scholarly journals Direct heat energy conversion into electrical energy: An experimental study

2015 ◽  
Vol 13 (4) ◽  
pp. 265-270 ◽  
Author(s):  
Vladimir Yezhov ◽  
Sergey Yemelianov ◽  
Natalia Semicheva ◽  
Sergey Berezin ◽  
Alexey Burtsev ◽  
...  
Author(s):  
Priyanka Verma ◽  
A.K. Sharma

Through the photovoltaic effect the energy contained in the sunlight can be converted directly into electrical energy. This method of energy conversion presents some advantages, such as: Its modular characteristic offers large flexibility in the design and application of this kind of energy generator. Short time of installation and operation. High reliability, and low maintenance.


2021 ◽  
Vol 2126 (1) ◽  
pp. 012011
Author(s):  
D K Umam ◽  
S Saehana ◽  
A Kade ◽  
Yunanli

Abstract This research aimed to produce a device for converting heat energy into electrical energy as a teaching aid for physics. This research process is development research, which refers to the Research and Development (R&D) model. The instrument used was a questionnaire with a five Likert scale, which addressed media experts, material experts, physics teachers in SMA Negeri 2 Sigi, and class XII MIA SMA Negeri 2 Sigi students. The product quality data obtained were analyzed using descriptive analysis. Based on the analysis of the media expert’s assessment, the quality of the product obtained a percentage value of 87.69% with the interpretation of “Very Good”. Based on the analysis of the assessment by material experts, the quality of the product obtained a percentage value of 84.44% with the interpretation “Very Good”. For the results of the physics teacher’s response, a percentage value of 86.00% was obtained with the interpretation “Strongly Agree”. For the results of the responses of class XII MIA students in the limited test, a percentage value of 83.56% was obtained with the interpretation “Strongly Agree”. The test results and questionnaire analysis showed that the heat energy conversion device developed into electrical energy was feasible to use.


Processes ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 1141
Author(s):  
Ángel Encalada-Dávila ◽  
Mayken Espinoza-Andaluz ◽  
Julio Barzola-Monteses ◽  
Shian Li ◽  
Martin Andersson

A polymer electrolyte fuel cell (PEFC) is an electrochemical device that converts chemical energy into electrical energy and heat. The energy conversion is simple; however, the multiphysics phenomena involved in the energy conversion process must be analyzed in detail. The gas diffusion layer (GDL) provides a diffusion media for reactant gases and gives mechanical support to the fuel cell. It is a complex medium whose properties impact the fuel cell’s efficiency. Therefore, an in-depth analysis is required to improve its mechanical and physical properties. In the current study, several transport phenomena through three-dimensional digitally created GDLs have been analyzed. Once the porous microstructure is generated and the transport phenomena are mimicked, transport parameters related to the fluid flow and mass diffusion are computed. The GDLs are approximated to the carbon paper represented as a grouped package of carbon fibers. Several correlations, based on the fiber diameter, to predict their transport properties are proposed. The digitally created GDLs and the transport phenomena have been modeled using the open-source library named Open Pore Network Modeling (OpenPNM). The proposed correlations show a good fit with the obtained data with an R-square of approximately 0.98.


2012 ◽  
Vol 16 (suppl. 1) ◽  
pp. 159-171 ◽  
Author(s):  
Zoltan Corba ◽  
Vladimir Katic ◽  
Boris Dumnic ◽  
Dragan Milicevic

In this study, a simulation model of in-grid solar-to-electrical energy conversion system is presented. In this case, the in-grid solar-to-electrical energy conversion system is small photovoltaic power plant, which was constructed by the Center for Renewable Energy and Power Quality from Faculty of Technical Sciences (FTS). Equivalent circuit diagram of photovoltaic cell is described which was used to develop the simulation model of modules. Possible types and topologies of inverters are also described. The photovoltaic power plant is described briefly, because it is necessary to understand the simulation model. The result of simulation is an electricity annual production by the power plant. These results were compared with the real values, while its get a good overlap. The paper also presents the modern modeling methods developed at Faculty of Technical Sciences in the Laboratory for RES systems.


2015 ◽  
Vol 787 ◽  
pp. 782-786 ◽  
Author(s):  
R. Prakash ◽  
D. Christopher ◽  
K. Kumarrathinam

The prime objective of this paper is to present the details of a thermoelectric waste heat energy recovery system for automobiles, more specifically, the surface heat available in the silencer. The key is to directly convert the surface heat energy from automotive waste heat to electrical energy using a thermoelectric generator, which is then regulated by a DC–DC Cuk converter to charge a battery using maximum power point tracking. Hence, the electrical power stored in the battery can be maximized. Also the other face of the TEG will remain cold. Hence the skin burn out accidents can be avoided. The experimental results demonstrate that the proposed system can work well under different working conditions, and is promising for automotive industry.


2021 ◽  
pp. 11-23
Author(s):  
Om Prakash ◽  
Ishan Kashyap ◽  
Ayush Kumar ◽  
Bharath Bhushan ◽  
Anil Kumar ◽  
...  

In today's world, energy-saving and waste energy recovery are an important aspect, and it is more critical in the automotive sector. This is mainly due to vehicles are running on fossil fuel. This paper presents review on state of art waste energy recovery systems for automobiles. With further development, this system has the potential in deployment in many other industries. This technology can also be used to store electrical energy which will further be helpful in both hybrid and electric vehicles.


2021 ◽  
Vol 2021.59 (0) ◽  
pp. 07a5
Author(s):  
Keisuke KITANO ◽  
Yasutaka HAYAMIZU ◽  
Takayuki SUZUKI ◽  
Shigeru OHTSUKA ◽  
Shinichi MORITA ◽  
...  

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