Publication detail

Modelling fluid flow in a reciprocating compressor

TUHOVČÁK, J. HEJČÍK, J. JÍCHA, M.

Original Title

Modelling fluid flow in a reciprocating compressor

English Title

Modelling fluid flow in a reciprocating compressor

Type

conference paper

Language

en

Original Abstract

Efficiency of reciprocating compressor is strongly dependent on the valves characteristics, which affects the flow through the suction and discharge line. Understanding the phenomenon inside the compressor is necessary step in development process. Commercial CFD tools offer wide capabilities to simulate the flow inside the reciprocating compressor, however they are too complicated in terms of computational time and mesh creation. Several parameters describing compressor could be therefore examined without the CFD analysis, such is valve characteristic, flow through the cycle and heat transfer. The aim of this paper is to show a numerical tool for reciprocating compressor based on the energy balance through the cycle, which provides valve characteristics, flow through the cycle and heat losses from the cylinder. Spring-damping-mass model was used for the valve description. Boundary conditions were extracted from the performance test of 4-cylinder semihermetic compressor and numerical tool validation was performed with indicated p-V diagram comparison.

English abstract

Efficiency of reciprocating compressor is strongly dependent on the valves characteristics, which affects the flow through the suction and discharge line. Understanding the phenomenon inside the compressor is necessary step in development process. Commercial CFD tools offer wide capabilities to simulate the flow inside the reciprocating compressor, however they are too complicated in terms of computational time and mesh creation. Several parameters describing compressor could be therefore examined without the CFD analysis, such is valve characteristic, flow through the cycle and heat transfer. The aim of this paper is to show a numerical tool for reciprocating compressor based on the energy balance through the cycle, which provides valve characteristics, flow through the cycle and heat losses from the cylinder. Spring-damping-mass model was used for the valve description. Boundary conditions were extracted from the performance test of 4-cylinder semihermetic compressor and numerical tool validation was performed with indicated p-V diagram comparison.

Keywords

compressor, simulation, CFD, valve, heat transfer

RIV year

2015

Released

06.05.2015

Publisher

EDP Sciences

Location

France

Pages from

1

Pages to

5

Pages count

5

URL

Full text in the Digital Library

BibTex


@inproceedings{BUT111219,
  author="Ján {Tuhovčák} and Jiří {Hejčík} and Miroslav {Jícha}",
  title="Modelling fluid flow in a reciprocating compressor",
  annote="Efficiency of reciprocating compressor is strongly dependent on the valves characteristics, which affects the flow through the suction and discharge line. Understanding the phenomenon inside the compressor is necessary step in development process. Commercial CFD tools offer wide capabilities to simulate the flow inside the reciprocating compressor, however they are too complicated in terms of computational time and mesh creation. Several parameters describing compressor could be therefore examined without the CFD analysis, such is valve characteristic, flow through the cycle and heat transfer. The aim of this paper is to show a numerical tool for reciprocating compressor based on the energy balance through the cycle, which provides valve characteristics, flow through the cycle and heat losses from the cylinder. Spring-damping-mass model was used for the valve description.  Boundary conditions were extracted from the performance test of 4-cylinder semihermetic compressor and numerical tool validation was performed with indicated p-V diagram comparison.",
  address="EDP Sciences",
  booktitle="EPJ Web of Conferences",
  chapter="111219",
  doi="10.1051/epjconf/20159202100",
  howpublished="online",
  institution="EDP Sciences",
  number="2015",
  year="2015",
  month="may",
  pages="1--5",
  publisher="EDP Sciences",
  type="conference paper"
}