DHE Detector Head Electronics Monsoon 80 mm Crate

DHE – Detector Head Electronics Monsoon 80 mm Crate Air Flow 2006 Oct. 19 DES Project -- Vaidas Simaitis, University of Illinois

Crate Parts 60 mm FAN (x 2) on MAIN PLENUM (at both ends, only this end shown here) FAN power supply is in the middle (at both ends) HEAT EXCHANGERS connect in series with ¼” copper tube MONSOON CARDS (10) plug in on this side (6 U x 160 mm Eurocards) HEAT EXCHANGER on CHILLER PLENUM (one at each end of main MONSOON cards) 92 mm FAN (x 2) on FAN PLENUM (one at each end of transition cards) 2006 Oct. 19 TRANSITION CARDS (8) (6 U x 80 mm) DES Project -- Vaidas Simaitis, University of Illinois

Crate (without shield) VICOR power supply with built-in 80 mm fan, 30 cfm listed, pressure drop unknown (x 2) POWER SUPPLY PLENUM MAIN PLENUM 2006 Oct. 19 DES Project -- Vaidas Simaitis, University of Illinois 3

Air Flow Diagram 30 30 CFM VICOR PS 80 mm built in 30 CFM VICOR PS 30 CFM 30 FAN 92 mm 120 CFM COLD WATER HEAT EXCH MAIN PLENUM 1 2006 Oct. 19 COLD PLENUM FAN FAN PS 60 mm 60 CFM 120 CFM 80 mm built in MONSOON TRANSITION CARDS MONSOON MAIN MODULES 30 30 FAN PS FAN 60 mm 60 CFM 120 CFM COLD PLENUM FAN PLENUM PWR SUPPLY PLENUM FAN 92 mm 30 COLD WATER HEAT 120 CFM EXCH MAIN PLENUM 2 DES Project -- Vaidas Simaitis, University of Illinois 4

Heat Exchanger Air Side Pressure Drop The design uses a Lytron M 05 -050 heat exchanger For the target of 120 CFM air flow, the pressure drop is about 0. 36 inches of water 2006 Oct. 19 DES Project -- Vaidas Simaitis, University of Illinois

Air Pressure Diagram PWR SUPPLY PLENUM 30 CFM 30 30 CFM FAN FAN PS +0. 38” 30 30 120 CFM MAIN PLENUM 1 2006 Oct. 19 FAN +0. 40” COLD WATER HEAT EXCH -0. 36” VICOR PS 30 CFM 80 mm built in 60 CFM -0. 02” 120 CFM +0. 02” MONSOON TRANSITION CARDS ~ -0. 04” MONSOON MAIN MODULES ~ -0. 04” 30 30 FAN PS FAN +0. 38” PRESSURE DROP PRESUMED = 0 COLD PLENUM FAN PLENUM +0. 38” H 2 O 30 CFM 60 CFM +0. 02” 120 CFM -0. 02” COLD PLENUM FAN PLENUM 30 -0. 00” H 2 O ? VICOR PS 80 mm built in FAN +0. 40” 30 -0. 38” H 2 O COLD WATER HEAT 120 CFM EXCH MAIN -0. 36” PLENUM 2 DES Project -- Vaidas Simaitis, University of Illinois 6

92 mm FAN Requirements 92 mm FANS must do 0. 40” H 2 O @ 30 CFM FFB 0924 SHE should work If necessary, FFB 0924 EHE works up to 0. 48” 2006 Oct. 19 DES Project -- Vaidas Simaitis, University of Illinois 7

60 mm FAN Requirements 60 mm FANS must do 0. 38” H 2 O @ 30 CFM FFB 0624 SHE should work If necessary, FFB 0624 EHE ok to 0. 48” 2006 Oct. 19 DES Project -- Vaidas Simaitis, University of Illinois 8

92 & 60 mm DELTA fans available 92 mm 60 mm 2006 Oct. 19 DES Project -- Vaidas Simaitis, University of Illinois 9