Abstract Starting from the observation that reduced state of a system strongly coupled to bath is, in general, an athermal state, we introduce and study cyclic battery–charger quantum device is thermal equilibrium, or ground during charge storing stage. The cycle has four stages: equilibrium storage stage interrupted by disconnecting battery charger, then work extracted battery, reconnected wit...

With the increase in number of electric vehicles (EVs) and developments their related charging infrastructures, consumers have still some concerns about limiting factors EV industry such as battery life, station availability, grid capacity, limited driving range, slow batteries. Although solutions are proposed for these limitations, they not sufficiently efficient cost-effective. Moreover, EVs ...

Battery life of cellular telephone is dependably been an issue for producers. Individuals are grumbling about their versa tile’s battery life, that they don't have long battery life and they need to charge their telephone a few times. Conveyable electronic gadgets are exceptionally well known these days. As the use of these movable electronic gadgets is expanding, the requests for more battery ...

Renewable energy is rapidly gaining importance as an energy resource as fossil fuel prices fluctuate. At the educational level, it is therefore critical for engineering and technology students to have an understanding and appreciation of the technologies associated with renewable energy. One of the most popular renewable energy sources is solar energy. This paper describes a capstone design pro...

This paper explains the design of a standalone Solar/ Fuel cell/ Battery hybrid power system which involves the design of individual systems along with the power management circuit. The variation of solar insolation according to the time and the Maximum Power Point Tracking’s (MPPT) Perturb and Observe (P&O) algorithm is considered in the design of solar system. Similarly, the control of fuel f...

The influence of electric vehicle charging stations on power grid harmonics is becoming increasingly significant as their presence continues to grow. This paper studies the operational principles of the charging current in the continuous and discontinuous modes for a three-phase uncontrolled rectification charger with a passive power factor correction link, which is affected by the charging pow...

Sonic jet chargers have originally been used in aerosol measurement devices for particle charging and neutralization. Here, our goal was to study if this charger type could be used in particle control devices in which particle concentrations and gas volumes are much higher. The study includes charging efficiency tests in a laboratory and with a commercial 20 kW wood pellet burner. Actual partic...

Because the charging process for Li+ batteries can take an hour or longer, testing a Li+ battery charger using its natural load (i.e., a battery) is time consuming and inconvenient. This application note presents a simple circuit for simulating the behavior of a Li+ battery, thus providing a more convenient method for testing Li+ battery chargers than using real batteries. A similar version of ...

Charging facilities, which are being constructed for the wide penetration of electric vehicles, generate massive amount of real-time status readings. The analysis of those streams provides a useful guideline for power provisioning and facility management. This paper builds a Hadoop-based framework which converts the raw stream data into manageable forms, filters necessary information fields, an...