MEDSI2016 - List of Authors (Macià, L.)

Paper	Title	Page
MOPE43	Hydraulic Failure Caused by Air in Pipelines of the Experimental Area Ring of ALBA Synchrotron Light Source: Research, Simulations and Solutions	105
	L. Macià UPC, Barcelona, Spain J.J. Casas, C. Colldelram, M. Quispe ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
	After five years in operation of the ALBA Synchrotron Light Source a hydraulic failure caused a maximum decreasing of water flow about 40% of its nominal value, hampering the refrigeration of the local components. The problem was mainly caused by the air accumulated in pipes due to very low velocities of water flow. A literature review was conducted about the minimum water flow velocity for removing air in pipelines as design criteria. The aim of this work is to develop hydraulic solutions in order to achieve the minimum flowrate in pipelines of the Experimental Area (EA) ring. In the short term it is proposed to install a controlled bypass in the EA. A numerical simulation using the software Pipe Flow Expert has been implemented in order to determine the requirements of the bypass that works under different conditions to assure a minimum flowrate all along the ring. The velocity map in EA ring is simulated for different scenarios: 180 and 360 degrees distribution for both clockwise and anticlockwise rotation. For the long term a design of pipes with variable cross section is proposed which optimizes the flow velocity magnitude in EA ring in agreement with the design criteria.
	Poster MOPE43 [1.347 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2016-MOPE43
About •	paper received ※ 10 September 2016 paper accepted ※ 15 September 2016 issue date ※ 22 June 2017
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Hydraulic Failure Caused by Air in Pipelines of the Experimental Area Ring of ALBA Synchrotron Light Source: Research, Simulations and Solutions

105

L. Macià
UPC, Barcelona, Spain
J.J. Casas, C. Colldelram, M. Quispe
ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain

After five years in operation of the ALBA Synchrotron Light Source a hydraulic failure caused a maximum decreasing of water flow about 40% of its nominal value, hampering the refrigeration of the local components. The problem was mainly caused by the air accumulated in pipes due to very low velocities of water flow. A literature review was conducted about the minimum water flow velocity for removing air in pipelines as design criteria. The aim of this work is to develop hydraulic solutions in order to achieve the minimum flowrate in pipelines of the Experimental Area (EA) ring. In the short term it is proposed to install a controlled bypass in the EA. A numerical simulation using the software Pipe Flow Expert has been implemented in order to determine the requirements of the bypass that works under different conditions to assure a minimum flowrate all along the ring. The velocity map in EA ring is simulated for different scenarios: 180 and 360 degrees distribution for both clockwise and anticlockwise rotation. For the long term a design of pipes with variable cross section is proposed which optimizes the flow velocity magnitude in EA ring in agreement with the design criteria.

Poster MOPE43 [1.347 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2016-MOPE43

About •

paper received ※ 10 September 2016 paper accepted ※ 15 September 2016 issue date ※ 22 June 2017

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)