Maximum Efficiency for High Head Process Pumps – Optimizing Side Channel Pumps

Markus Mosshammer, Helmut Benigni, Helmut Jaberg

Research output: Contribution to conferencePaperResearchpeer-review

Abstract

Side channel pumps provide high pressure at relatively low flow rates. This comes along with a quite low specific speed and thus with the known disadvantage of a quite poor maximum efficiency. This paper describes the detailed analysis and optimization of a typical 1-stage side channel pump with an additional radial suction impeller by means of computational fluid dynamics (CFD) simulations. In a first step, the model was successively generated and it was obvious that it has to contain all details including suction impeller and main stage (both 360° models) as well as the pressure housing and all narrow gaps to provide useful simulation results. Numerical simulations were carried out in a stationary and transient way with scale resolving turbulence models to analyze the components in detail. Finally the CFD-simulations were validated with model tests. For the optimization process it was necessary to generate a reduced numerical model to analyze the effects of more than 300 geometry variations. The findings were then combined to establish the desired objectives. Finally the best combinations were validated again with the full numerical model. Those simulations predict a relative efficiency increase at best efficiency point (BEP) and part load >30% with respect to all given limitations like identical head curve, suction behavior and dimensions.

Conference

Conference47th Turbomachinery & 34th Pump Symposia
Abbreviated titleTPS
CountryUnited States
CityHouston
Period17/09/1820/09/18

Cite this

Mosshammer, M., Benigni, H., & Jaberg, H. (2018). Maximum Efficiency for High Head Process Pumps – Optimizing Side Channel Pumps. Paper presented at 47th Turbomachinery & 34th Pump Symposia, Houston, United States.

Maximum Efficiency for High Head Process Pumps – Optimizing Side Channel Pumps. / Mosshammer, Markus; Benigni, Helmut; Jaberg, Helmut.

2018. Paper presented at 47th Turbomachinery & 34th Pump Symposia, Houston, United States.

Research output: Contribution to conferencePaperResearchpeer-review

Mosshammer, M, Benigni, H & Jaberg, H 2018, 'Maximum Efficiency for High Head Process Pumps – Optimizing Side Channel Pumps' Paper presented at 47th Turbomachinery & 34th Pump Symposia, Houston, United States, 17/09/18 - 20/09/18, .
Mosshammer M, Benigni H, Jaberg H. Maximum Efficiency for High Head Process Pumps – Optimizing Side Channel Pumps. 2018. Paper presented at 47th Turbomachinery & 34th Pump Symposia, Houston, United States.
Mosshammer, Markus ; Benigni, Helmut ; Jaberg, Helmut. / Maximum Efficiency for High Head Process Pumps – Optimizing Side Channel Pumps. Paper presented at 47th Turbomachinery & 34th Pump Symposia, Houston, United States.18 p.
@conference{113ca6b223be440d8358bc2cedd8f5c0,
title = "Maximum Efficiency for High Head Process Pumps – Optimizing Side Channel Pumps",
abstract = "Side channel pumps provide high pressure at relatively low flow rates. This comes along with a quite low specific speed and thus with the known disadvantage of a quite poor maximum efficiency. This paper describes the detailed analysis and optimization of a typical 1-stage side channel pump with an additional radial suction impeller by means of computational fluid dynamics (CFD) simulations. In a first step, the model was successively generated and it was obvious that it has to contain all details including suction impeller and main stage (both 360° models) as well as the pressure housing and all narrow gaps to provide useful simulation results. Numerical simulations were carried out in a stationary and transient way with scale resolving turbulence models to analyze the components in detail. Finally the CFD-simulations were validated with model tests. For the optimization process it was necessary to generate a reduced numerical model to analyze the effects of more than 300 geometry variations. The findings were then combined to establish the desired objectives. Finally the best combinations were validated again with the full numerical model. Those simulations predict a relative efficiency increase at best efficiency point (BEP) and part load >30{\%} with respect to all given limitations like identical head curve, suction behavior and dimensions.",
author = "Markus Mosshammer and Helmut Benigni and Helmut Jaberg",
year = "2018",
month = "9",
day = "19",
language = "English",
note = "47th Turbomachinery & 34th Pump Symposia, TPS ; Conference date: 17-09-2018 Through 20-09-2018",

}

TY - CONF

T1 - Maximum Efficiency for High Head Process Pumps – Optimizing Side Channel Pumps

AU - Mosshammer, Markus

AU - Benigni, Helmut

AU - Jaberg, Helmut

PY - 2018/9/19

Y1 - 2018/9/19

N2 - Side channel pumps provide high pressure at relatively low flow rates. This comes along with a quite low specific speed and thus with the known disadvantage of a quite poor maximum efficiency. This paper describes the detailed analysis and optimization of a typical 1-stage side channel pump with an additional radial suction impeller by means of computational fluid dynamics (CFD) simulations. In a first step, the model was successively generated and it was obvious that it has to contain all details including suction impeller and main stage (both 360° models) as well as the pressure housing and all narrow gaps to provide useful simulation results. Numerical simulations were carried out in a stationary and transient way with scale resolving turbulence models to analyze the components in detail. Finally the CFD-simulations were validated with model tests. For the optimization process it was necessary to generate a reduced numerical model to analyze the effects of more than 300 geometry variations. The findings were then combined to establish the desired objectives. Finally the best combinations were validated again with the full numerical model. Those simulations predict a relative efficiency increase at best efficiency point (BEP) and part load >30% with respect to all given limitations like identical head curve, suction behavior and dimensions.

AB - Side channel pumps provide high pressure at relatively low flow rates. This comes along with a quite low specific speed and thus with the known disadvantage of a quite poor maximum efficiency. This paper describes the detailed analysis and optimization of a typical 1-stage side channel pump with an additional radial suction impeller by means of computational fluid dynamics (CFD) simulations. In a first step, the model was successively generated and it was obvious that it has to contain all details including suction impeller and main stage (both 360° models) as well as the pressure housing and all narrow gaps to provide useful simulation results. Numerical simulations were carried out in a stationary and transient way with scale resolving turbulence models to analyze the components in detail. Finally the CFD-simulations were validated with model tests. For the optimization process it was necessary to generate a reduced numerical model to analyze the effects of more than 300 geometry variations. The findings were then combined to establish the desired objectives. Finally the best combinations were validated again with the full numerical model. Those simulations predict a relative efficiency increase at best efficiency point (BEP) and part load >30% with respect to all given limitations like identical head curve, suction behavior and dimensions.

M3 - Paper

ER -