energy applications
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2022 ◽  
Vol 169 ◽  
pp. 108924
Author(s):  
Robin Roper ◽  
Megan Harkema ◽  
Piyush Sabharwall ◽  
Catherine Riddle ◽  
Brandon Chisholm ◽  
...  

2022 ◽  
Vol 306 ◽  
pp. 122781
Author(s):  
Muhammad Waqas Mukhtar ◽  
M. Ramzan ◽  
Muhammad Rashid ◽  
Altaf Hussain ◽  
Muhammad Imran ◽  
...  

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 610
Author(s):  
Girish Ganesan Ramanathan ◽  
Naomitsu Urasaki

DC-DC boost converters are necessary to extract power from solar panels. The output voltage from these panels is far lower than the utility voltage levels. One of the main functions of the boost converter is to provide a considerable step-up gain to interface the panel to the utility lines. There are several techniques used to boost the low panel voltage. Some of the issues faced by these topologies are a high duty ratio operation, complex design with multiple active switches and discontinuous input current that affects the power drawn from the panel. This paper presents a boost converter topology that combines the advantages of an interleaved structure, a voltage lift capacitor and a passive voltage multiplier network. A mathematical analysis of the proposed converter during its various modes of operation is presented. A 100 W prototype of the proposed converter is designed and tested. The prototype is controlled by a PIC16F18455 microcontroller. The converter is capable of achieving a gain of 10 without operating at extremely high duty ratios. The voltage stress of the switch is far lower than the maximum output voltage.


JOM ◽  
2022 ◽  
Author(s):  
Andrew B. Kustas ◽  
Donald F. Susan ◽  
Todd Monson

AbstractSoft-magnetic alloys exhibit exceptional functional properties that are beneficial for a variety of electromagnetic applications. These alloys are conventionally manufactured into sheet or bar forms using well-established insgot metallurgy practices that involve hot- and cold-working steps. However, recent developments in process metallurgy have unlocked opportunities to directly produce bulk soft-magnetic alloys with improved, and often tailorable, structure–property relationships that are unachievable conventionally. The emergence of unconventional manufacturing routes for soft-magnetic alloys is largely motivated by the need to improve the energy efficiency of electromagnetic devices. In this review, literature that details emerging manufacturing approaches for soft-magnetic alloys is overviewed. This review covers (1) severe plastic deformation, (2) recent advances in melt spinning, (3) powder-based methods, and (4) additive manufacturing. These methods are discussed in comparison with conventional rolling and bar processing. Perspectives and recommended future research directions are also discussed.


Author(s):  
Surbhi Sharma ◽  
Soumen Basu ◽  
Nagaraj P. Shetti ◽  
Kunal Mondal ◽  
Ashutosh Sharma ◽  
...  

Nano Research ◽  
2022 ◽  
Author(s):  
Shu Zhang ◽  
Jinbo Pang ◽  
Yufen Li ◽  
Feng Yang ◽  
Thomas Gemming ◽  
...  

AbstractCarbon nanotubes (CNTs) have attracted great attentions in the field of electronics, sensors, healthcare, and energy conversion. Such emerging applications have driven the carbon nanotube research in a rapid fashion. Indeed, the structure control over CNTs has inspired an intensive research vortex due to the high promises in electronic and optical device applications. Here, this in-depth review is anticipated to provide insights into the controllable synthesis and applications of high-quality CNTs. First, the general synthesis and post-purification of CNTs are briefly discussed. Then, the state-of-the-art electronic device applications are discussed, including field-effect transistors, gas sensors, DNA biosensors, and pressure gauges. Besides, the optical sensors are delivered based on the photoluminescence. In addition, energy applications of CNTs are discussed such as thermoelectric energy generators. Eventually, future opportunities are proposed for the Internet of Things (IoT) oriented sensors, data processing, and artificial intelligence.


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