FV-E991 series

The FV-E991 series (FV-E991系) is a future hydrogen fuel cell electric multiple unit (EMU) train type to be operated by East Japan Railway Company (JR East) from 2021.[1]

FV-E991 series
Entered service2021 (planned)
Number under construction1 set (2 vehicles)
Formation2 cars per unit
Operator(s)JR East
Line(s) servedFuture:
Specifications
DoorsThree per side
Maximum speed100 km/h (60 mph)
Acceleration2.3 km/h/s
Track gauge1,067 mm (3 ft 6 in)

This series will be used as a test unit to collect data for future practical use of fuel cell vehicles. Starting in 2021, JR East will conduct tests on the Tsurumi and Nambu lines and expects to have the technology ready for commercial application by 2024. On June 4, 2020, the company announced that it will invest ¥4 billion in the development of this series, which is the new generation of the Fuel Cell New Energy Train experimental unit.[2]

The FV acronym (of the series numbering: FV-E991) stands for Fuel cell Vehicle and the E for East (because this series is to be operated by East Japan Railway Company).

Fuel cell system

This series is equipped with a hybrid system that uses hydrogen as fuel and an electric battery as a power source. It works in generating electricity using compressed hydrogen (stored in the train) and oxygen (from the air). Then, the electricity is stored on batteries and is used to power the motors and the rest of the train. These trains only emit water and heat, so they are considered zero-emission vehicles (ZEV).[1] The maximum speed of these units is expected to be 100 km/h (62 mph) and the range 140 km (87 mi) when the storage units are filled at 70 MPa (690 atm) (maximum filling pressure). When those are filled at 35 MPa (350 atm) the expected range is 80 km (50 mi).[1]

The trailer car will have the hydrogen storage units installed on the roof. There will be 4 carbon fiber banks, each one will have five 51 liter modules. That makes a total of 1020 liter per unit. There will be two pumping units, one on the roof (near the hydrogen storage unit) and the other under the floor (near the fuel cell device). Which will be used to pump hydrogen from the banks to the fuel cell device. The fuel cell device will have two 180kW polymer fuel cell stacks and will be installed under the floor. Those will be able to operate at temperatures down to −10 °C (14 °F) and supply electricity for two 25kWh li-ion electric batteries. They will be located under the powered car floor. Those batteries power a VVF converter with twin inverters to feed the four 95kW traction motors.[2]

Operations

This series is scheduled to operate on the following lines by 2021 as a test unit:[1]

Formation

The FV-E991 series will be formed as follows, consisting of two cars.[1]

Car No. 12
Designation MzcTzc'
Numbering FV-E991FV-E990

See also

References
  1. "JR東日本、水素燃料電池試験車 FV-E991系2両を製造＿2021年度から実証試験" (in Japanese). Japan. 4 April 2019. Retrieved 8 September 2020.
  2. "JR East to trial fuel cell multiple-unit". railwaygazette.com. DVV Media International. 7 June 2019. Archived from the original on 10 September 2020. Retrieved 20 September 2020.
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