Numerical study of the flow inside a wind trapping system

Georgescu, Matei-Razvan; Vladut, Alexandru Cezar; Cosoiu, Costin Ioan; Georgescu, Andrei-Mugur

doi:10.1109/ciem.2017.8120846

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…Thus, the optimal angle is the one that generates an angle of 45°/315° between the turbine axis (and the exit direction of the flux) and main wind direction in the installation site. Such results are confirmed by Georgescu et al (2017) and Narendrabhai and Desmukh (2018) in their works.…”

Section: Model Validationsupporting

confidence: 70%

Increasing energy production of a ducted wind turbine system

et al. 2019

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This article focuses on evaluating the performance of a relatively new system of a ducted wind turbine with an omnidirectional capture system, the INVELOX system. In the present study, the improvement of such patented system has been developed by performing a detailed numerical analysis varying several geometrical parameters and analysing the effect of changing wind velocity and wind direction. At first, the model validation was performed and the performance of the original system against the wind direction changes was analysed observing that the highest speed ratios are obtained for two specific directions. Based on the previous results, the most critical features of the system have been identified, and then it has been approached a geometric improvement of the system aiming at increasing the system productivity. The results show there is a possibility to largely improve the overall design and extract more energy from the wind respect with the original design.

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Section: Model Validationsupporting

confidence: 70%

Increasing energy production of a ducted wind turbine system

et al. 2019

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“…Reuse of mining spaces for different applicationssuch as: storage various oil and natural gas products, weapons and armaments, products food and agricultural, storage of radioactive or toxic waste, as well as other civilian uses such as: museums, safe depositories for documents, bank vaults, research centers, offices -it can be an opportunity [10].…”

Section: Mining and The Environmentmentioning

confidence: 99%

Romanian Mining - Past, Present and a Possible Future

Fodor,

Georgescu

2023

Mining Revue

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The paper follows the unfolding of the history of Romanian mining in its several major stages: the beginnings until the conquest of Dacia by the Romans, mining in Dacia during the Roman rule, mining activity after the Romans left Dacia until the 10th century, mining activity during the Middle Ages, mining during the capitalist period, Romanian mining during 1948–1990, Romanian mining after 1990, a possible future of Romanian mining and ends with some considerations regarding mining and the environment.

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“…In 2016, Abadi et al [12] investigated a 5 MW turbine that was equipped with Invelox technology and obtained a series of results in which the average annual wind velocity is 4.11 m/s in Chabahar, Sistan and Baluchistan province, and the average annual energy production of 905-gigawatt hours and the cost of energy is 2.3 cents per kilowatt hour. In 2017, Georgescu et al [13] concluded that the free flow velocity is equal to 6.7 m/s with the numerical analysis of the flow in the Invelox turbine throat, which increases the velocity in the throat up to two times. In 2017, Anbarsooz et al [14] defined a series of basic concepts such as the geometry of the Invelox and the dimensions, and while a larger amount of air entering the Invelox exited from the other side and did not enter the venturi.…”

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confidence: 99%

Investigation of Geometric Dimensions and Dust Effects on Invelo Wind Deflectors Performance

Bagheri

2024

IJEE

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The present study simulates Invelox in a three-dimensional and stable way. The flow regime is turbulent flow and an unorganized grid with 350000 cells was utilized. This work has studied the modeling of Invelox with conventional dimensions and four different sizes in the form of four modes for use in a residential building. The numerical data with an error of less than 6% are in good agreement with the available experimental and analytical data. The results show that considering the average velocity of mode 2 with a velocity of 6.54 m/s and a 5% difference from the other two modes, it can be operated in a residential building. It is worth noting that in this investigation, in addition, the effect of dust on the turbine performance was evaluated. The results represent that the oscillation frequency of the blades increases with the increase of the rotational speed. In the case of not considering dust particles on blades, this amount increases by 25%, while considering dust particles with an amount of 0.1%, it increases up to 300%, and this can cause irreparable damage to the turbine as well as the power generation system.

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Numerical study of the flow inside a wind trapping system

Cited by 3 publications

References 6 publications

Increasing energy production of a ducted wind turbine system

Increasing energy production of a ducted wind turbine system

Romanian Mining - Past, Present and a Possible Future

Investigation of Geometric Dimensions and Dust Effects on Invelo Wind Deflectors Performance

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