Clic cost power consumption issues
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CLIC cost & power consumption issues. Philippe Lebrun on behalf of the C&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,

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CLIC cost & power consumption issues

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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.: 71406PETS: 35703

MB quadrupoles: 1996DB quadrupoles: 20924

CLIC 500 GeV (per linac)

Modules: 2124

Accelerating str.: 13156PETS: 6578

MB quadrupoles: 929DB 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

LOrder of 10 MCHF MOrder of 100 MCHF HOrder 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

LOrder of 10 MCHF MOrder of 100 MCHF HOrder of 1 BCHF

Ph. Lebrun – CLIC meeting 091211


Cost drivers & potential saving optionsTwo-beam modules [2/2]

Cost impact

LOrder of 10 MCHF MOrder of 100 MCHF HOrder of 1 BCHF

Ph. Lebrun – CLIC meeting 091211


Cost drivers & potential saving options Interaction regions

Cost impact

LOrder of 10 MCHF MOrder of 100 MCHF HOrder of 1 BCHF

C&S WG review not completed!

Ph. Lebrun – CLIC meeting 091211


Cost drivers & potential saving options Infrastructure and services

Cost impact

LOrder of 10 MCHF MOrder of 100 MCHF HOrder 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


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