- Title
- Characterization of limacon gas expanders with consideration to the dynamics of apex seals and inlet control valve
- Creator
- Phung, Truong; Sultan, Ibrahim
- Date
- 2018
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/166074
- Identifier
- vital:13387
- Identifier
-
https://doi.org/10.1115/1.4040418
- Identifier
- ISBN:0742-4795
- Abstract
- Limacon machine, of which the relative motion between the rotor and housing follows the limacon curve, belongs to a class of rotary positive displacement machines. The profiles of rotors and housings of those machines can be constructed of either limacon or circular curves, hence the names: limacon-to-limacon, circolimacon, and limacon-to-circular machines. This paper presents the investigation into the thermodynamic performance of the limacon-to-circular machines with the presence of apex seals and inlet valve. This paper sets out by briefly introducing the limacon technology and the construction of the limacon-to-circular machine working volume. The mathematical descriptions of ports positions and areas have also been introduced. The paper then discusses the flow and phase composition of working fluid through the working chambers as well as how the fluid velocity is modeled and calculated. Then the seal dynamic model and response of inlet valve are presented followed by the machine thermodynamic model. A case study has also been presented to show the responses of seals and inlet valve during the machine operation.
- Publisher
- American Society of Mechanical Engineers (ASME)
- Relation
- Journal of Engineering for Gas Turbines and Power Vol. 140, no. 12 (2018), p. 1-11
- Rights
- Copyright © 2018 American Society of Mechanical Engineers (ASME). All rights reserved.
- Rights
- Open Access
- Rights
- This metadata is freely available under a CCO license
- Subject
- 0901 Aerospace Engineering; 0913 Mechanical Engineeing; Compressor; Gas expander; Limacon machine; Limacon motion; Limacon-to-circular; Optimization; Positive displacement; Pump; Rotary machine; Thermodynamics
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