ams ground safety review ii sept. 2008 – ksc 1 ams 02 –thermal control system design thermal...
DESCRIPTION
AMS Ground Safety Review II Sept – 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.TRANSCRIPT
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.