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Numerical study of intake flow field inside the high-speed refrigeration scroll compressor with spiral suction channels in the motor rotor
Citation
Bu, GX and Li, XR and Li, XW and Zhang, Y and Wu, WF and Wang, XL and Zhang, XP, Numerical study of intake flow field inside the high-speed refrigeration scroll compressor with spiral suction channels in the motor rotor, IOP Conference Series: Materials Science and Engineering, 06-08 September, London, United Kingdom, pp. 1-10. ISSN 1757-8981 (2021) [Refereed Conference Paper]
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Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd
DOI: doi:10.1088/1757-899X/1180/1/012012
Abstract
To control the temperature of the electric motor, the suction gas is introduced flowing
through the motor in hermetic scroll compressors. For high-speed compressors, this flow
resistance is high, which results in decreasing of the efficiency. In this paper, spiral flow channels
were designed inside the motor rotor to decrease the suction flow resistance and increase the
refrigerant flow rate inside the scroll compressor. Simulation of the suction flow through the
motor was carried out. Two structure of straight and spiral intake channels were brought into the
simulation model, under 3000 rpm, 5000 rpm, 7000 rpm and 9000 rpm. The results showed that
the spiral channels could increase the refrigerant flow rate inside the motor rotor and the suction
pressure of the compressor, and with the increase of the motor speed, the effect of the intake
supercharging improved. At 9000 rpm, the suction pressure at the suction port of the compressor
increased by about 4% by using spiral channels, while the mass flow rate increased by about 6%.
The increases of total refrigerant flow rate in spiral channels are mainly due to the increase in
unblocked channels. The size and the layout of the balance weight have a great effect on intake
flow.
Item Details
| Item Type: | Refereed Conference Paper |
|---|---|
| Keywords: | scroll compressor, spiral suction channel, refrigeration |
| Research Division: | Engineering |
| Research Group: | Mechanical engineering |
| Research Field: | Energy generation, conversion and storage (excl. chemical and electrical) |
| Objective Division: | Energy |
| Objective Group: | Energy storage, distribution and supply |
| Objective Field: | Energy systems and analysis |
| UTAS Author: | Wang, XL (Professor Xiaolin Wang) |
| ID Code: | 146947 |
| Year Published: | 2021 |
| Deposited By: | Engineering |
| Deposited On: | 2021-10-04 |
| Last Modified: | 2021-11-05 |
| Downloads: | 1 View Download Statistics |
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