Numerical analysis of a hermetic reciprocating compressor oil pump system

Stefan Posch; Johann Wilfried Hopfgartner; Erwin Berger; Bernhard Zuber; Peter Schöllauf; Raimund Almbauer

doi:10.1016/j.ijrefrig.2017.09.017

Numerical analysis of a hermetic reciprocating compressor oil pump system

Stefan Posch^*, Johann Wilfried Hopfgartner, Erwin Berger, Bernhard Zuber, Peter Schöllauf, Raimund Almbauer

^*Corresponding author for this work

Institute of Thermodynamics and Sustainable Propulsion Systems (3130)

Research output: Contribution to journal › Article › peer-review

Abstract

The aim of this work is to present a method for the analysis of an oil supply pump system of a reciprocating compressor based on a split-up approach. The entire oil pump is therefore split-up into three separate pumps: two centrifugal pumps and one helical groove pump. The split-up approach allows optimizing each single part of the pump without calculating the entire system. Different numerical models such as the Volume of Fluid (VOF) method or single phase models are used for each pump. The simulations for each pump are carried out in ANSYS Fluent 15.0. Performance curves are calculated for each pump and combined to a performance curve of the entire oil pump. The simulation results are validated with experimental data of an oil pump test rig. Finally, the presented simulation strategy is compared qualitatively with a numerical simulation of the entire oil pump concerning accuracy and computational time.

Original language	English
Pages (from-to)	135-143
Number of pages	9
Journal	International Journal of Refrigeration
Volume	85
DOIs	https://doi.org/10.1016/j.ijrefrig.2017.09.017
Publication status	Published - 5 Oct 2017

Access to Document

10.1016/j.ijrefrig.2017.09.017

Cite this

@article{e1eb7ed675f04d30a863c1c98b5b0f38,

title = "Numerical analysis of a hermetic reciprocating compressor oil pump system",

abstract = "The aim of this work is to present a method for the analysis of an oil supply pump system of a reciprocating compressor based on a split-up approach. The entire oil pump is therefore split-up into three separate pumps: two centrifugal pumps and one helical groove pump. The split-up approach allows optimizing each single part of the pump without calculating the entire system. Different numerical models such as the Volume of Fluid (VOF) method or single phase models are used for each pump. The simulations for each pump are carried out in ANSYS Fluent 15.0. Performance curves are calculated for each pump and combined to a performance curve of the entire oil pump. The simulation results are validated with experimental data of an oil pump test rig. Finally, the presented simulation strategy is compared qualitatively with a numerical simulation of the entire oil pump concerning accuracy and computational time.",

author = "Stefan Posch and Hopfgartner, {Johann Wilfried} and Erwin Berger and Bernhard Zuber and Peter Sch{\"o}llauf and Raimund Almbauer",

year = "2017",

month = oct,

day = "5",

doi = "10.1016/j.ijrefrig.2017.09.017",

language = "English",

volume = "85",

pages = "135--143",

journal = "International Journal of Refrigeration",

issn = "1879-2081",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Numerical analysis of a hermetic reciprocating compressor oil pump system

AU - Posch, Stefan

AU - Hopfgartner, Johann Wilfried

AU - Berger, Erwin

AU - Zuber, Bernhard

AU - Schöllauf, Peter

AU - Almbauer, Raimund

PY - 2017/10/5

Y1 - 2017/10/5

N2 - The aim of this work is to present a method for the analysis of an oil supply pump system of a reciprocating compressor based on a split-up approach. The entire oil pump is therefore split-up into three separate pumps: two centrifugal pumps and one helical groove pump. The split-up approach allows optimizing each single part of the pump without calculating the entire system. Different numerical models such as the Volume of Fluid (VOF) method or single phase models are used for each pump. The simulations for each pump are carried out in ANSYS Fluent 15.0. Performance curves are calculated for each pump and combined to a performance curve of the entire oil pump. The simulation results are validated with experimental data of an oil pump test rig. Finally, the presented simulation strategy is compared qualitatively with a numerical simulation of the entire oil pump concerning accuracy and computational time.

AB - The aim of this work is to present a method for the analysis of an oil supply pump system of a reciprocating compressor based on a split-up approach. The entire oil pump is therefore split-up into three separate pumps: two centrifugal pumps and one helical groove pump. The split-up approach allows optimizing each single part of the pump without calculating the entire system. Different numerical models such as the Volume of Fluid (VOF) method or single phase models are used for each pump. The simulations for each pump are carried out in ANSYS Fluent 15.0. Performance curves are calculated for each pump and combined to a performance curve of the entire oil pump. The simulation results are validated with experimental data of an oil pump test rig. Finally, the presented simulation strategy is compared qualitatively with a numerical simulation of the entire oil pump concerning accuracy and computational time.

U2 - 10.1016/j.ijrefrig.2017.09.017

DO - 10.1016/j.ijrefrig.2017.09.017

M3 - Article

SN - 1879-2081

VL - 85

SP - 135

EP - 143

JO - International Journal of Refrigeration

JF - International Journal of Refrigeration

ER -

Numerical analysis of a hermetic reciprocating compressor oil pump system

Abstract

Access to Document

Fingerprint

Cite this