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A Novel Thermoelectric Energy Harvester for Wireless Sensor Network Application

机译：用于无线传感器网络应用的新型热电能量收集器

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摘要

Sensor-based application of environmental monitoring has a huge potential but the only limiting factor is that it is battery operated and thus energy constraint. Energy harvesting is a boon as it helps in environmental monitoring applications. Thermoelectric energy harvesting (TEH) has been explored by researchers and they have proposed the various architecture of TEH systems. The temperature difference is the critical factor for developing TEH system as it directly affects the output energy of the system. In this paper, a novel thermoelectric energy harvester is proposed for wireless sensor network (WSN) based environmental monitoring application, which considers the change in temperature in a cyclic manner. Phase change material (PCM) used is of high latent heat and an intelligent algorithm is proposed that manages the heat energy and maintain the temperature gradient up to 2 degrees C. This results in heat flow in interchangeable orders during day and night, thus improving the overall output electrical energy. The intelligent algorithm and optimized framework of TEH system considering parameters affecting TEH facilitates the maintenance of AT. The system is fabricated and implemented using water as PCM. The overall energy output achieved is 10.23 J/g, which is sufficient to achieve a perpetual lifetime of WSN-based environmental monitoring systems.
机译：基于传感器的环境监控应用具有巨大的潜力，但唯一的限制因素是它是电池供电的，从而限制了能源。能量收集大有裨益，因为它有助于环境监测应用。研究人员已经探索了热电能量收集（TEH），他们提出了TEH系统的各种体系结构。温差是开发TEH系统的关键因素，因为它直接影响系统的输出能量。本文提出了一种新型的热电能量采集器，用于基于无线传感器网络（WSN）的环境监测应用，该传感器以循环方式考虑温度的变化。所使用的相变材料（PCM）具有较高的潜热，并提出了一种智能算法来管理热能并将温度梯度保持在2摄氏度以下。这导致热量在白天和晚上以可互换的顺序流动，从而改善了总输出电能。考虑参数影响TEH的TEH系统的智能算法和优化框架，有利于AT的维护。该系统是使用水作为PCM制造和实现的。实现的总能量输出为10.23 J / g，这足以实现基于WSN的环境监控系统的永久寿命。

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