Renewable Energy
M. Esmaeili Shayan
Abstract
Environmentally sustainable metropolitan environments are characterized by their ability to effectively produce and distribute power while reducing their impact on the environment. Smart homes are essential in smart cities since they enhance sustainability and efficiency in urban settings. A key advantage ...
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Environmentally sustainable metropolitan environments are characterized by their ability to effectively produce and distribute power while reducing their impact on the environment. Smart homes are essential in smart cities since they enhance sustainability and efficiency in urban settings. A key advantage of smart homes is their capacity to diminish energy use and carbon emissions. This is accomplished by optimizing energy consumption in home appliances, which is customized to fulfill the individual requirements and preferences of consumers. However, there is still a need for further academic research to investigate and improve the functioning of intelligent residential homes in microgrids. To efficiently manage microgrids, it is crucial to gather and analyze large amounts of electrical data related to power production from microgrid sources and energy consumption of the loads. This study examines the use of Non-Intrusive Load Monitoring (NILM) methods to monitor electrical parameters of different loads in microgrids. The research focuses on the application of affordable smart meters that are equipped with Internet of Things (IoT) capabilities. An empirical study showcases the possibility of collecting significant data on microgrid operation via the deployment of an operational microgrid that integrates a hybrid wind-solar power source with a variety of home appliances.
Renewable Energy
M. R. Sheykholeslami; A. Rastgordani; A. Amoochi; A. Jabbari; A. Farahani; F. Shabani; S. Mazdak
Abstract
The ability to convert mechanical energy into electrical energy by piezoelectric materials makes them suitable alternatives to use in energy harvesters. So, the efficiency of a piezoelectric energy harvester is the main limitation. One of the desired approaches to increase efficiency is using a piezoelectric ...
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The ability to convert mechanical energy into electrical energy by piezoelectric materials makes them suitable alternatives to use in energy harvesters. So, the efficiency of a piezoelectric energy harvester is the main limitation. One of the desired approaches to increase efficiency is using a piezoelectric array in the harvester. In this paper, a numerical method has been used for the comparative study of series and parallel array behavior in different types of input force. The effect of input force type, frequency of input force, and type of array connection on energy harvester efficiency with the proposed design have been investigated. Numerical results have been verified with experiments. Results indicated that a series connection can produce 2.2 times the maximum voltage larger than a parallel connection. Also, they show that the input force shape function is the effective parameter for a piezoelectric energy harvester with an array structure. The results show a similar effect of the input force shape function on the behavior of piezoelectrics in both types of electric connections (parallel or series). In general, it can be seen that the waveform of the output voltage after applying the load with a square function was similar to its function. Also, the change in the parameters of the input force with the sinusoidal function causes a direct change in the same character of the generated voltage waveform.
