Results 11 to 20 of about 7,440,062 (352)

Electrical efficiency of SECE-based interfaces for piezoelectric vibration energy harvesting

Smart materials and structures (Print), 2021
Piezoelectric energy harvesting interfaces have been widely investigated during the last decades in order to maximize the harvested power. Among the energy extraction circuits proposed in the literature, some of the most effective ones consist of ...
A. Morel, A. Brenes, D. Gibus, G. Pillonnet, A. Badel   +4 more
semanticscholar   +1 more source

System for Indoor Comfort and Health Monitoring Tested in Office Building Environment

Applied Sciences, 2023
The use of smart technologies and the Internet of Things (IoT) is becoming more and more popular in order to enhance the overall building performance by monitoring parameters related to occupants’ comfort and health in the built environment.
Lucia-Andreea El-Leathey, Paula Anghelita, Alexandru-Ionel Constantin, Gabriela Circiumaru, Rareș-Andrei Chihaia   +4 more
doaj   +1 more source

Effects of Active Cooling Techniques to Improve The Overall Efficiency Of Photovoltaic Module- An Updated Review [PDF]

E3S Web of Conferences, 2023
Our scientists have struggled for the last few decades to save the nation from the harmful emission caused by burning fossil fuel and restore enormous solar radiation energy.
Tiwari Mayank Kumar, Mishra Venktesh, Dev Rahul, Singh Nitin   +3 more
doaj   +1 more source

Electric current focusing efficiency in a graphene electric lens [PDF]

Journal of Physics: Condensed Matter, 2011
13 pages, 7 ...
Weihua, Mu, Gang, Zhang, Yunqing, Tang, Wei, Wang, Zhongcan, Ou-Yang   +4 more
openaire   +3 more sources

Photovoltaic Module Electrical Efficiency Enhancement Using Nano Fluids and Nano-Paraffin

, 2022
Today, photovoltaic modules have become accepted by the public and scientists in the production of clean electricity and as a possible alternative to electricity produced from fossil fuels.
“Miqdam T Chaichan, Muhaned Zaidi, H. Kazem, K. Sopian   +3 more
semanticscholar   +1 more source

Improving the Energy Conversion Efficiency for Hydrokinetic Turbines Using MPPT Controller

Applied Sciences, 2020
The research presented in this paper involves the design of a power control system for a hydrokinetic turbine previously tested in real operating conditions.
Rareș-Andrei Chihaia, Ionuț Vasile, Gabriela Cîrciumaru, Sergiu Nicolaie, Emil Tudor, Constantin Dumitru   +5 more
doaj   +1 more source

Efficiency Analysis of SMA-Based Actuators: Possibilities of Configuration According to the Application

Actuators, 2021
Shape memory alloy (SMA) actuators have recently demonstrated their potential for various applications in fields such as robotics, medicine, aerospace, and automotive.
Janeth Arias Guadalupe, Dorin Copaci, David Serrano del Cerro, Luis Moreno, Dolores Blanco   +4 more
doaj   +1 more source

Energy efficiency measurement procedure for gearboxes in their entire operating range [PDF]

, 2014
Over the last decade, forced regulations and a growing social awareness with respect to energy efficiency have resulted in a renewed interest in the research for high efficient electrical machines.
Algoet, Elewijn, Defreyne, Pieter, Derammelaere, Stijn, Dereyne, Steve, Stockman, Kurt, Verbelen, Florian   +5 more
core   +1 more source

An inertia‐emulation‐based cooperative control strategy and parameters design for multi‐parallel energy storage system in islanded DC microgrids

IET Generation, Transmission & Distribution, 2022
This paper proposes an inertia‐emulation‐based cooperative control strategy for the multi‐parallel energy storage system (ESS) to meet the requirements of state‐of‐charge (SoC) balance, inertia enhancement and zero‐steady‐state voltage deviation.
Gang Lin, Jiayan Liu, Yang Zhou, Yong Li, Christian Rehtanz, Shaoyang Wang, Pengcheng Wang, Wei Zuo   +7 more
doaj   +1 more source

Experimental thermal and electrical performances of a PVT-air collector coupled to a humidification-dehumidification (HDH) cycle

International Journal of Renewable Energy Development, 2023
Despite their low electrical efficiencies, PVs are widely used to generate electricity from abundant solar energy. In order to maximize the utilization of incident solar energy, PVT collectors have been used to simultaneously generate electricity and ...
Ahmed Ghazy
doaj   +1 more source