1 / 8

M. Battistin (EN/CV/DC) 6 th July 2009

DCP WP3 - First thermo-siphon workshop. M. Battistin (EN/CV/DC) 6 th July 2009. Moving out from compressors. ATLAS requested to evaluate a possible alternative to the present compressor station. The main reasons are: Reliability: many failures registered in the present compressors

anakin
Télécharger la présentation

M. Battistin (EN/CV/DC) 6 th July 2009

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. DCP WP3-First thermo-siphon workshop M. Battistin (EN/CV/DC)6th July 2009

  2. Moving out from compressors • ATLAS requested to evaluate a possible alternative to the present compressor station. The main reasons are: • Reliability: many failures registered in the present compressors • Cleanliness: wear of components oblige to an important filtering process • Leaks: developing with time due (in part) to vibrations pneumatic valve liquid tank others manual valve pneumatic valve 4 liquid lines PR Sub-cooler thermal screen mixed water condenser USA15 UX15 dummy load pixel manual valve 6 Haug compressors 4 gas lines 6 X SCT BPR manual valve

  3. The objective of the workshop Low temperature Chiller condenser • Presenting first results and collecting suggestions for the development of the study on the alternative gravity driven circulation solution. • The thermo-siphon solution could provide: • Reliability: no active component in the system • Cleanliness: no wear of components • Leaks: reduction of connection points and no vibrations liquid tank pneumatic valve Surface pneumatic valve USA15 others manual valve 4 liquid lines PR Heater thermal screen USA15 UX15 dummy load pixel manual valve 4 gas lines 6 X SCT BPR manual valve

  4. P&I of the installation -55 °C = 400 mbar -67 °C = 200 mbar 6 kW Return DP = 80 mbar -40 °C = 850 mbar -30 °C = 1300 mbar -25 °C = 1670 mbar 2 kW

  5. A low efficiency cycle C B D E F A

  6. The project organization • Alexandre Moraux, Elena Perez, Michele Battistin, Jan Godlewski, DaniloGiugni, KonradGugla, Johan Bremer. • Thermo-siphon first Action list: • First Workshop on thermo-siphon solutions at CERN 6th July 09. • Technical and economical definition of the low temperature chiller solution – Visit to first possible supplier on June 29th. • Provisional design of the first prototype – July 09. • Installation of the transfer lines in the PX15 – August 09. • Prototype assembly – Sept-Nov 09. • Commissioning and test – Dec 09-March 10 • There is a need/possibility of a fast and intermediate prototype to be installed with recuperation material using an high of 10-20 meters?

  7. Conclusions • Gravity driven circulation evaporative cooling systems seems a promising technology to replace the compressors in the evaporative cooling systems • It is foreseen to install a test bench in PX15; the design parameters of this test bench installation fit with ATLAS IBL cooling needs. • We are evaluating the need to realize a very small scale test bench to validate the first design assumptions • Perfluorocarbon blends solutions could be adopted to the thermo-siphon to improve the performances. Azeotropicity could be a problem.

  8. Agenda • 09:00 Introduction and main lines of the projects Michele Battistin (CERN) • 09:20 Thermo siphon pre design Alexandre Moraux • 09:50 Quality Plan and Project Planning Elena Perez Rodriguez • 10:10 Piping integration in PX15 Alexander Bitadze • 10:20 coffee break Gregory Hallewell • 10:40 Very low condensation temperature chillers solution Michele Battistin • 11:00 C3F8 blends (30') • 11:30 Scalability of the plant form 2 to 70 and finally 180 kW Jan Godlewski • 12:00 Risk Analysis (30') DaniloGiugni • 12:30 Lunch (1h30') • 14:00 Process Simulation of the plant (30') Alexandre Moraux • 14:30 Variable flow solution (30') Gregory Hallewell

More Related