Browse Publications Technical Papers 2019-26-0092
2019-01-19

Development of Hydrogen Fuel Cell Bus Technology for Urban Transport in India 2019-26-0092

Polymer Electrolyte Membrane Fuel Cell technology is considered for automotive applications due to easy start up and maintenance. Considering the requirement of storing of energy during braking for improved energy efficiency, hybrid of Fuel cell and battery is considered as power source. Hydrogen is used as fuel. Inline with National Hydrogen Energy Roadmap of Govt. of India which aims to develop and demonstrate hydrogen powered IC engine and Fuel Cell based vehicle, TATA Motors Ltd. has designed, developed and successfully demonstrated “Low Floor Hydrogen Fuel Cell Bus-LPO 1625” with complete integrated fuel cell power system, hydrogen storage and dispensing system. The fuel cell power system, converts the stored chemical energy in the hydrogen to DC electrical energy. The power generated is controlled, regulated, and used for powering the traction motor. The development of Fuel Cell bus consists of five stages: Powertrain sizing as per vehicle performance targets, Fuel cell stack selection and balance of plant design and development, Bus integration, Hydrogen refueling infrastructure creation and testing of Fuel cell bus. Fuel cell stack was integrated with balance of components, which includes air subsystem, hydrogen subsystem, and thermal management system and water recovery unit. Integrated fuel cell power system tested on test bench for the different power demands as per steady state and vehicle drive train conditions. Results of fuel cell power system testing on test bench and performance of fuel cell systems on the fuel cell vehicle is presented in this paper. Preliminary tests of the full unit generated a power of 85 kW at 275 VDC, which is capable of running Fuel cell bus up to 450 km with 30kg on-board hydrogen. Tata motors have built few fuel cell buses, which have covered 15000km cumulatively. Keywords: Polymer electrolyte fuel cells, Fuel cell bus, Fuel cell power system, Hybrid vehicles

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