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Energy harvesting for assistive and mobile applications

Vikrant Bhatnagar - Nama Orang; Philip Owende - Nama Orang;

Technology advances have enabled modification of the size and shape of the electronic components to the microscale, with commensurate scaling down of their power requirements to milliwatts and microwatt range. Consequently,
many complex electronic systems and devices such as wearable medical and autonomous devices consume power in the range less than 200 lW, and wireless sensor networks in the range lW to 100 mW are operated on battery
power. Due to the salient limitations of battery power, such as longevity of charge and where applicable, the requirement for periodic recharging, possibilities for utilization of autonomous energy sources is critical for operation of such devices. Ambient energy sources, such as vibrations (1 lW to 20 mW),motion (wide range in power outputs), temperature gradient (0.5–10 mW),radiofrequency waves (>180 lW/cm2), light (100 lW/cm2 to 100 mW/cm2),
acoustics (0.003–0.11 lW/cm2), and many other, have the potential to directly power the electronic device. Ambient energy harvesting, when used separately or in conjunction with batteries, will enhance the longevity of equipment operations requiring portable or autonomous power supply. This paper reviews the state of the art in energy-harvesting techniques, power conversion, and characterization of mini- and microscale self-sustaining power generation systems in the range 600 lW to 5 W, specifically focusing on low-power system applications,for personal assistive and mobile technology devices.

Keywords
Ambient energy, electrets, magnetostrictive materials, methodologies, piezo (piezoelectric), renewable energy,
thermodynamics, thermoelectric, transducers, wireless sensor

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Informasi Detail

Judul Seri: Energy Science and Engineering 2015
No. Panggil: -
Penerbit: : The Authors., 2015
Deskripsi Fisik: Energy Science and Engineering 2015; 3(3): 153–173
Bahasa: English
ISBN/ISSN: -
Klasifikasi: -
Tipe Isi: -
Tipe Media: -
Tipe Pembawa: -
Edisi: -
Subjek: FISIKA
Info Detail Spesifik: -
Pernyataan Tanggungjawab: Wati/Agus

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Energy harvesting for assistive and mobile applications

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