Scientific Research Publishing

Read  full  paper  at： http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53916#.VNsO9yzQrzE Author(s)    Mehdi S. Kaddory Al-Zubaidy Affiliation(s) Faculty of Architecture and Environmental Design (IIUM), Gombak, Malaysia . ABSTRACT The damage which brought about global warming and climate change to heritage sites is more or less immutable. However, further deterioration could be slowed, if not stopped, with the patronization of green energy. Three sources of green energy, namely solar power, wind power, and hydropower were discussed in this research. Their indirect role in preserving heritage sites was examined and their cumulative effects on mitigating climate change were also cited. Results showed that the climate might have been continually changing for the past thousands of years. The effects of climate change and global warming on the arctic ice, carbon dioxide concentration, sea levels, global surface temperat...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52883#.VKtPgsnQrzE Author(s)   Razzaqul Ahshan , Mohammad Tariq Iqbal , George K. I. Mann , John E. Quaicoe Affiliation(s) Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John’s, Canada . ABSTRACT This paper presents experimental development and performance testing of an active power controller for stable and reliable operation of a micro-grid system. In order to achieve accurate and fast power balance in a micro-grid system that contains renewable energy sources, power in the system has to be regulated continuously. Such an objective can be achieved using droop based alternating current ...