Modeling of Top Scroll Profile Using Equidistant-Curve Approach for a Scroll Compressor

Liu, Tao; Wu, Zaixin

doi:10.1155/2015/403249

Cited by 7 publications

(6 citation statements)

References 11 publications

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“…Another example of an unconventional engine is a design based on the design of a scroll compressor (Ivlev and Misyurin, 2017;Liu and Wu, 2015). The concept of the scroll compressor was developed at the beginning of the 20th century, however the technological possibilities needed for serial production were developed only in the 1970s.…”

Section: Scroll Enginementioning

confidence: 99%

A Review of Compressed Air Engine in the Vehicle Propulsion System

Korbut

Szpica

2021

Acta Mechanica Et Automatica

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Engines powered by compressed air as a source of propulsion are known for many years. Nevertheless, this type of drive is not commonly used. The main reason for not using commonly is the problem with the low energy density of the compressed air. They offer a number of advantages, primarily focusing on the possibility of significantly lowering the emissions of the engine. Their emissivity mainly depends on the method of obtaining compressed air. This also has an impact on the economic aspects of the drive. Currently there are only a few, ready to implement, compressed air powered engine solutions available on the market. A major advantage is the ability to convert internal combustion engines to run with compressed air. The study provides a literature review of solutions, focusing on a multifaceted analysis of pneumatic drives. Increasing vehicle approval requirements relating to their emissions performance are encouraging for the search of alternative power sources. This creates an opportunity for the development of unpopular propulsion systems, including pneumatic engines. Analysing the works of some researchers, it is possible to notice a significant increase in the efficiency of the drive, which may contribute to its popularisation.

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Section: Scroll Enginementioning

confidence: 99%

A Review of Compressed Air Engine in the Vehicle Propulsion System

Korbut

Szpica

2021

Acta Mechanica Et Automatica

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“…Many studies on scroll geometric modeling have been carried out in the past. The literature review shows that the mathematical methods of scroll geometry mainly include sector integration method [3], graphic method [4], midline method [5], and analytical method [6].…”

Section: Introductionmentioning

confidence: 99%

An Improved Geometric Theoretical Model and Throughflow Prediction Method for a CO2 Scroll Compressor of Automotive Air Conditioning System

Song

et al. 2023

International Journal of Energy Research

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The scroll-type compressor is the core component of the refrigeration system using the natural refrigerant carbon dioxide. An accurate scroll geometric theoretical model is essential for evaluating and enhancing compressor performance. The present paper proposed and validated an improved geometric theoretical model of a scroll compressor. A vector triangle method-based general piecewise function describes precisely the volume variation of the working chambers, based on which the transient throughflow modeling and performance evaluation of a carbon dioxide scroll compressor were conducted. The mechanisms and influencing factors of the suction precompression and the asymmetry discharging were analyzed. The results indicate that the strength of the suction precompression is mainly influenced by the suction vacuum under different rotating speeds, partly associated with the tangential leakage under low rotating speeds. The increasing initial suction pressure contributes to the linear raising of the pressure difference between suction initial and ending pressures, decreasing the precompression extension slightly. The variation of the discharge throughflow areas of two symmetric discharge chambers dominates the pressure asymmetry, which is gradually eliminated by the overlapping throughflow area. Compared with the circular discharge structure, the waist-shape port reduces the pressure asymmetry degree and shortens its duration.

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“…gave the analytical solutions of arc-line-arc, perfectmeshing profile, one-arc and two-arc discharge geometry. In recent years, (Liu and Wu, 2015) redesigned the geometric shape of the scroll profile based on the involute generating line composed of involute and arc. Subsequently, the geometric and dynamic models of the scroll compressor are established.…”

Section: Introductionmentioning

confidence: 99%

Effect of tooth head modification on the performance of a scroll expander for ORC waste heat recovery system

Liu

Xie²,

Li³

et al. 2023

Front. Energy Res.

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In order to cope with the energy crisis and improve energy efficiency, the use of organic Rankine cycle (ORC) to convert low-quality heat energy into electricity and use it is an effective method. Based on the ORC waste heat recovery system of vehicle engine, this paper explores the flow heat transfer and deformation law of the core component scroll expander under different tooth head corrections. Deformation has a significant impact on the performance of the expander. In this study, several flow-thermal-solid coupling models based on double circular arc correction and double circular arc plus straight-line correction are established. The effects of tooth head correction on the strength and stiffness of tooth head, flow field distribution of suction chamber and deformation characteristics of tooth head are studied. Finally, the deformation law of scroll tooth head with different correction angles was discussed. The results show that the EA-SAL correction makes the wall curvature of the tooth head change greatly, and the flow field in the center of the tooth head becomes more uneven and complicated. The tooth head area under EA-SAL modification is larger, and the tooth head strength and stiffness are improved by about 6%. Within a certain angle range, the tooth head deformation after EA-SAL correction is slightly larger than that after PMP correction, but the difference between them decreases and even reverses with the increase of angle. The maximum deformation of the EA-SAL modified tooth head under internal pressure is about 20% smaller than that of PMP. With a given initial correction angle ∅, the deformation of the corrected tooth head caused by a pressure or temperature load reduces when the correction angle γ is reduced, Therefore, reducing the correction angle properly is helpful to reduce the deformation of the tooth head.

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Modeling of Top Scroll Profile Using Equidistant-Curve Approach for a Scroll Compressor

Cited by 7 publications

References 11 publications

A Review of Compressed Air Engine in the Vehicle Propulsion System

A Review of Compressed Air Engine in the Vehicle Propulsion System

An Improved Geometric Theoretical Model and Throughflow Prediction Method for a CO2 Scroll Compressor of Automotive Air Conditioning System

Effect of tooth head modification on the performance of a scroll expander for ORC waste heat recovery system

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