چكيده به لاتين
Abstract:
The purpose of this thesis is Design of a hybrid flywheel bus to be used in Tehran city. Fuel consumption reduction is one of the most important benefit of using hybrid flywheel bus for Tehran city. In this thesis three driving cycle, UDC, Tehran urban bus Driving cycle, Tehran rapid bus driving cycle is used. The main cause of chosen the hybrid flywheel for Tehran urban bus is high efficient, low weight, low initial cost, Does not change the form of energy when storage energy that reduce energy waste, High efficiency in absorbing regenerative braking energy, low volume need to wrapping flywheel system, The ability to give so much energy in a short time for acceleration and etc.
For technical and economic feasibility of the flywheel hybrid bus, first commercial bus is modeling in AVL Cruise software, in choosing flywheel for hybrid bus, select power and speed of the flywheel the same for all states, By changing flywheel energy storage capacity calculate Duration of return of capital cost flywheel and refer to this calculation select optimal flywheel energy storage for every driving cycle.
The results of this thesis show, for UDC driving cycle, Flywheel energy storage capacity chosen 3 Mj that 36.64 Percent reduces fuel consumption and the initial cost of the flywheel within 1 year and 3 months and 25 days is returned. For Tehran urban bus driving cycle, Flywheel energy storage capacity chosen 2.2 Mj that 22.91 Percent reduces fuel consumption and the initial cost of the flywheel within 1 year and 4 months and 7 days is returned. For rapid urban bus driving cycle, Flywheel energy storage capacity chosen 1.4 Mj that 28.61 Percent reduces fuel consumption and the initial cost of the flywheel within 9 months and 27 days is returned.
Keywords: Flywheel hybrid bus, Optimized flywheel, Technical and economic feasibility, AVL Cruise software
