Heat storage thermoelectric generator as an electrical power source for wireless Iot sensing systems

2021 ◽  
Author(s):  
Truong Thi Kim Tuoi ◽  
Nguyen Van Toan ◽  
Takahito Ono
Keyword(s):  
Thermoelectric Generator ◽  
Heat Storage ◽  
Electrical Power ◽  
Power Source ◽  
Sensing Systems

Market Opportunity Analysis in Thailand: Case of Individual Power Sources by Thermoelectric-Generator Technology for Portable Electronics

2019 ◽  
Vol 16 (03) ◽  
pp. 1950027
Author(s):  
Surapree Maolikul ◽  
Thira Chavarnakul ◽  
Somchai Kiatgamolchai
Keyword(s):  
Thermoelectric Generator ◽  
Electrical Power ◽  
Technology Commercialization ◽  
Market Opportunity ◽  
Business Research ◽  
Power Sources ◽  
Practical Applications ◽  
Portable Electronics ◽  
Decision Factors ◽  
Insight Into

Thermoelectrics, an energy-conversion technology, has been developed for its potential to support portable electronics with an innovative power source. Primarily focusing on the metropolitan market in Thailand, the study, thus, aimed at the market insight into portable electronics users’ characteristics and opinions of thermoelectric-generator (TEG) technology commercialization. The business research was conducted to analyze their behaviors for power-supply lacking problems, encountering heat or cold sources, purchasing decision for a TEG-based charger and key decision factors. For practical applications, an innovative TEG-based charger should be more flexible by harnessing various heat or cold sources from ambient situations to generate electrical power.

Parametric Survey for Efficient DeNOx by Direct Decomposition of NO Using an Intermittent DBD Generated by a One-Cycle Sinusoidal Power Source

2007 ◽  
Vol 10 (2) ◽  
Author(s):  
Ken Yukimura ◽  
Hiroshi Murakami ◽  
Masayuki Itoh
Keyword(s):  
Gas Flow ◽  
Room Temperature ◽  
Barrier Discharge ◽  
Electrical Power ◽  
Power Source ◽  
Injection System ◽  
Gas Flows ◽  
Mixing Zone ◽  
Dbd Plasma ◽  
Decomposition Of No

AbstractNO gas is directly decomposed using an intermittent DBD plasma generated by a one cycle sinusoidal power source. Previously, we have developed an ammonia radical injection system, where ammonia radicals were produced by a dielectric barrier discharge (DBD) in a chamber, called a radical injector, which is separate from the chamber in which NO gas flows. The radicals are injected into the mixing zone in the NO gas flow field to decompose NO gas. The power source for generating the DBD is a one-cycle sinusoidal (OCS) waveform so as to easily control the electrical power consumed in the DBD plasma. The fundamental frequency of the OCS power source is 150 kHz. In this paper, we used the same power source, but NO was decomposed directly by the plasma; that is, NO gas is in the DBD plasma. NO gas was varied from room temperature to approximately 400 C, where the effect of DeNOx characteristics were discussed. By optimizing parameters for DeNOx, an energy efficiency of 100 g/kWh was obtained.

scholarly journals Numerical Investigation on the Electrical Performance Optimization of a Tubular Thermoelectric Generator for Waste Heat Recovery

2021 ◽  
Vol 321 ◽  
pp. 02003
Author(s):  
Leisheng Chen ◽  
Zuyi Yu ◽  
Jingwen Zhang ◽  
Jaeyoung Lee
Keyword(s):  
Tilt Angle ◽  
Performance Optimization ◽  
Thermoelectric Generator ◽  
Waste Heat ◽  
Structural Parameters ◽  
Electrical Power ◽  
Open Circuit ◽  
Relative Content ◽  
Electrical Performance ◽  
Tubular Thermoelectric Generator

In the waste heat utilization of automobile exhaust, the tubular thermoelectric generator (TTEG) has structural advantages compared with the flat-plate thermoelectric generator. A kind of TTEG that is composed of Bi0.5Sb1.5Te3 and Ni conical rings alternately attracts researchers' attention, and it generates electrical power based on the transverse thermoelectric effect. However, the electrical performance of such TTEG still needs to be improved for industrial utilization. In this study, the performance of TTEG was optimized through numerical simulation by changing its related structural parameters, including the tilt angle, the thickness of the conical ring, and the relative content of Ni. It is confirmed that the optimal tilt angle with maximum open-circuit voltage (OCV) is 27.3°; on this basis, it is found that a thinner thickness corresponds to a larger OCV; furthermore, when using a conical rings’ thickness of 0.75 mm and increasing the relative content of Ni in the Bi0.5Sb1.5Te3/Ni layered pair from 10% to 90%, the OCV decreases from 198mV to 105mV while the power density increases from 413W/m2 to 1350W/m2. It is believed that these findings can help to develop TTEGs with better electrical performance.

scholarly journals Class D Power Amplifier Used In Programmable Ac Power Source Ideal To Analyse Electronic Equipment Performance In The Electrical Power System Quality

2009 ◽  
Vol 14 (1) ◽  
pp. 9-16
Author(s):  
Fábio Vincenzi Romualdo da Silva ◽  
João Batista Vieira Júnior ◽  
Ernane Antônio Alves Coelho ◽  
Valdeir José Farias ◽  
Luiz Carlos de Freitas
Keyword(s):  
Power System ◽  
Power Amplifier ◽  
Electrical Power ◽  
Power Source ◽  
Electronic Equipment ◽  
System Quality ◽  
Electrical Power System ◽  
Class D ◽  
Ac Power ◽  
Equipment Performance

scholarly journals All-Day Energy Harvesting Power System Utilizing a Thermoelectric Generator with Water-Based Heat Storage

2020 ◽  
Vol 12 (9) ◽  
pp. 3659 ◽  
Author(s):  
Yasuki Kadohiro ◽  
Shuo Cheng ◽  
Jeffrey S. Cross
Keyword(s):  
Energy Harvesting ◽  
Power System ◽  
Hybrid Systems ◽  
Thermoelectric Generator ◽  
Heat Storage ◽  
Cost Effective ◽  
Hot Water ◽  
Warm Water ◽  
Thermal Systems ◽  
Water Based

Solar thermal systems, especially solar hot water household heating/storage systems, are considered the most cost-effective alternatives to fossil fuel hot water heating energy systems. Recently, solar hot water systems are combined with a thermoelectric generator, forming hybrid systems. However, these hybrid systems described in the literature cannot generate electricity from sunset to sunrise, or at night, when residential consumers use the most electricity. In this paper, an all-day energy harvesting power system utilizing a thermoelectric generator with water-based heat storage is presented to generate electricity all-day and also produce warm water. The experimental and theoretical analyses were conducted to evaluate and verify the performance of the systems. In the case study, the scaled-up system shows potential to provide 198.9 L of warm water per day, 0.912 kWh of electricity in the daytime, and 0.0332 kWh of electricity at nighttime for a typical house with 6.34 m2 of available surface area in Tokyo, Japan. Although the electric power at night is low, this novel lab-scale system shows the potential to be a viable source of electricity and warm water throughout the day, without emitting any greenhouse gas.

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