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Special Issue "Energy Harvesting and Energy-Neutral IoT Devices and Systems"

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Sensor Networks".

Deadline for manuscript submissions: 10 December 2019

Special Issue Editors

Guest Editor
Dr. Geoff Merrett

Centre for IoT and Pervasive Systems, University of Southampton, Southampton SO17 1BJ, UK
Website | E-Mail
Phone: +44 (0)23 8059 2775
Interests: mobile and embedded systems; power/energy management; energy harvesting; energy-driven computing; intermittent computing
Guest Editor
Dr. Domenico Balsamo

Electronics and Computer Science, University of Southampton, Southampton SO17 1BJ, UK
Website | E-Mail
Phone: +44 (0)23 8059 2774
Interests: embedded systems; energy harvesting systems; wireless sensor networks; transient computing; energy-/power-neutral systems

Special Issue Information

Dear Colleagues,

The recent momentum of the Internet-of-Things (IoT) is driving the need for embedded devices comprising one or more low-power and resource-constrained computing elements and sensors. Power management of these devices is emerging as a primary challenge for system designers, as they typically have to last for many years without intervention to charge or replace batteries. Energy harvesting (EH) offers the potential for low-power systems to operate without batteries, by generating electrical power from environmental sources. However, energy harvesting sources can be volatile, meaning that a steady power supply cannot be relied upon. For this Special Issue, we welcome high-quality submissions that describe original and unpublished research contributions advancing the frontiers on energy-harvesting IoT devices and systems, with particular emphasis on energy-/power-neutral and intermittent sensing systems.

Dr. Geoff Merrett
Dr. Domenico Balsamo
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

We solicit papers covering (but not limited to) one or more of the following topics:

  • Power management concepts, algorithms, and circuits for energy-harvesting sensing systems;
  • Architectures and standards for energy-neutral sensing systems;
  • Hardware and software concepts for intermittent computing;
  • Resource management and operating system support for energy-harvesting sensing systems;
  • Communication in intermittent-power domain;
  • Ensuring reliable operation in energy-harvesting sensor systems;
  • Modeling, simulation, and tools for effective design of future energy-harvesting sensing systems;
  • Internet of (battery-less) Things;
  • Experience with real-world deployments and innovative applications

Published Papers (2 papers)

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Research

Open AccessArticle Photovoltaic Energy Harvesting System Adapted for Different Environmental Operation Conditions: Analysis, Modeling, Simulation and Selection of Devices
Sensors 2019, 19(7), 1578; https://doi.org/10.3390/s19071578
Received: 27 February 2019 / Revised: 22 March 2019 / Accepted: 28 March 2019 / Published: 1 April 2019
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Abstract
The present research work proposes a photovoltaic energy harvester and an appropriate direct current (DC)/DC converter for a harvesting system after the study of the devices and taking the operation conditions. Parameters such as power, efficiency and voltage are taken into account under [...] Read more.
The present research work proposes a photovoltaic energy harvester and an appropriate direct current (DC)/DC converter for a harvesting system after the study of the devices and taking the operation conditions. Parameters such as power, efficiency and voltage are taken into account under different environment conditions of illumination and temperature in order to obtain the best possible response. For this reason, suitable metal-oxide semiconductor field-effect transistor (MOSFET), diode, coil, frequency, duty-cycle and load are selected and analyzed for a DC/DC converter with boost architecture. Full article
(This article belongs to the Special Issue Energy Harvesting and Energy-Neutral IoT Devices and Systems)
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Open AccessArticle Spatiotemporal Rule of Heat Transfer on a Soil/Finned Tube Interface
Sensors 2019, 19(5), 1159; https://doi.org/10.3390/s19051159
Received: 23 January 2019 / Revised: 25 February 2019 / Accepted: 4 March 2019 / Published: 7 March 2019
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Abstract
To efficiently harvest environmental micro-energy from shallow soil, simulated analysis, theoretical arithmetic and experimental verification are performed to explore the spatiotemporal rules of heat transfer on a soil/finned tube interface. Simulations are carried out for 36 types of different working conditions, and the [...] Read more.
To efficiently harvest environmental micro-energy from shallow soil, simulated analysis, theoretical arithmetic and experimental verification are performed to explore the spatiotemporal rules of heat transfer on a soil/finned tube interface. Simulations are carried out for 36 types of different working conditions, and the empirical formulas for temperature and heat flux are obtained. The temperature and heat flux can be calculated using the formulas if the soil temperature, soil moisture content and finned tube initial temperature are known. The simulations also show that the highest heat flux can reach approximately 0.30 mW/mm2, and approximately 1507.96 mW of energy can be harvested through the finned tube. Theoretical arithmetic indicates that the heat transfer rate of the copper finned tube is 76.77% higher than that of the bare tube, the highest rate obtained in any study to date. Results also show that the finned tube should be placed where the soil moisture is greater than 30% to get more heat from the soil. A field experiment is carried out in the city of Harbin in Northeast China, where a thermoelectric power generation device has been installed and temperature data have been monitored for a certain time. The results are in good agreement with those obtained from the simulation analysis. The heat transfer processes and heat transfer steady state on the soil/finned tube interface are revealed in this work and are of great importance for the use of geothermal energy. Full article
(This article belongs to the Special Issue Energy Harvesting and Energy-Neutral IoT Devices and Systems)
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Figure 1

Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: Analytical model of a WSN node operation with a modified threshold-type energy saving mechanism.
Author: Wojciech M. Kempa
Abstract: In the article a model of the operation of a WSN node with energy saving mechanism based on a threshold-controlled multiple vacation policy is considered. Every time when the queue of incoming packets directed to the node empties, a multiple vacation period is being initialized during which the receiving/transmitting of packets is blocked. In such a period successive vacations of a fixed constant durations are taken as far as at the end of one of them at least a pretermined number of N packets accumulated in the queue are detected. Then, at the completion epoch of this vacation the processing restarts normally. The analytical approach based on the conception of embedded Markov chain, integral equations and renewal theory is applied to study the queue-size transient behaviour. The explicit compact-form representation for the Laplace transform of the queue-size distribution at fixed time t is obtained. Simulation illustrational examples are attached as well.

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