Design a fuel-cell – Supercapacitor hybrid locomotive with 640 horsepower and a traveling range of 500 km per fully charged hydrogen tank, and consumption rate of 500 Wh/km. The fuel cell provides the driving range and supercapacitor captures the regenerative breaking energy to run the accessories. Assume fuel cell efficiency at 50%. 1hoursepower = 750 W Calculate the size (volume in liter) of a pressurized hydrogen storage tank at 700 bar pressure to deliver the traveling range for the vehicle. Fuel cell voltage at the cell level is 1V. Calculate the volume of solid-state hydrogen storage tank for the vehicle if the solid NaAlH4 is used as a hydrogen storage material. The density of NaAlH4 is 2.8 g/cm3. Atomic weights: Na=23g, Al=27g, and H=1g Calculate the total amount of platinum catalyst loading inside the fuel cell stack, and cost of catalyst if Pt cost as $30/g. Assume catalyst loading on the anodes at 0.02mg/cm2 and 0.04mg/cm2 on the cathodes. Assume the fuel cell average current density one electrode plates at 1 A/cm2. The fuel cell average voltage is 400V. \ Design a supercapacitor with energy content twice of regenerative breaking energy of the vehicle at 50 V. Design the supercapacitor bank with unit cell with 3600F per cell and voltage of 2 V. The mass of the vehicle is 4,500kg, and an average speed 72 km/h.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Design a fuel-cell – Supercapacitor hybrid locomotive with 640 horsepower and a traveling range of 500 km per fully charged hydrogen tank, and consumption rate of 500 Wh/km. The fuel cell provides the driving range and supercapacitor captures the regenerative breaking energy to run the accessories. Assume fuel cell efficiency at 50%. 1hoursepower = 750 W

Calculate the size (volume in liter) of a pressurized hydrogen storage tank at 700 bar pressure to deliver the traveling range for the vehicle. Fuel cell voltage at the cell level is 1V.

Calculate the volume of solid-state hydrogen storage tank for the vehicle if the solid NaAlH4 is used as a hydrogen storage material. The density of NaAlH4 is 2.8 g/cm³.

Atomic weights: Na=23g, Al=27g, and H=1g

Calculate the total amount of platinum catalyst loading inside the fuel cell stack, and cost of catalyst if Pt cost as $30/g. Assume catalyst loading on the anodes at 0.02mg/cm² and 0.04mg/cm² on the cathodes. Assume the fuel cell average current density one electrode plates at 1 A/cm². The fuel cell average voltage is 400V. \

Design a supercapacitor with energy content twice of regenerative breaking energy of the vehicle at 50 V. Design the supercapacitor bank with unit cell with 3600F per cell and voltage of 2 V. The mass of the vehicle is 4,500kg, and an average speed 72 km/h.

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