![]() Since energy is stored in a fuel cell as a reservoir of fuel rather than as an integral part of the power source, fuel cells are expected to provide higher total energy for a given size or weight than batteries, calculated as Watt-hours per liter (Wh/1) or Watt-hours per kilogram (Wh/kg) due to the high amount of energy that can be stored in fuels such as hydrogen, sodium borohydride, methanol, ethanol, hydrocarbon. The increasing demand for a wide variety of commercial, portable, electronic appliances such as cellular phones, laptop computers, personal organizers, digital cameras, portable radios, notebook computers, personal digital assistants, embedded monitors, military devices and specialised devices such as autonomous sensors, clinical and diagnostic test devices, micro-analytical systems, global positioning systems etc., has spurred the development of micro power sources ( Lu et al., 2004 Choban et al., 2004). ![]() ![]() The advent of microelectromechanical systems (MEMS), micromachines, microsystems, integrated passive components and low power electronics for various types of functionalities has resulted in a surge of research in the development of power sources of matching configuration to meet the device requirements ( Chan et al., 2005 Yen et al., 2003). ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |