Simulation and analysis of the aeroelastic-galloping-based piezoelectric energy harvester utilizing FEM and CFD

Haryanto, Ismoyo; Widodo, Achmad; Prahasto, Toni; Satrijo, Djoeli; Pradiptya, Iswan; Ouakad, Hassen M.

doi:10.1051/matecconf/201815901052

Cited by 6 publications

(3 citation statements)

References 6 publications

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“…It can be done either in lower (−20 C to 45 C) or higher (45 C to +110 C) temperatures (Figure 1). Solar, microwave, infrared, and radio frequency HP systems require higher temperatures while chemical, vacuum and cooling with dehumidified HP systems operate at relatively low temperatures (Artnaseaw, Theerakulpisut, & Benjapiyaporn, 2010;Goh et al, 2011;Yadav et al, 2016;Yohana et al, 2018). Cooling with dehumidifier HP can be assisted with solar power, coulomb force, single or dual stage heat pumps, and so on (Goh et al, 2011;Minea, 2015).…”

Section: Low-temperature Heat Pump Drying Methodsmentioning

confidence: 99%

Review on low‐temperature heat pump drying applications in food industry: Cooling with dehumidification drying method

Uthpala

Navaratne

Thibbotuwawa

2020

J Food Process Engineering

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Moisture content of food material is a key factor influencing the quality of storage and extending the quality of a food product. Manufacturers develop new technologies to process sensitive food materials to supply new products with improved properties and high quality. The process in which the air is cooled sensibly while the moisture is removed from food is called cooling with dehumidification process. The system fundamentally acts as a heat pump, which pumps the heat from the dehumidified air to a different air stream in another area, with the aid of a refrigerant gas to carry the heat. This article reviews the potential of low-temperature heat pump dehumidifier drying used in the food industry. Moreover, this describes the principle of cooling with dehumidification (CWD) process, the importance of studying psychrometric charts to understand CWD process, measures used in identify energy efficiency, comparison of this method over common dryers, applications, advantages and limitations of the CWD drying method. Practical applications Multiple measures have been taken to increase the drying efficiency of convection drying, especially by the application of cooling with dehumidified techniques. This drying technique has comparably higher energy efficiency, better and consistent product quality and the ability to control drying temperature and humidity over other conventional methods. Low-temperature heat pump dryers are used increasingly applications in the food industry for the drying of grains, fruits, vegetables, herbs, spices, fish, meat, pet foods, and other heat-sensitive food products in several countries. 1 | INTRODUCTION Drying is a unit operation that has been applied in different industries including food industry since ancient times (Hall, 2007; Hepbasli, Colak, Hancioglu, Icier, & Erbay, 2010). Drying preserves the product by removing some amount of water in the material, while freezing reduces its temperature below the freezing point of water. There are three ways to eliminate moisture from the air: by cooling it to condense water vapor, by increasing the total pressure which leads condensation and passing the air over a desiccant, which pulls moisture from the air through differences in vapor pressures (Dai

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Section: Low-temperature Heat Pump Drying Methodsmentioning

confidence: 99%

Review on low‐temperature heat pump drying applications in food industry: Cooling with dehumidification drying method

Uthpala

Navaratne

Thibbotuwawa

2020

J Food Process Engineering

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“…In small centimeter-size systems, piezoelectric transducers are checked to ensure good performance [5]. To improve the environmental adaptability and energy supply efficiency of the technology, researchers have proposed many energy harvesters, such as flow-induced vibration [6,7] and base vibration energy harvesters [8,9]. In early studies, researchers proposed and designed many linear vibration energy harvesters, and their dynamic characteristics and operating performance were thoroughly analyzed [10,11].…”

Section: Introductionmentioning

confidence: 99%

Energy Harvesting Using a Nonlinear Resonator with Asymmetric Potential Wells

et al. 2022

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This paper presents the results of numerical simulations of a nonlinear bistable system for harvesting energy from ambient vibrating mechanical sources. Detailed model tests were carried out on an inertial energy harvesting system consisting of a piezoelectric beam with additional springs attached. The mathematical model was derived using the bond graph approach. Depending on the spring selection, the shape of the bistable potential wells was modified including the removal of wells’ degeneration. Consequently, the broken mirror symmetry between the potential wells led to additional solutions with corresponding voltage responses. The probability of occurrence for different high voltage/large orbit solutions with changes in potential symmetry was investigated. In particular, the periodicity of different solutions with respect to the harmonic excitation period were studied and compared in terms of the voltage output. The results showed that a large orbit period-6 subharmonic solution could be stabilized while some higher subharmonic solutions disappeared with the increasing asymmetry of potential wells. Changes in frequency ranges were also observed for chaotic solutions.

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“…The increasing demand for energy lead to research focussed on the development of new technologies for alternative power sources. Currently, there is a tendency to replace energy from fossil fuels or nuclear sources with renewable sources based on wind [3,4] water, [5] or solar radiation [6]. In the case of low power, an alternative is to obtain electricity from vibrating mechanical systems via electrostatic [7], electromagnetic [8] and piezoelectric transducers [9,10].…”

Section: Introductionmentioning

confidence: 99%

Multiple Solutions of the Tristable Energy Harvester

et al. 2021

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This paper presents the results of numerical simulations of a non-linear, tristable system for harvesting energy from vibrating mechanical devices. Detailed model tests were carried out in relation to the system consisting of a beam and three permanent magnets. Based on the derived mathematical model and assuming a range of control parameter variability, a three-dimensional image of the distribution of the largest Lyapunov exponent was plotted. On its basis, the regions of chaotic and predictable movement of the considered system exist have been established. With reference to selected plane of the largest Lyapunov exponent cross-sections, possible co-existing solutions were identified. To identify multiple solutions, a diagram of solutions (DS) diagram was used to illustrate the number of existing solutions and their periodicity. The proposed calculation tool is based on the so-called fixed points of Poincaré cross-section. In relation to selected values of the control parameter w, coexisting periodic solutions were identified for which phase trajectories and basins of attraction were presented. Based on the model tests carried out, it was found that in order to efficiently harvest energy, appropriate transducer adjustment is required. Calibration of the transducer is necessary to obtain the greatest amplitude of vibration of the beam, which corresponds to the phase trajectory limited by external energy potential barriers. As expected, the average voltage induced on the electrodes of the piezoelectric transducer and the average electrical power recorded on the resistive element are directly proportional to the amplitude and average kinetic energy of the beam.

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Simulation and analysis of the aeroelastic-galloping-based piezoelectric energy harvester utilizing FEM and CFD

Cited by 6 publications

References 6 publications

Review on low‐temperature heat pump drying applications in food industry: Cooling with dehumidification drying method

Review on low‐temperature heat pump drying applications in food industry: Cooling with dehumidification drying method

Energy Harvesting Using a Nonlinear Resonator with Asymmetric Potential Wells

Multiple Solutions of the Tristable Energy Harvester

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