Friction and wear performance of disc brake pads and pyroelectric energy harvesting

Tabbai, Yassine; Alaoui‐Belghiti, Amine; Moznine, Reddad El; Belhora, Fouad; Hajjaji, Abdelowahed; Ballouti, Abdessamad El

doi:10.1007/s40684-020-00195-6

Cited by 25 publications

(8 citation statements)

References 28 publications

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“…As the thickness of the bimetallic beam increases, the heat transfer from the heat source to the H‐PEH layer decreases and decreases temperature fluctuation and power. [ 84 ] Also, as the beam thickness increases, the stiffness increases and decreases vibration amplitudes, reducing the power produced by piezoelectricity. [ 85 ] The highest power of 77.19, 6.34, and 73.57

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for pyroelectric, piezoelectric, and combined effect is obtained at a total beam thickness of 0.4 mm.…”

Section: Resultsmentioning

confidence: 99%

Exploiting the Potential of Pyroelectric–Piezoelectric Hybrid Devices for Low‐Grade Thermal Energy Harvesting

Gaur,

Saurabh,

Patel

2023

Energy Tech

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This study proposes a separate and combined (pyroelectric + piezoelectric) energy harvesting system using a bimetallic beam. Hybrid energy harvesting is achieved by waste thermal energy using thermal expansion mismatch of the bimetallic beam. In this regard, four types of design are proposed, along with various heating/cooling cycles. Auxetic layers in a bimetallic beam are used to enhance the power. The best‐performing design and heating/cooling cycle are considered for further power increment. Two models are simulated based on low (model C3) and high heat consumption (model C5). The load resistance, frequency, bimetallic beam and pyroelectric/piezoelectric layer thickness are varied and maximum power is obtained at 175 MΩ (C3), 75 MΩ (C5), 0.02 Hz (C3 and C5) and 0.4 mm (C3 and C5) as 20 μW (C3) and 40 μW(C5), respectively. The piezoelectric, pyroelectric and combined power variation is the effect of stress and temperature fluctuations on H‐PEH layer. Additionally, five well‐known higher pyroelectric/piezoelectric coefficient materials are studied and found that La‐NBT‐BT‐Ta gives the maximum power of 0.811 and 1.99 mW for combined (pyroelectric + piezoelectric) effect in low (C3) and high (C5) heat consumption model, respectively. The stress generated in both models is analyzed to look at practical feasibility.

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for pyroelectric, piezoelectric, and combined effect is obtained at a total beam thickness of 0.4 mm.…”

Section: Resultsmentioning

confidence: 99%

Exploiting the Potential of Pyroelectric–Piezoelectric Hybrid Devices for Low‐Grade Thermal Energy Harvesting

Gaur,

Saurabh,

Patel

2023

Energy Tech

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“…where N u is the Nusselt number, k a is the thermal conductivity of air, d 0 is the diameter of the disc, P r is the Prandtl number of air, Re is the Reynolds number, r a is the density of air, m a is the kinematic viscosity of the air and v is the velocity of the disc (Tabbai et al, 2020;Hong et al, 2021):…”

Section: Heat Input Boundary Conditionmentioning

confidence: 99%

“…The environment temperature is set to 25°C. The convective heat transfer coefficient h is calculated by the following equations: where N u is the Nusselt number, k a is the thermal conductivity of air, d 0 is the diameter of the disc, P r is the Prandtl number of air, Re is the Reynolds number, ρ a is the density of air, μ a is the kinematic viscosity of the air and v is the velocity of the disc (Tabbai et al , 2020; Hong et al , 2021): Initial conditions …”

Section: Construction Of a Thermo-mechanical Couple Modelmentioning

confidence: 99%

Simulated and experimental study on the relationship between coefficient of friction and temperature of aluminum-based brake disc

Chen,

Fu,

Yang

et al. 2023

ILT

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Purpose This study aims to clarify the relationship between the coefficient of friction (COF) and temperature of aluminum-based brake discs. Design/methodology/approach Three friction blocks with different COFs are examined by a TM-I-type reduced-scale inertial braking dynamometer. On this basis, the thermo-mechanically coupled model of friction pairs is established to study the evolution of brake disc temperature under different COFs using ADINA software. Findings Results indicate that the calculated disc temperature field matches the experimental well. The effect of COF on the peak temperature is magnified by the braking speed. With the COF increasing, the rise rate of instantaneous peak temperature is accelerated, and the dynamic equilibrium period and cooling-down period are observed in advance. The increase in COF promotes the area ratio of the high-temperature zone and the maximum radial temperature difference. When the COF is increased from 0.245 to 0.359 and 0.434 at 140 km/h, the area ratio of high-temperature zone increases from 12% to 44% and 49% and the maximum radial temperature difference increases from 56°C to 75°C and 83°C. The sensitiveness of the axial temperature difference to the COF is related to the braking time. The maximum axial temperature difference increases with COF in the early stages of braking, while it is hardly sensitive to the COF in the later stages of braking. Originality/value The effect of COF on the aluminum-based brake disc temperature is revealed, providing a theoretical reference for the popularization of aluminum-based brake discs and the selection of matching brake pads.

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“…Rotational mechanical energy is one of the significant power sources for piezoelectric energy harvesting. Various types of rotational power sources have been used in the past few years for piezoelectric energy harvesting, such as rotational machines [9][10][11][12][13][14][15][16][17][18], vehicle tire [19][20][21][22][23], human motion [24][25][26][27][28], and even wind [29][30][31][32][33][34][35][36] and fluids [31,32,[37][38][39][40][41]. They have been applied in various applications, such as tire pressure monitoring system TPMS [42][43][44], WSNs in any rotary machine [11,45,46], wearable device and medical implants [47][48][49][50][51], and others.…”

Section: Introductionmentioning

confidence: 99%

Rotational Piezoelectric Energy Harvesting: A Comprehensive Review on Excitation Elements, Designs, and Performances

et al. 2021

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Rotational Piezoelectric Energy Harvesting (RPZTEH) is widely used due to mechanical rotational input power availability in industrial and natural environments. This paper reviews the recent studies and research in RPZTEH based on its excitation elements and design and their influence on performance. It presents different groups for comparison according to their mechanical inputs and applications, such as fluid (air or water) movement, human motion, rotational vehicle tires, and other rotational operational principal including gears. The work emphasises the discussion of different types of excitations elements, such as mass weight, magnetic force, gravity force, centrifugal force, gears teeth, and impact force, to show their effect on enhancing output power. It revealed that a small compact design with the use of magnetic, gravity, and centrifugal forces as excitation elements and a fixed piezoelectric to avoid a slip ring had a good influence on output power optimisation. One of the interesting designs that future works should focus on is using gear for frequency up-conversion to enhance output power density and keep the design simple and compact.

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Friction and wear performance of disc brake pads and pyroelectric energy harvesting

Cited by 25 publications

References 28 publications

Exploiting the Potential of Pyroelectric–Piezoelectric Hybrid Devices for Low‐Grade Thermal Energy Harvesting

Exploiting the Potential of Pyroelectric–Piezoelectric Hybrid Devices for Low‐Grade Thermal Energy Harvesting

Simulated and experimental study on the relationship between coefficient of friction and temperature of aluminum-based brake disc

Rotational Piezoelectric Energy Harvesting: A Comprehensive Review on Excitation Elements, Designs, and Performances

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