Author: Bargalló, E.
Paper Title Page
MOPIK040 Value Engineering of an Accelerator Design During Construction 592
 
  • E. Bargalló, M. Eshraqi, M. Lindroos, S. Molloy, D.C. Plostinar, A. Sunesson
    ESS, Lund, Sweden
  • F. Gerigk
    CERN, Geneva, Switzerland
 
  Value engineering is an important part of the process of designing and realising large-scale installations such as high power accelerators. This typically occurs during the later part of the design stage of the system, however such exercises may also be requested by funding bodies at later stages in order to manage project contingency. Naturally, the later this is done, the more challenging it becomes. In this paper we report on a recently concluded Value Engineering effort at the European Spallation Source. The challenges presented by the initiation of such an exercise during the construction phase are discussed. In addition, we present and discuss the various options that we examined, and indicate the philosophy and figures of merit used to narrow down these options. The final conclusion will be presented.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-MOPIK040  
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TUPIK078 Machine Protection Risk Management of the ESS Target System 1876
 
  • R. Andersson, E. Bargalló, L.S. Emås, J. Harborn, A. Lundgren, U. Odén, J. Ringnér, K. Sjögreen
    ESS, Lund, Sweden
 
  The European Spallation Source target system is, together with the proton linac, the main component in the spallation process. ESS will use a 4-ton, helium-cooled, rotating tungsten target for this purpose, and its protection and availability is paramount to the success of ESS. High demands are placed on all of the target equipment, including cooling, movement, rotation, and timing, in order to reach the facility-wide 95% availability goal for neutron production. Machine protection has defined a set of protection functions that are to be implemented for the target system. This paper describes the development of these protection functions through the use of classic HAZOPs combined with modern safety standard lifecycle management. The implementation of these functions is carried out through close collaboration between the target system owners and the machine protection group at ESS.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-TUPIK078  
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TUPIK079 Development and Status of Protection Functions for the Normal Conducting LINAC at ESS 1880
 
  • R. Andersson, E. Bargalló, S. Kövecses, A. Nordt, M. Zaera-Sanz
    ESS, Lund, Sweden
  • C. Hilbes, M. Rejzek
    ZHAW, Winterthur, Switzerland
 
  The European Spallation Source faces a great challenge in succeeding with its ambitious availability goals. The aim is to construct a machine that allows for 95% availability for neutron beam production. This goal requires a robust protection system that allows for high availability by continuously monitoring and acting on the machine states, in order to avoid long facility downtimes and optimize the operation at any stage. The normal conducting section consists of the first 48 meters of the machine, and performs the initial acceleration, bunching, steering, and focusing of the beam, which sets it up for optimal transition into the superconducting section. Through a fit-for-purpose risk management process, a set of protection functions has been identified. The risk identification, analysis, and treatment were done in compliance with modern safety and ISO standards. This ensures that the risks, in this case downtime and equipment damage, are properly prevented and mitigated. This paper describes this process of defining the protection functions for the normal conducting linac at ESS.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-TUPIK079  
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