AMS Ground Safety Review II Sept. 2008 – KSC 1

AMS 02 –Thermal Control

System Design

Thermal controlGSE at KSC

AMS Ground Safety Review II Sept. 2008 – KSC 2

AMS 02 –Thermal Control

System Design

TCS – GSE scope

• AMS at KSC will be in flight configuration (radiators)

• The TCS GSE shall allow the correct detector operation during the ground integration.

• The only GSE to be used at KSC will be electrically powered fans of two kind, to provide forced convection cooling.

• Several fans will blow air towards specific AMS components in order to keep their temperature in the operative range.

AMS Ground Safety Review II Sept. 2008 – KSC 3

AMS 02 –Thermal Control

System Design

Elements to be cooled

– Air cooling • Electronic crates and XPDs

– Main radiators (RAM and WAKE) mounted

• Cryocoolers (with LHP integrated, hence sunk to the zenith radiators)

• PDS (mounted on WAKE radiator)• CAB (with LHP integrated, hence sunk to the wake radiator)

• All other subdetectors don’t need forced convection cooling, free convection being sufficient.

AMS Ground Safety Review II Sept. 2008 – KSC 4

AMS 02 –Thermal Control

System Design

Type A Fans

• Quantity 12

• Diameter > 0.45 m

• Flow Rate 4100 m3/h

• Unit power (reference value) 135 W

• Voltage 110 V

• AC supply Frequency 60 Hz

AMS Ground Safety Review II Sept. 2008 – KSC 5

AMS 02 –Thermal Control

System Design

• Four fans will blow to the electronic units mounted on the Ram radiator, having their axis parallel to the radiator

• Four fans will blow to the electronic units mounted on the Wake radiator , having their axis parallel to the radiator

• Four fans will blow the Zenith Radiator, having their axis parallel to the 4 zenith radiator quadrants

AMS Ground Safety Review II Sept. 2008 – KSC 6

AMS 02 –Thermal Control

System Design

Fans on zenith radiators

Zenith Radiator

Tracker Radiator

WAKE Radiator

Tracker Radiator

RAM Radiator

Main Radiator

WakeMain Radiator

Ram

RamWake

AMS Ground Safety Review II Sept. 2008 – KSC 7

AMS 02 –Thermal Control

System Design

Zenith Radiator

Tracker Radiator

WAKE Radiator

Tracker Radiator

RAM Radiator

Main Radiator

WakeMain Radiator

Ram

RamWake

Fans on RAM radiator

AMS Ground Safety Review II Sept. 2008 – KSC 8

AMS 02 –Thermal Control

System Design

Zenith Radiator

Tracker Radiator

WAKE Radiator

Tracker Radiator

RAM Radiator

Main Radiator

WakeMain Radiator

Ram

RamWake

Fans on WAKE radiator

AMS Ground Safety Review II Sept. 2008 – KSC 9

AMS 02 –Thermal Control

System Design

AMS Ground Safety Review II Sept. 2008 – KSC 10

AMS 02 –Thermal Control

System Design

AMS Ground Safety Review II Sept. 2008 – KSC 11

AMS 02 –Thermal Control

System Design

Type B Fans

• Quantity 3

• Diameter >0.18 m

• Flow Rate 740 m3/h

• Unit power (reference value) 50 W

• Voltage 110 V

• AC supply Frequency 60 Hz

AMS Ground Safety Review II Sept. 2008 – KSC 12

AMS 02 –Thermal Control

System Design

Type B fans usage

• One fan is dedicated to the PDS, and it shall work at the same time of the Wake radiator fans.

• The other two fans shall blow air to the CAB on two of its faces (wake and starboard).

AMS Ground Safety Review II Sept. 2008 – KSC 13

AMS 02 –Thermal Control

System Design

Type B fans location

Zenith Radiator

Tracker Radiator

WAKE Radiator

Tracker Radiator

RAM Radiator

Main Radiator

WakeMain Radiator

Ram

RamWake

AMS Ground Safety Review II Sept. 2008 – KSC 14

AMS 02 –Thermal Control

System Design

Quality stamp on COTS

• All fans will be commercial off the shelf (COTS) and have the European “CE” quality symbol on it.

• The supplier of the fans is TBD.