The use of a 90 metre thermosiphon cooling plant and associated custom ultrasonic instrumentation in the cooling of the atlas inner detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F17%3A00325932" target="_blank" >RIV/68407700:21220/17:00325932 - isvavai.cz</a>

Výsledek na webu

<a href="http://accelconf.web.cern.ch/AccelConf/icalepcs2017/papers/thpha193.pdf" target="_blank" >http://accelconf.web.cern.ch/AccelConf/icalepcs2017/papers/thpha193.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.18429/JACoW-ICALEPCS2017-THPHA193" target="_blank" >10.18429/JACoW-ICALEPCS2017-THPHA193</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The use of a 90 metre thermosiphon cooling plant and associated custom ultrasonic instrumentation in the cooling of the atlas inner detector

Popis výsledku v původním jazyce

A new 60kW thermosiphon fluorocarbon cooling plant has been commissioned to cool the silicon tracker of the ATLAS experiment at the CERN LHC. The thermosiphon operates over a height of 90 metres and is integrated into the CERN UNICOS system and the ATLAS detector control system. The cooling system uses custom ultrasonic instrumentation to measure very high coolant vapour flow (up to 1.2 kg/second), to analyse binary gas mixtures and detect leaks. In these instruments ultrasound pulses are transmitted in opposite directions in flowing gas streams. Pulse transit time measurements are used to calculate the flow rate and the sound velocity, which – at a given temperature and pressure – is a function of the molar concentration of the two gases. Gas composition is computed from comparisons of real-time sound velocity measurements with a database of predictions, using algorithms running in the Siemens SIMATIC WinCC SCADA environment. A highly-distributed network of five instruments is currently integrated into the ATLAS DCS. Details of the thermosiphon, its recent operation and the performance of the key ultrasonic instrumentation will be presented.

Název v anglickém jazyce

The use of a 90 metre thermosiphon cooling plant and associated custom ultrasonic instrumentation in the cooling of the atlas inner detector

Popis výsledku anglicky

A new 60kW thermosiphon fluorocarbon cooling plant has been commissioned to cool the silicon tracker of the ATLAS experiment at the CERN LHC. The thermosiphon operates over a height of 90 metres and is integrated into the CERN UNICOS system and the ATLAS detector control system. The cooling system uses custom ultrasonic instrumentation to measure very high coolant vapour flow (up to 1.2 kg/second), to analyse binary gas mixtures and detect leaks. In these instruments ultrasound pulses are transmitted in opposite directions in flowing gas streams. Pulse transit time measurements are used to calculate the flow rate and the sound velocity, which – at a given temperature and pressure – is a function of the molar concentration of the two gases. Gas composition is computed from comparisons of real-time sound velocity measurements with a database of predictions, using algorithms running in the Siemens SIMATIC WinCC SCADA environment. A highly-distributed network of five instruments is currently integrated into the ATLAS DCS. Details of the thermosiphon, its recent operation and the performance of the key ultrasonic instrumentation will be presented.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20303 - Thermodynamics

Projekt

<a href="/cs/project/LM2015058" target="_blank" >LM2015058: Výzkumná infrastruktura pro experimenty v CERN</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 16th International Conference on Accelerator and Large Experimental Control Systems

ISBN

978-3-95450-193-9

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

1890-1895

Název nakladatele

ALBA

Místo vydání

Cerdanyola del Vallès

Místo konání akce

Barcelona

Datum konání akce

8. 10. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—