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The performance of the hybrid structures PV/TEG/STC which consist of photovoltaic cells PV, thermoelectric elements TEG and solar collector STC is studied in this paper function of different levels of illumination from 30 suns to 130 suns (1 sun = 1000 W/m2). The concentrated light is obtained using a solar simulator with four parabolic xenon lamps and an optical mixer to ensure the quasi homogenous...
Since the influence of temperature on the conversion efficiencies of photovoltaic (PV) cells and thermoelectric (TE) generators are totally different and opposite, the system operating temperature becomes a key parameter which significantly determines the utilization efficiency of the common PV-TE system on solar energy. In order to make the PV-TE system obtain higher energy utilization efficiency,...
This paper describes a model and its PSPICE simulation for a hybrid electric generator that is composed of a photovoltaic cell and a thermoelectric generator. The focus is to combine both models to obtain a hybrid system model. The electrothermal models of the photovoltaic cell and thermoelectric generator are described. The simulations are done using the NI Multisim electronic circuit simulators...
In this paper we introduce FYPSim, a system-level framework with application to the design of wireless sensor networks. We illustrate some of the key features of the proposed framework in terms of modeling energy harvesting technologies, evaluating energy storage technologies, and comparing energy prediction algorithms.
Every manufacturing process leaves waste to environment. Some waste must be controlled. Some waste can be utilized. Like the organic fertilizer plant, it leaves waste from chicken manure digestion of bacteria. The air pollution has ammonia gas and heat. The gas has to be deodorized by deodorizer tank. On the other hand, the heat can be harvested for electrical energy. The plant needs to monitor ammonia...
This paper presents the design of a wearable energy harvesting jacket, which harvests energy from solar and body heat in the outdoor environment. The energy harvesting system consists of 16 photovoltaic (PV) cells, 12 thermoelectric generators (TEGs), and five power management chips, and it charges two AAA NiMH batteries in series. The 16 PV cells are partitioned into four zones (chest, back, right...
A wearable, wireless 2-channel electro-encephalography (EEG) system has been realized which functions fully autonomously, without any batteries. It is fully powered by human body heat using a thermo-electric generator which can produce over 2 mW at 23degC. It uses two of IMECpsilas ultra-low power biopotential electronics chips to record high-quality EEG signals. The whole system consumes only 0.8...
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