CLIC cost & power consumption issues

CLIC cost & power consumption issues Philippe Lebrun on behalf of theC&S WG CLIC Meeting 11 December 2009

CLIC 3 TeV cost estimate 2007 (H. Braun & G. Riddone) Indirect impact Direct Main linacs are the cost drivers • The main linacs • account for a large fraction of CLIC cost, • impact strongly on other capital (tunnel, infrastructure, services) and operation (electricity, cooling, maintenance) costs • Very high, unprecedented number of components • constitute a major cost (and to some extent, feasibility) issue • will require novel solutions for manufacturing, installation, maintenance, reliability CLIC 3 TeV (per linac) Modules: 10462 Accelerating str.: 71406 PETS: 35703 MB quadrupoles: 1996 DB quadrupoles: 20924 CLIC 500 GeV (per linac) Modules: 2124 Accelerating str.: 13156 PETS: 6578 MB quadrupoles: 929 DB quadrupoles: 4248 Ph. Lebrun – CLIC meeting 091211

Automatic chains AS discs AS quadrants CLIC AS CLIC PETS CLIC Quads CLIC TBM Flexible workshops Flexible cells, manual work CLIC vs LHC series componentsNumbers, variants & production techniques Ph. Lebrun – CLIC meeting 091211

Cost drivers & potential saving options Main and drive beam production Cost impact L Order of 10 MCHF M Order of 100 MCHF H Order of 1 BCHF C&S WG review not completed! Ph. Lebrun – CLIC meeting 091211

Cost drivers & potential saving optionsTwo-beam modules [1/2] Cost impact L Order of 10 MCHF M Order of 100 MCHF H Order of 1 BCHF Ph. Lebrun – CLIC meeting 091211

Cost drivers & potential saving optionsTwo-beam modules [2/2] Cost impact L Order of 10 MCHF M Order of 100 MCHF H Order of 1 BCHF Ph. Lebrun – CLIC meeting 091211

Cost drivers & potential saving options Interaction regions Cost impact L Order of 10 MCHF M Order of 100 MCHF H Order of 1 BCHF C&S WG review not completed! Ph. Lebrun – CLIC meeting 091211

Cost drivers & potential saving options Infrastructure and services Cost impact L Order of 10 MCHF M Order of 100 MCHF H Order of 1 BCHF C&S WG review not completed! Ph. Lebrun – CLIC meeting 091211

Power consumption @ 3 TeVTotal 415 MW(H. Braun, 2008) By load type By PBS domain Ph. Lebrun – CLIC meeting 091211

Power consumption @ 3 TeVNew iteration (K. Schirm, Nov 2009)[1/2] • AC power distribution & conversion on site • Apply h = 0.9 throughout • RF power flow • First iteration (C&S WG of 091126) shows substantial increase • Identified: increased pulse length in DB linacs, lower modulator efficiency ⇒ Check efficiency values applied throughout RF chain, grid-to-beam • Magnets • Large increase in power of many magnet systems due to increase in • Aperture (MB quads, DB turnarounds, DB quads) • Field strength (DB quads) • Current density (MB quads, DB quads) ⇒ Track « hidden » safety factors in beam physics requirements ⇒ Impose power limit/low current density to magnet designers (with additional benefit of indirect water cooling of coils) ⇒ Review DB quad powering scheme Ph. Lebrun – CLIC meeting 091211

Power consumption @ 3 TeVNew iteration (K. Schirm, Nov 2009)[2/2] • Instrumentation • Large increase in power: number of channels • Particularly damaging as power is dissipated in HVAC system ⇒ Innovative solutions for readout electronics, data transmission, cabling • Infrastructure & services • Not yet reviewed • Previous values taken as percentage of installed capacity (H.B.) • Experimental area • Previous value taken from CMS (H.B.) ⇒ Input needed from physics & detector WG ⇒ Work in progress, to be followed early 2010 ⇒ Different estimates required for different purposes • Overall efficiency comparison with ILC (@ 500 GeV) • Sizing of AC power distribution • Sizing of water cooling & HVAC systems • Operational cost Ph. Lebrun – CLIC meeting 091211

Summary • Cost consciousness well established in CLIC technical working groups • Cost drivers and cost reduction areas identified - as well as their interplay - analysis not yet exhaustive • Analytical costing exercise under way by domain coordinators with input from technical system experts, in domains where technical baseline exists • Cost studies by industrial companies, in particular for large-series components, useful for substantiating cost estimate • New iteration of power consumption estimate started • Feedback on cost and power provided to technical system design • Cost and power consumption can only be finalized after freeze of configuration for CDR Ph. Lebrun – CLIC meeting 091211

CLIC @ 3 TeV Ph. Lebrun – CLIC meeting 091211

CLIC @ 500 GeV Ph. Lebrun – CLIC meeting 091211

Power flow @ 3 TeV 415 MW Wall Plug Modulator auxiliaries 260.4 MW AC power 252.6 MW hREL = .93 aux = 0.97 Main beam injection, magnets, services, infrastructure and detector hM = .90 Power supplies klystrons hK = .70 148.0 MW 1 GHz RF power 154.6 MW hS = .95 Drive beam acceleration hA = .977 hplug/RF = 38.8 % 137.4 MW Drive Beam Power 13.7 MW hRF/main = 27.7 % F(s)= .97  .96 hD = .84 Drive beam power extr. Dumps 107.4 MW hTRS = .98 PETS htot = 6.8 % hT = .96 101.1 MW 12 GHz RF power (2 x 101 kJ x50 Hz) hRF = .277 Main linac 28 MW Main beam

Power flow @ 500 GeV 129.4 MW Wall Plug Modulator auxiliaries 63.4 MW 61.5 MW hREL = .93 Main beam injection, magnets, services, infrastructure and detector aux = 0.97 hM = .90 Power supplies klystrons hK = .70 1 GHz RF power: 36.1 MW 66 MW hS = .95 Drive beam acceleration hA = .977 hplug/RF = 38.8 % Drive Beam power: 33.5 MW 13.7 MW hRF/main = 39.6 % F(s)= .97  .96 hD = .84 Drive beam power extr. Dumps 26.2 MW hTRS = .98 PETS htot = 7.5 % hT = .96 12 GHz RF power: 24.6 MW (2 x 25 kJ x 50 Hz) hRF = .396 Main linac 9.75 MW Main beam

CLIC cost & power consumption issues