Wind Power

McVeigh, Jane

doi:10.1016/b978-0-08-026147-8.50015-0

Cited by 2 publications

(3 citation statements)

References 4 publications

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“…[ 21 ] Thus, their surface temperatures are stable and ultralow (tens of K), indicating ideal conditions where HTS‐material‐based generators could work to power electronic apparatuses for space exploration under extreme conditions. [ 22 ]…”

Section: Introductionmentioning

confidence: 99%

A Superconducting‐Material‐Based Maglev Generator Used for Outer‐Space

Wang

et al. 2022

Advanced Materials

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Solar cells are conventionally used to harvest energy in outer space, but they are ineffective in dark locations. Here, it is shown that superconducting materials—which work best in cold environments, such as those found in outer space—provide a mechanism to harvest energy that does not require light. A superconducting magnetic levitation (maglev) magnetoelectric generator (SMMG) can convert mechanical impacts to electricity at its working temperature <90 K. The SMMG device consists of a permanent magnet, a conductive coil, and a superconducting layer (SL). Owing to the existence of the SL, the permanent magnet levitates over the SL and rapidly returns to an equilibrium height after being displaced by a mechanical impact. The impact changes the gap between the levitated magnet and the coil, resulting in a variation in magnetic flux that induces electrical current in the coil. Thus, the SMMG converts low‐frequency (<3.7 Hz) mechanical energy to electricity. The output maximum peak voltage, peak power, and peak power density of the SMMG are 4.3 V, 35 mW, and 17.8 W m−2, respectively, with a load resistance of 300 Ω. The SMMG can charge a capacitor of 10 000 µF to 3.8 V with a continuous impact, which is sufficient to power critical wireless communication. The superconductor works best in cold environments and therefore is well‐suited for providing electricity to sensors and communication devices in outer space, particularly in places where the sun may not reach.

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Section: Introductionmentioning

confidence: 99%

A Superconducting‐Material‐Based Maglev Generator Used for Outer‐Space

Wang

et al. 2022

Advanced Materials

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“…McVeigh [4], and laboratory experiments with a flatplate, porous-medium solar collector were conducted by Cheung et al [5]. McVeigh [4] and Lunde [6] compared the efficiencies of a variety of conventional solar collectors and more advanced designs .…”

Section: Introductionmentioning

confidence: 99%

“…McVeigh [4] and Lunde [6] compared the efficiencies of a variety of conventional solar collectors and more advanced designs . Heat transfer between a (moving) fluid and a porous matrix has been recently discussed, for example, by Vafai [7], Vafai et al [8], and Kaviany [9].…”

Section: Introductionmentioning

confidence: 99%

Analysis of a Porous-Medium Solar Collector

Kleinstreuer

Chiang

1990

Heat Transfer Engineering

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The porous-medium flat-plate solar collector is an interesting alternative to conventional fin land-tube designs if higher pumping power requirements do not offset collector efficiency gains. In this paper, complementary to a transient two-phase heat transfer study where Darcy's law had been used, a non-Darcy flow equation and the convection-conduction heat transfer equation are solved numerically. The coupled fluid flow and heat transfer mechanisms are analyzed for a porous-medium solar collector, and its high-performance efficiency is compared with advanced tubular-type collectors.

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Wind Power

Cited by 2 publications

References 4 publications

A Superconducting‐Material‐Based Maglev Generator Used for Outer‐Space

A Superconducting‐Material‐Based Maglev Generator Used for Outer‐Space

Analysis of a Porous-Medium Solar Collector

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