Review on Waste Heat Energy Harvesting using TEG: Applications and Enhancements

Nadaf, Nazir; Preethi, A

doi:10.1109/icscc51209.2021.9528196

Cited by 6 publications

(4 citation statements)

References 23 publications

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“…Figure 14a shows the start-up process of this boost converter at an input voltage of 0.7 V and a load current of 1 mA, and the results are consistent with the theoretical analysis. At an input voltage of 0.7 V, a load current of 1 mA is a heavy load for the boost converter, which operates in PWM mode at phase (5). Figures 14b,c show the start-up process of the boost converter at the input voltage V I N = 3.6 V, which differs slightly from the theoretical analysis.…”

Section: Resultsmentioning

confidence: 87%

“…Monolithic battery power supply is an effective measure to achieve miniaturization and low power consumption of portable devices [1,2]. A typical single-cell NiMH battery has an open-circuit voltage of 1.2 V and a discharge voltage of about 0.8 V. Fuel cells have an open-circuit voltage of 0.8-0.9 V and a rated operating voltage of 0.6-0.8 V. Energy harvesting (EH) technologies collect energy from the surrounding environment, such as vibrational energy [3,4], thermal energy [5,6], solar energy [7,8], RF energy [9,10], and so on. These energies are then stored and boosted using interface circuits, so that they can be converted into a supply voltage for IoT-distributed devices, portable devices, and some other equipment.…”

Section: Introductionmentioning

confidence: 99%

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A High-Efficiency Synchronous Boost Converter with Near-Threshold Self-Start

Gan

2023

Electronics

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A high-efficiency synchronous boost converter with near-threshold self-starting is proposed. It adopts a novel phased start-up method to achieve self-start when the input voltage is below the threshold voltage of the MOS device and without external auxiliary measures. This boost converter is fabricated in a 0.18 um COMS process with a 1.24 × 0.78 um 2 chip area, and can achieve a reliable self-start when the input voltage is below the threshold voltage of 40 mV. It has an input voltage range of 0.7–5 V, a load current range of 0–300 mA, a stable output voltage of 5 V, and a maximum peak efficiency of 95.01%.

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Section: Resultsmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

A High-Efficiency Synchronous Boost Converter with Near-Threshold Self-Start

Gan

2023

Electronics

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“…Yang and Kumar provide a vehicle-level analysis and a numerical model to support the feasibility of TEGs in the automotive industry [53,54]. Espinosa and Lan both focus on the modeling and dynamic operation of TEGs for automotive waste heat recovery, with the latter emphasizing the importance of integrating TEGs with heat exchangers [55,56], and Nadaf reviews the various application areas for TEGs in thermal energy harvesting, underscoring their potential in low-and high-power scenarios [57].…”

Section: Introductionmentioning

confidence: 99%

“…However, their conversion efficiency is relatively low [91]. Despite these limitations, TEGs remain a promising energy harvesting technology, particularly in the context of waste heat energy harvesting [57].…”

Section: Introductionmentioning

confidence: 99%

Advancements in Thermoelectric Generator Design: Exploring Heat Exchanger Efficiency and Material Properties

Chen,

Du,

Chung

et al. 2024

Energies

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This paper presents a comprehensive study on the application and optimization of automotive thermoelectric generators (ATEGs), focusing on the crucial role of heat exchangers in enhancing energy conversion efficiency. Recognizing the substantial waste of thermal energy in internal combustion engines, our research delves into the potential of TEGs to convert engine waste heat into electrical energy, thereby improving fuel efficiency and reducing environmental impact. We meticulously analyze various heat exchanger designs, assessing their influence on the TEG’s output power under different exhaust gas flow rates and temperatures. Furthermore, we explore the impact of TEG material properties on the overall energy conversion effectiveness. Our findings reveal that specific heat exchanger designs significantly enhance the efficiency of waste gas heat exchange, leading to an improved performance of the TEG system. We also highlight the importance of thermal insulation in maximizing TEG output. This study not only contributes to the ongoing efforts to develop more sustainable and efficient vehicles but also provides valuable insights into the practical application of thermoelectric technology in automotive engineering. Through this research, we aim to pave the way for more environmentally friendly transportation solutions, aligning with global efforts to reduce fossil fuel dependence and mitigate environmental pollution.

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