The Design of a Twin-screw Compressor Based on a New Rotor Profile

Stošić, Nikola; Smith, Ian K.; Kovačević, Ahmed; Aldis, C. A.

doi:10.1080/09544829708907973

Cited by 27 publications

(3 citation statements)

References 3 publications

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“…They have excellent performance but are complex to manufacture and costly to maintain. The profile of the rotor plays an important role in the reduction of frictional losses and leakage and overall cycle performance of the expander (Stosic et al, 1997). In one of the designs, a pair of male and female rotors are used.…”

Section: Screw Expandersmentioning

confidence: 99%

A review on expanders and their performance in vapour compression refrigeration systems

Murthy

Subiantoro

Norris

et al. 2019

International Journal of Refrigeration

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Section: Screw Expandersmentioning

confidence: 99%

A review on expanders and their performance in vapour compression refrigeration systems

Murthy

Subiantoro

Norris

et al. 2019

International Journal of Refrigeration

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“…In view of the fact that the rotor profile has great influence on the efficiency of the screw compressor, researchers have attempted to develop a new method to generate the profiles that give the rotors of the compressor the optimum working efficiency. Stosic et al [5] developed a comprehensive software package that included almost every aspect of thermodynamic and geometric modeling, and the capacity to transmit derived output directly into the CAD drawing system.…”

Section: Introductionmentioning

confidence: 99%

Performance Characteristics of a 4 × 6 Oil-Free Twin-Screw Compressor

Byeon

Lee²,

Kim

2017

Energies

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The screw compressor in the early stage of development is generally known as the oil-injection type. However, escalating environmental problems and advances in electronic components have spurred continuous R & D to minimize the oil content in compressed air. The oil-free twin-screw compressor is continuously compressed by inner volumetric change between rotors and casing. Fo this reason, in order to predict the overall performance of the screw compressor at the early stage of the design process, industry still relies on the empirical method. However, it is difficult using the existing empirical method to gain more information of the inner fluid flow of the twin-screw compressor. Flow simulation techniques using CFD are required. This study presents applications of a recently proposed overset grid method to the solution of the flow around a moving boundary. In order to analyze the performance of a 4 × 6 oil-free screw compressor, the 3-D, unsteady and compressible flow fields were numerically calculated with a shear stress transport (SST) turbulence model, and implemented by the commercial software, Star-CCM+. The pressure distributions were calculated and graphically depicted. Results also showed that the volumetric and adiabatic efficiencies of the screw compressor measured by the experiments were 78% and 71%, respectively.

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“…However, by improving the profile, the volumetric efficiency has no significant increment either. Stosic et al [6,89,93] deliberated on the optimization issues of the screw rotor profile. They proposed a rotor profile that is able to achieve a higher mechanical efficiency.…”

Section: Figure 25 Schematic View Of a Screw Compressor [85]mentioning

confidence: 99%

Design and development of the u-vane compressor

Lim¹

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The Design of a Twin-screw Compressor Based on a New Rotor Profile

Cited by 27 publications

References 3 publications

A review on expanders and their performance in vapour compression refrigeration systems

A review on expanders and their performance in vapour compression refrigeration systems

Performance Characteristics of a 4 × 6 Oil-Free Twin-Screw Compressor

Design and development of the u-vane compressor

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