Siemens Mireo

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Siemens Mireo
J41 263 Bf Falkenberg (E), 463 608.jpg
DB 463 308 of DB Regio operating for the VBB at Falkenberg/Elster in June 2023
Manufacturer Siemens Mobility at Waggonfabrik Uerdingen, Krefeld, NRW, Germany
Number built93 (two-car sets)
189 (three-car sets)
49 (four-car sets)
Predecessor Siemens Desiro ML
Specifications
Train length52–140 m (170 ft 7 in – 459 ft 4 in)
Width2.808 or 3 m (9 ft 2.6 in or 9 ft 10.1 in)
Height4.208 m (13 ft 9.7 in)
Wheel diameter
  • New: 880 mm (35 in) [1]
  • Worn: 810 mm (32 in) [1]
Wheelbase
Maximum speed140 or 160 or 200 km/h (85 or 100 or 125 mph)
Weight112 t (110 long tons; 123 short tons) (three-car sets)
Axle load 20 t (20 long tons; 22 short tons)
Traction system Siemens IGBT-VVVF
Power output2,600 kW (3,500 hp)
Tractive effort 300 kN (67,000 lbf)
Acceleration around 1.2 m/s (3.9 ft/s)
Electric system(s) 15 kV  16.7 Hz AC from overhead catenary
Current collector(s) Pantograph (electric)
UIC classification Bo'2'2'2'Bo' (four-car sets)
Bogies Siemens SF7500 [1]
Safety system(s) PZB, LZB, ETCS

The Siemens Mireo is a family of electric multiple units (EMU) designed by Siemens Mobility. It is designed to be a successor to the "Mainline" variant of the company's Desiro EMUs. [2]

Contents

The railcars have an articulated design and aluminum carbodies, with 26 meters (85 ft) cab cars on each end of a trainset and 19 meters (62 ft) passenger cars between them, with trainsets between two and seven cars long. [2] The use of aluminum, combined with new control systems, is intended to reduce energy use by up to 25% compared to previous Siemens EMUs. [3] The railcars can reach a top speed of up to 160 km/h (100 mph). [2] Siemens Mobility is currently working on a hydrogen fuel cell prototype. [4]

Siemens introduced the first Mireo railcars at the 2016 InnoTrans trade fair. [2] The first units were ordered in February 2017 by DB Regio, which ordered 24 three-car trainsets with a passenger capacity of 220 for service on its routes in the Rhine valley in southwestern Germany. [3] DB Regio ordered a further 57 three-car high-density sets for S-Bahn service. [4] [5] Production of Mireo trainsets began in 2018, with the first completed set unveiled in early December. [5] [6] Following testing, Mireo trains are expected to enter revenue service in June 2020. [6]

Mireo Smart

In November 2020, Siemens unveiled the Mireo Smart. This is a standardized product aiming for attractive pricing and faster delivery. [7] It includes features such as more advanced CCTV systems, improved passenger information systems, and full testing before delivery. [8]

Siemens Mobility founded the subsidiary company „Smart Train Lease GmbH“ (STL) in February which allows for near-term leases of Mireo-Smart trainsets. [9] [10] The vehicle fleet for the German market will be established during 2024 comprising initially of 12 Mireo Smart, two Plus B and six Plus H. Smart Train Lease expects a common lease to run for one to eight years with a lead time of several months. [11]

Mireo Plus

The Mireo has two variants to run on unelectrified sections. These can be distinguished by their longer high-floor section at the start of the train (four windows instead of three) where the additional devices are placed underneath. They are in passenger service since 2024.

Mireo Plus H

Siemens and Ballard Power Systems are developing a fuel cell system for the trains, which is expected to be operational in 2021. [5]

Mireo Plus B

Siemens Mireo Plus H at Innotrans 2022 Siemens Mireo Plus H 563 101 (52393333051).jpg
Siemens Mireo Plus H at Innotrans 2022

A battery-equipped variant has been developed. [12] It can run on both electrified lines (taking current from the catenary) and unelectrified lines (using the batteries). It can travel 80 kilometres (50 mi) on unelectrified lines. [4]

In August 2019, NV Baden-Württemberg  [ de ] ordered 20 battery-electric Mireos. They will be used on the electrified Offenburg - Freudenstadt/Hornberg line (Kinzig Valley Railway) and on several unelectrified lines (Rench Valley Railway, Harmersbach Valley Railway and Acher Valley Railway)

These trains use Lithium-titanate batteries (LTO). Toshiba guaranteed 15,000 cycles at 10C by 2019 and 40,000 cycles at 10C by 2022. [13] The LTO batteries are replacing prior usage of supercaps in trains to store the energy from braking. [14]

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References

  1. 1 2 3 4 5 "MoComp Bogie SF7500 Platform for trains" (PDF). Siemens Mobility Austria GmbH . 2022-02-01. Archived (PDF) from the original on 2024-05-12. Retrieved 2024-12-03.
  2. 1 2 3 4 "Siemens to unveil Mireo modular EMU concept". Railway Gazette. 30 June 2016. Retrieved 17 February 2017.
  3. 1 2 "DB Regio places first order for Siemens Mireo". Railway Gazette. 17 February 2017. Retrieved 17 February 2017.
  4. 1 2 3 "Mireo EMU unveiled by Siemens". International Railway Journal. 2018-12-06. Retrieved 2019-08-06.
  5. 1 2 3 "Assembly of first Siemens Mireo EMU underway". Railway Gazette. 5 June 2018. Retrieved 6 June 2018.
  6. 1 2 "Siemens presents first Mireo EMU". Railway Gazette International. 7 December 2018. Retrieved 28 December 2018.
  7. ↑ "Mireo Smart: 100% focus on efficiency". press.siemens.com. Retrieved 2022-05-06.
  8. ↑ "Mireo Smart". Siemens Mobility Global. Retrieved 2022-05-06.
  9. ↑ "Flexibles Mietmodell für Regionalzüge: Smart Train Lease GmbH". Siemens Mobility. 2024-02-14. Retrieved 2024-02-14.
  10. ↑ "Flexibel und smart: Lösungen und Services". Smart Train Lease. Retrieved 2024-02-15.
  11. ↑ Mark Simmons (2024-02-27). "A new leasing model for Europe?". International Railway Journal . Simmons-Boardman Publishing. Archived from the original on 2024-02-27.
  12. ↑ "Mireo Plus B Ortenau FOR SFBW, BADEN-WÜRTTEMBERG, GERMANY" (PDF). Siemens Mobility GmbH . Archived (PDF) from the original on 2022-03-15. Retrieved 2024-12-03.
  13. ↑ https://www.global.toshiba/ww/products-solutions/battery/scib/product/cell/high-power.html
  14. ↑ Neue Batteriezüge mit Spezialakku - Jochen Steinbauer (Siemens Mobility) & Tobias Beckers (HLB) on YouTube, Batteriepodcast (Karlsruher Institut für Technologie), uploaded 2024-04-14
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