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Applied Electrical and Mechanical Science
Published in Mike Tooley, BTEC First Engineering, 2010
Mechanical power is defined as the rate of doing work. Hence: Power=work donetime taken
Enhanced performance of the mechanical respiratory system by FPGA-digital based on PID Controller
Published in Cogent Engineering, 2023
Dang Quy Phan, Ha Quang Thinh Ngo
Our aim is to integrate FPGA technology into the mechanical ventilator to enhance and maintain the system’s high performance. Historically, much of the related research has focused on ventilator-associated medical conditions, such as pneumonia (Zhao et al., 0000) or lung injuries (Gaver et al., 2020). In recent times, mechanical power has garnered significant attention for studying the impacts of ventilator parameters (Giosa et al., 2019; Silva et al., 2019). Within the realm of mechatronic engineering, considerable efforts have been invested in developing robust designs and controls for ventilators (Arcos-Legarda & Tovar, 2021; Martell et al., 2022; Ramos-Paz et al., 2020). While several learning techniques (Behravan et al., 2019; Marzetti et al., 2021) have been explored, there is still a lack of a high-tech solution that encompasses a combination of logic control circuits and hardware programming.
A Proposed Hybrid Model for Electric Power Generation: A Case Study of Rajasthan, India
Published in IETE Journal of Research, 2023
Parag Nijhawan, Manish Kumar Singla, Jyoti Gupta
Wind energy is generated from the wind turbine, which converts the kinetic energy from the wind into mechanical energy, and it is the main component of the wind system [10]. Horizontal axis wind turbine (HAWT) is the most commonly used type of wind turbine [11]. Gearbox and rotor shaft and generator include the main components of the wind system, which are mainly situated at the top of the tower, and these must be directed in the direction of the wind. The gearbox changes the blades slower rotation to faster rotations, which are better suited for moving the generators. Hence, the lower wind speed doesn’t affect that much the power generation capacity of system. After the generation of mechanical power, the generator system converts mechanical energy into electrical energy. In this paper, a Doubly Fed Induction Generator (DFIG) is used. DFIGs are generally considered in a wind turbine because of their ability to control power and can be operated at varying speeds. DFIG also provides great efficiency due to its lower power loss. DFIG is named doubly as power can be delivered by both the stator and rotor of the generator system. Reactive power can be regulated through any of the system sides i.e. grid side or generator side. Grid is directly interfaced with the stator, and rotor of the generator is connected using a power converter.
Estimation of mechanical power and energy cost in elite wheelchair racing by analytical procedures and numerical simulations
Published in Computer Methods in Biomechanics and Biomedical Engineering, 2018
Pedro Forte, Daniel A. Marinho, Jorge E. Morais, Pedro G. Morouço, Tiago M. Barbosa
The resistance acting upon the wheelchair racing sprinter increased with speed and varied across the different key-moments of the stroke cycle. The mechanical power and energy cost increased with speed. The phase demanding more power and energy cost was the catch phase, followed-up by the release and then the recovery phases. Athletes should maintain a proper body alignment and synchronization during the stroke cycles, enabling to reach and keep a maximal speed with a lower energy cost. Coaches and other practitioners can use these findings to carry out and evidence-based practice helping the athletes to improve their efficiency.