Computational investigation of partial admission effects on the flow field of a tesla turbine for ORC applications

Pacini, Leonardo; Ciappi, Lorenzo; Talluri, Lorenzo; Fiaschi, Daniele; Manfrida, Giampaolo; Smołka, Jacek

doi:10.1016/j.energy.2020.118687

Cited by 14 publications

(4 citation statements)

References 30 publications

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“…The technology was not commercially successful and was not evaluated until 1950. This paper focuses on the application and development of the design as a pump [19][20][21][22][23].…”

Section: First-generation Disc Pumpmentioning

confidence: 99%

Research on Energy-Efficient Disc Pumps: A Review on Physical Models and Energy Efficiency

Pei,

Liu,

Ooi

2023

Machines

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Disc pumps have obvious advantages in dealing with difficult-to-pump media. Energy efficiency and sustainable energy management are important topics with regard to reducing costs and promoting carbon neutrality. Though the concept of the disc pump was proposed in the 1850s, development was slow and limited by its initial model. However, with the development of industries such as petrochemicals and food, the efficient pumping of difficult-to-pump media is much needed, but facing challenges. Therefore, research on energy-efficient disc pumps is particularly important moving forward. In this paper, the available information from the open literature about the research and development of the disc pump will be thoroughly reviewed. It focuses on the historical development, energy efficiency and physical model application of the disc pump. The review ends with a proposal for the direction of future development, and in this aspect, it is proposed that the energy efficiency prediction model based on velocity slip theory, the energy management system based on multi-scenarios and the design method based on energy conversion theory are important. The latest achievements in energy conversion are given. This review also provides a new perspective for the development of energy-efficient disc pumps.

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“…The technology was not commercially successful and was not evaluated until 1950. This paper focuses on the application and development of the design as a pump [19][20][21][22][23].…”

Section: First-generation Disc Pumpmentioning

confidence: 99%

Research on Energy-Efficient Disc Pumps: A Review on Physical Models and Energy Efficiency

Pei,

Liu,

Ooi

2023

Machines

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“…The straightforward design has always ensured affordability and dependability. The paper [6] evaluated the fluid dynamics of the rotor, stator-rotor gap, and stator using a 3-D computer model. The findings were consistent with the findings of the analytical 2-D code, which presupposes uniform entrance to the rotor.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…A comparison was made with the simulation program from previous research [6] to ensure the validity of the results that were worked on.…”

Section: Effect Of the Number Of Pump Blades On The Shear Stressmentioning

confidence: 99%

Identifying the influence of number of blades and distance between blades on tesla pump characteristics

Kadhim¹,

Rahman²

2022

EEJET

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The main principle of the Tesla pump is to increase the shear stresses as a result of the rotation of the pump blades, and thus increase the kinetic energy of the fluid to form a mass flow. The types of mechanical pumps are many and the ways of their use are wide. Over the years, scientists have contributed to developing types of pumps to get the best pump efficiency. The rotational energy can be converted into a mass flow of the fluid that can be pumped. As the Tesla pump is one of the types that gives a wide impression of fluid mechanics, where the viscosity and shear stress of the fluid will be in the movement of the fluid particles and the formation of a centrifugal force that gives an active flow of the fluid. Tesla pump is one of the primitive pumps that can be modified to study this research paper and know the number of fins used and the optimal distance between them to obtain the best mechanical efficiency of the pump. Where the Tesla pump was designed with variable fins, 3, 6 and 11 fins were taken to compare them, and the distance between the fins was reduced from 10 mm to 5 mm with a change of 2.5 mm, where the changes that occur on the pump can be observed. Where the results proved that the value of the fins increases the flow velocity of the fluid, as the best case was at the fins number 11, where the flow velocity reached 13 m/s. As for the change of distance, it is an inverse relationship as the small distance between the fins impedes the movement of the fluid flow and thus reduces the value of the flow. In the case where the number of turbine blades is 11, shear stresses reached 401 Pa. Which is the best case compared to the rest of the cases. The mechanical movement of the water was significantly increased

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“…Afterwards, the partial admission effects on the tesla turbine flow field were investigated [21,22]. Another investigation was performed by Qi et al, who studied the disc thickness and disc spacing effect by CFD models [23] and trying to assess the optimal value for the turbine performance [24].…”

Section: Introductionmentioning

confidence: 99%

Numerical assessment of a two-phase Tesla turbine: Parametric analysis

Niknam

Talluri

Ciappi

et al. 2021

Applied Thermal Engineering

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Computational investigation of partial admission effects on the flow field of a tesla turbine for ORC applications

Cited by 14 publications

References 30 publications

Research on Energy-Efficient Disc Pumps: A Review on Physical Models and Energy Efficiency

Research on Energy-Efficient Disc Pumps: A Review on Physical Models and Energy Efficiency

Identifying the influence of number of blades and distance between blades on tesla pump characteristics

Numerical assessment of a two-phase Tesla turbine: Parametric analysis

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