Performance study of thermo-electric generator

Rohit, G.; Manaswini, D.; Kotebavi, Vinod; Nagaraja, S. R.

doi:10.1063/1.4990247

Cited by 14 publications

(12 citation statements)

References 3 publications

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“…The effectiveness of both the model was compared using the mathematical model (2). The effectiveness values were found as tabulated in the Table 4.…”

Section: Resultsmentioning

confidence: 99%

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Performance investigation of a rotary heat exchanger installed with four ducts using computational fluid dynamics

Nair

Kotebavi

Das³

2018

MATEC Web of Conferences

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The performance characteristics of a commercially available rotary heat exchanger or were determined using CFD. A rotary air pre-heater of a thermal power plant (fuelled by natural gas), situated in Ramin, Iran, was numerically modelled with full scale dimensions using 3D approach. This model was then validated against the experimentally measured values. After a satisfactory validation of the CFD model, a design modification was applied to the model by modelling the heat exchanger with four ducts, with hot and cold fluid ducts arranged alternatively. This was done to improve the heat the heat transfer from hot gases to cold air. The medium of heat exchange (core) is modelled as porous media, since the core in the actual equipment has many number of fine passages arranged in complex manner, which would make the modelling difficult. The model was subjected to same boundary conditions as the validation model. The temperature of the outlets and effectiveness of both the models were compared and was found out that the 4-ducts model is around 12% more effective than the base model.

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“…The effectiveness of both the model was compared using the mathematical model (2). The effectiveness values were found as tabulated in the Table 4.…”

Section: Resultsmentioning

confidence: 99%

“…In industries, there are many heat recovery units such as recuperators, regenerators, rotary heat exchanger [1], economizer, heat pumps, etc. In small scale, systems like thermoelectric generators (TEG) [2], PV cells, piezoelectric devices, etc. are used to harvest energy.…”

Section: Introductionmentioning

confidence: 99%

Performance investigation of a rotary heat exchanger installed with four ducts using computational fluid dynamics

Nair

Kotebavi

Das³

2018

MATEC Web of Conferences

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“…The main objective is to correctly use the right material for the job. When it comes to the materials for Thermoelectric generators, the most effective to gauge the efficiency of the materials is by using the Seebeck coefficientwith three main categories as mentioned belo: (Ds, Mahajan, Anbalagan, & Mallik, 2014) (Rohit, Manaswini, Kotebavi, & S R, 2017) •Semiconductors Semiconductors are most promising when it comes to their use in thermoelectric generators. They are superior to metals when it comes to the construction of thermocouples because they have high Seebeck coefficient values and they range around 100 microvolts per centigrade.…”

Section: Design Of Thermoelectric Generatorsmentioning

confidence: 99%

Thermoelectric generators

Patel

Singh²

2021

OSJ

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As the world is changing and developing with every passing day, the requirements of power are also increasing. There is a shift in utilizing the electrical energy as much as possible and for this reason, many countries have already made policies for completely ruling out the machines which don’t run on electricity. Apart from electricity, there are other forms of energy that can be used to convert that form into a more desirable form. For example, in a plant where the smoke comes out of the chimneys or in a car, the smoke carries a large amount of thermal energy with it. This energy is nothing but a waste and reduction in the efficiency of the systems. If somehow, this energy could be recovered, the efficiency can be increased. Thermoelectric generators serve for this purpose. Thermos electric generators get the heat and using the principle of heat conduction and p and n type materials, the heat can be directly converted into the electricity. There are many materials available in the market for p and n type but in our case, we chose silicon germanium which is also one of the most commonly used. First of all, a single module of thermoelectric generator will be made using p and n type material, as well as using conductive material and some ceramic substance. Then, the entire assembly will be made and this assembly will be exported to Ansys where custom materials will be added and applied on to the geometry. After performing analysis on full model, a comparative study will be presented in which the effect of material of conductive plate on to the voltage difference will be studied

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“…In this situation, the new techniques of wasted thermal energy harvesting and its conversion to the electric energy are very much desired. They may reduce the mentioned inconveniences and can be helpful in many areas, e.g., medicine [1,2], power supply to secluded places [3] or automotive related solutions [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Evolutionary Maximization of Energy Amount Harvested by Means of Panel of Thermoelectric Modules

Golonek

2022

Applied Sciences

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This work proposes the use of a specialized algorithm based on evolutionary computation to the global MPPT regulation of panel of thermoelectric modules connected serially in numerous string sections. Each section of the thermovoltaic panel is equipped with local DC/DC converter controlled by the proposed algorithm and finally this allows the optimization of the total efficiency of conversion. Evolutionary computations adjust PWM signals of switching waveforms of DC/DC sectional simple boost converters, which have outputs configured in parallel. It gives the chance to obtain the highest level of electric energy harvested, i.e., thanks to boost converting operational points precise adaptation to the system temperature profile as well as electric load level. The simulation results of the proposed evolutionary technique confirmed the high speed of the MPPT process that is much better than for perturbation and observation, as well as incremental conductance methods, and it assures concurrent optimization of numerous PWM signals. Next, the work shows practical optimization results achieved by the proposed algorithm implemented to microcontroller module controlling the DC/DC converter during thermal to electric conversion experiment. A laboratory thermovoltaic panel was constructed from a string of Peltier modules and radiator that assured passive cooling. The measurements obtained once more proved the MPPT evolutionary regulation properness and its adaptation effectiveness for different resistive test loads.

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Performance study of thermo-electric generator

Cited by 14 publications

References 3 publications

Performance investigation of a rotary heat exchanger installed with four ducts using computational fluid dynamics

Performance investigation of a rotary heat exchanger installed with four ducts using computational fluid dynamics

Thermoelectric generators

Evolutionary Maximization of Energy Amount Harvested by Means of Panel of Thermoelectric Modules

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