Browsing by Author "Tonnellier, Xavier"

Browsing by Author "Tonnellier, Xavier"

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  • Sub-surface damage issues for effective fabrication of large optics 
    Tonnellier, Xavier; Shore, Paul; Morantz, Paul; Baldwin, A.; Walker, D.; Yu, G.; Evans, R. (2008-07-14)
    A new ultra precision large optics grinding machine, BoX®has been developed at Cranfield University. BoX®islocated at the UK's Ultra Precision Surfaces laboratory at the OpTIC Technium. This machine offers a rapidand ...
  • Subsurface damage in precision ground ULE® and Zerodur® surfaces 
    Tonnellier, Xavier; Morantz, Paul; Shore, Paul; Baldwin, A.; Evans, R.; Walker, D. D. (Optical Society of America (OSA), 2007-09-17)
    The total process cycle time for large ULE®and Zerodur®optics can be improved using a precise and rapid grinding process, with low levels of surface waviness and subsurface damage. In this paper, the amounts of defects ...
  • Surface quality of a 1m Zerodur part using an effective grinding mode 
    Tonnellier, Xavier; Shore, Paul; Morantz, Paul; Orton, D. (2012-07-11)
    A new ultra precision large optics grinding machine, BoX(R), has been developed at Cranfield University. This machine is located at the UK's Ultra Precision Surfaces laboratory at the OpTIC Technium, North Wales. This ...
  • Theoretical and experimental analysis of an innovative dual-axis tracking linear Fresnel lenses concentrated solar thermal collector 
    Perini, Simoni; Tonnellier, Xavier; King, Peter; Sansom, Christopher L. (Elsevier, 2017-06-21)
    Linear concentrating solar thermal systems offer a promising method for harvesting solar energy. In this paper, a model for a novel linear Fresnel lens collector with dual-axis tracking capability is presented. The main ...
  • Thermal effects compensation and associated uncertainty for large magnet assembly precision alignment 
    Doytchinov, Iordan; Shore, Paul; Nicquevert, Bertrand; Tonnellier, Xavier; Heather, A.; Modena, Michele (Elsevier, 2019-06-12)
    Big science and ambitious industrial projects continually push technical requirements forward beyond the grasp of conventional engineering techniques. An example of these are the extremely tight micrometric assembly and ...
  • Towards the development of the supply chain of concentrated solar power 
    Tjahjono, Benny; Martinez-Conde Moreno, Javier; Tonnellier, Xavier; Schaeffer, Roberto; Portugal-Pereira, Joana (International Federation of Logistics and SCM Systems, 2016-07-29)
    This work focuses on the investigation into the planning of renewable energy power plants in Brazil using the Concentrated Solar Power (CSP) technology. The main aim of the paper is to present an analysis of the planning ...