The subject of maintenance is of much importance in the implementation of projects in today’s industries. Maintenance is carried on energy systems to keep their performance within acceptable standards and to maintain...The subject of maintenance is of much importance in the implementation of projects in today’s industries. Maintenance is carried on energy systems to keep their performance within acceptable standards and to maintain their average life expectancy. The cost associated with maintenance work is largely dependent on how often maintenance routines are carried out and the extent the work are done. Current maintenance work are usually carried out in accordance with the equipment manufacturer’s guide line and modified by experts as maintenance experience is gained. This paper discusses the various maintenance schemes and the impact of maintenance on the life cycle costs of a system.展开更多
The Battery Charger Specification presents solution for rechargeable batteries used in portable electronic equipment such as laptop computer systems, cellular telephones and video cameras and the demands for low cost ...The Battery Charger Specification presents solution for rechargeable batteries used in portable electronic equipment such as laptop computer systems, cellular telephones and video cameras and the demands for low cost battery chargers are rising these days without give attention for the performance. The goal of the paper was combining high efficiency and versatility with low-cost design and this paper includes the design of the snubber cell, and the components of the current/voltage control charge method. This charger applies a relatively constant current and constant voltage to the battery indefinitely regardless of the AC input rang voltage all the equations described in this paper. The design of prototype converter is verified through an experimental result.展开更多
文摘The subject of maintenance is of much importance in the implementation of projects in today’s industries. Maintenance is carried on energy systems to keep their performance within acceptable standards and to maintain their average life expectancy. The cost associated with maintenance work is largely dependent on how often maintenance routines are carried out and the extent the work are done. Current maintenance work are usually carried out in accordance with the equipment manufacturer’s guide line and modified by experts as maintenance experience is gained. This paper discusses the various maintenance schemes and the impact of maintenance on the life cycle costs of a system.
文摘The Battery Charger Specification presents solution for rechargeable batteries used in portable electronic equipment such as laptop computer systems, cellular telephones and video cameras and the demands for low cost battery chargers are rising these days without give attention for the performance. The goal of the paper was combining high efficiency and versatility with low-cost design and this paper includes the design of the snubber cell, and the components of the current/voltage control charge method. This charger applies a relatively constant current and constant voltage to the battery indefinitely regardless of the AC input rang voltage all the equations described in this paper. The design of prototype converter is verified through an experimental result.
