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Theoretical and experimental study on conveying behavior of a twin-screw multiphase pump
Citation
Hu, B and Cao, F and Yang, X and Wang, X and Xing, Z, Theoretical and experimental study on conveying behavior of a twin-screw multiphase pump, Proceedings of the Institution of Mechanical Engineers Part E: Journal of Process Mechanical Engineering, 230, (4) pp. 304-315. ISSN 0954-4089 (2016) [Refereed Article]
Copyright Statement
Copyright IMechE 2014
DOI: doi:10.1177/0954408914549789
Abstract
In this paper, the conveying behavior of a twin-screw multiphase pump is investigated when it pumps either pure water or
gas–liquid mixtures with gas void fractions varying from 20% to 90%. A prototype of the twin-screw multiphase pump is
developed and set up in a laboratory for this purpose. A theoretical model is established to evaluate backflow rates in the
twin-screw pump clearances, total pump volume flow rates, and power consumptions at various pressure differences and
gas void fractions. Results show that the predictions from the model agree well with experimental data. For pumping
pure water, the power consumption increases by 45.3% when the pressure difference between inlet and outlet of the
twin-screw multiphase pump increases from 0.6 to 1.0 MPa. However, the effect of the pressure difference on the total
pump flow rate is negligible. For pumping air–water mixtures, the pressure difference has a significant effect on both
power consumption and total volume flow rate of the multiphase pump. The pump power consumption increases by
more than 40% when the pressure difference increases from 0.4 to 1.0 MPa. On the contrary, the pump volume flow rate
decreases between 10% and 30% varying with the gas void fraction value. However, at the fixed pressure differences of
0.4 MPa and 1.0 MPa, the pump power consumption does not show much difference with the change of gas void fractions
from 20% to 90% although the total pump volume flow rate reduces by 18.7% and 25.7%, respectively.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | twin-screw pump, backflow, volume flow rate, power consumption, gas void fraction |
| 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 transmission and distribution (excl. hydrogen) |
| UTAS Author: | Wang, X (Professor Xiaolin Wang) |
| ID Code: | 94199 |
| Year Published: | 2016 |
| Web of Science® Times Cited: | 3 |
| Deposited By: | Engineering |
| Deposited On: | 2014-09-03 |
| Last Modified: | 2019-06-11 |
| Downloads: | 0 |
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