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Challenging and development of phosphors for lighting applications

AIP Conference Proceedings 2016年第1期1712卷

作者： Camellia Panatarani I. Made Joni Instrumentation System and Functional Material Processing Lab. Department of Physics Faculty of Mathematics and Natural Sciences Universitas Padjadjaran Jalan Raya Bandung-Sumedang KM 21 Jatinangor 45363 West Java Indonesia

Phosphors (inorganics luminescent material) have been extensively investigated due to their potential application especially for lighting. This article briefly reviews the developments of the phosphors for lighting application. Research and development of phosphors for the application of energy-saving lamps have been developed in the lab.ratory of instrumentation system and functional materials processing, Department of Physics, Universitas Padjadjaran. To fulfill the desired feature for lighting application, we developed host-center type phosphor with compositional modifications prepared by spray pyrolysis and simple solution routes. In order to meet the industry requirement with high production rate, currently we scaled up the spray pyrolysis utilized with a pulse combustion reactor.

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Development of a smart DC grid model

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AIP Conference Proceedings 2016年第1期1719卷

作者： Amty Ma’rufah Ardhiyah Dalimunthe Jajat Yuda Mindara Camellia Panatarani I. Made Joni Lab. of Instrumentation System and Functional Material Processing Physics Department Faculty of Mathematics and Natural Sciences Padjadjaran University Jl. Raya Bandung-Sumedang KM21 Jatinangor 45363 Jawa Barat Indonesia

Smart grid and distributed generation should be the solution of the global climate change and the crisis energy of the main source of electrical power generation which is fossil fuel. In order to meet the rising electrical power demand and increasing service quality demands, as well as reduce pollution, the existing power grid infrastructure should be developed into a smart grid and distributed power generation which provide a great opportunity to address issues related to energy efficiency, energy security, power quality and aging infrastructure systems. The conventional of the existing distributed generation system is an AC grid while for a renewable resources requires a DC grid system. This paper explores the model of smart DC grid by introducing a model of smart DC grid with the stable power generation give a minimal and compressed circuitry that can be implemented very cost-effectively with simple components. The PC based application software for controlling was developed to show the condition of the grid and to control the grid become ‘smart’. The model is then subjected to a severe system perturbation, such as incremental change in loads to test the performance of the system again stability. It is concluded that the system able to detect and controlled the voltage stability which indicating the ability of power system to maintain steady voltage within permissible rangers in normal condition.

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