3 Comments

Why The Covids Are Worse In The North

Dr. Chris Smith is BBC Radio 5’s tame virologist and he talks more sense than most on the Covids.

Asked by Adrian Chiles, why the Covids are worse in the North, he made following points.

  • The Covids are following a similar pattern to flu.
  • Flu tends to like colder climate, so is more prevalent in the North.
  • He also indicated, that because London had a bad dose of the Covids earlier in the year, London may be closer to some form of herd immunity.

If you can catch-up with what he said, it’s probably worth a listen.

October 9, 2020 Posted by | Health | , , | 5 Comments