Thermoelectric Generators In article number 2204171, Jeonghun Kwak, Heesuk Kim, Seungjun Chung, and co-workers demonstrate all-printed 3D compliant thermoelectric generators (TEGs) through out-of-plane printing of viscoelastic carbon nanotubes-based inks. It paves a promising pathway to realize highly efficient TEGs with high degree design freedom for self-powered flexible and/or wearable appli...

Sensor nodes and other ultra-low power devices can be powered with micro energy harvesting. In case of low environmental power thermo generators, solar cells, inductive generators or radio frequency (RF) energy harvesting circuits provide an extremely low output voltage that needs to be increased to generate a suitable power supply. This paper presents a DC-DC converter that starts operation at...

The economic dispatch of wind power units is quite different from that in conventional thermal units; since the adopted model should take into consideration the intermittency nature of wind speed as well. Therefore, this paper uses a model that takes into account the aforementioned consideration in addition to whether the utility owns wind turbines or not. The economic dispatch is solved by usi...

Hydrogen is a colorless compound to which symbolic colors are attributed classify it according the resources used in production, production processes, such as electrolysis, and energy vectors, solar radiation. Green hydrogen produced mainly by electrolysis of water using renewable electricity from an grid powered wind, geothermal, or hydroelectric power plants. For grid-powered electrolyzers te...

Abstract The purpose of this paper is to study how to apply distributed storage into a photovoltaic microgrid for rural villages with electrical network powered by renewable sources and small thermal generators. Using distributed storage helps to reduce Joule losses and voltage drops. This allows reducing the cable’s section or the power source’s size. The main work will focus on optimizing the...

Transition metal dichalcogenides (TMDCs), such as MoS2 and WSe2, provide two-dimensional atomic crystals with semiconductor band gap. In this work, we present a design of new mechano-electric generators and sensors based on transition metal dichalcogenide nanoribbon PN junctions and heterojunctions. The mechano-electric conversion was simulated by using a first-principle calculation. The output...

The four major hurricanes that struck Florida during August 13-September 25, 2004, produced electric power outages in several million homes. After the hurricanes, the Consumer Product Safety Commission (CPSC) investigated six deaths in Florida attributed to carbon monoxide (CO) poisoning (CPSC, unpublished data, 2004). The Florida Department of Health and CDC analyzed demographic and CO exposur...

Utilizing the gathered failure data and failure interval data from Tabas coal mine in two years, this paper discusses the reliability of powered supports. The data sets were investigated using statistical procedures and in two levels: the existence of trend and serial correlation. The results show that the powered supports follow the Gamma reliability function. The reliability of the machine de...