نتایج جستجو برای: fuel cell vehicle
تعداد نتایج: 1838780 فیلتر نتایج به سال:
In the present study, a model of a large Lithium Polymer (Li-Po) battery for use in the simulation of Hybrid Electric Vehicles (HEVs) is developed. To attain this goal, an Equivalent Circuit (EC) consisting of a series resistor and two RC parallel networks is considered. The accuracy and the response time of the model for use in an HEV simulator are studied. The battery parameters identifica...
Nowadays, environmental pollution is increasing more and more and in the big cities, because of the concentration of the population, is more intense. Air pollution in the big cities has become a serious problem especially in Iran. High fossil fuel consumption of vehicles is a major cause to increase in the amount of air pollution. Using new technology of powertrain, like other developed countri...
modeling the heat and mass transport in micro channel is being used extensively in researches and industrial applications. the aim is optimizing fuel cell designs before building a prototype for engineering application. in this study, numerical, three-dimensional, single phase computational fluid dynamics model of a proton exchange membrane fuel cell with both the gas distribution flow channels...
This paper describes a recently introduced vector-valued representation of fundamental frequency variation – the FFV spectrum – which has a number of desirable properties. In particular, it is instantaneous, continuous, distributed, and well-suited to application of standard acoustic modeling techniques. We show what the representation looks like, and how it can be used to model prosodic sequen...
In this paper, a finite time thermodynamic model of high temperature proton exchange membrane fuel cell (HT-PEMFC) is established, in which the irreversible losses polarization and leakage current during operation are considered. The influences operating temperature, thickness, phosphoric acid doping level, hydrogen oxygen intake pressure on maximum output power density Pmax efficiency ?max stu...
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