MVD COOLING STATUS COOLING PLANT UPDATE ADDITION of

MVD COOLING STATUS COOLING PLANT UPDATE: - ADDITION of the NEW CIRCUITS FOR GBT AND DC-DC Converter BOARDS IN THE COOLING PLANT - THERMAL STUDY OF GBT AND DC-DC CONVERTER - DEFINE OF THE PIXEL, STRIP AND SEVICES MODULARITY - INTEGRATION OF THE MVD COOLING CIRCUIT PATHS INSIDE THE PANDA AREA - DEFINITION OF THE PACKAGE SECTION OF ALL THE COOLING TUBE ALONG THE PATH - EVALUATION OF PRESSURE DROPS ALONG THE PATH - INSERTION OF PATCH PANELS - OPEN QUESTIONS S. COLI - DEC. 2014 1

DIMENSION of the HYDRAULIC CIRCUIT for MVD SYSTEM (PIXEL + STRIP + SERVICES): PIXEL - 42 TUBES: • 65 m INLET and 65 m RETURN outside the magnet • 2, 5 m INLET and 2, 5 mt RETURN inside the magnet • 2, 3 m in the MVD (53 U tubes) WATER VOLUME: about 160 liters MASS FLOW RATE: about 16 lit/min COOLING CIRCUITS: 21 TUBE MODULARITY: circuits with 3 U tubes + circuits with 2 U tubes (0, 3 lit/min each U tube) STRIP - 44 TUBES: • 65 m INLET and 65 m RETURN outside the magnet • 2, 5 m INLET ad 2, 5 m RETURN inside the magnet • 2, 7 m in the MVD WATER VOLUME: about 190 liters MASS FLOW RATE: about 10 lit/min COOLING CIRCUITS: 22 TUBE MODULARITY: circuits with 3 U tubes + circuits with 2 U tubes + Disk-Tubes (0, 3 lit/min each tube) SUMMARING • About 640 lit • About 56 lit/min • About 75 circuits • 150 Tubes SERVICES - 64 TUBES: • 65 m INLET and 65 m RETURN outside the magnet • 2 m INLET ad 2 m RETURN inside the magnet • 1 m in front of MVD WATER VOLUME: about 270 liters MASS FLOW RATE: about 30 lit/min COOLING CIRCUITS: 32 TUBE MODULARITY: 32 circuits (0, 9 lit/min each) S. COLI - DEC. 2014 2

GBT AND DC-DC CONVERTER BOARDS PRELIMINARY THERMAL ANALYSES GBT Boards: Wing in Al (175 W/m. K) Tube Φin 5 mm, Φest 6 mm in SS (15 W/m. K) Chip Area = 20 mm*20 mm Power Flux= 10000 W/m 2 TOT Power= 64 W (=4*16 GBT boards) WING DIMENSIONS: 12 mm X 30 mm X 780 mm INNER WATER TEMP=18°C WATER FLOW RATE= 0, 9 lit/min Alpha= 1700 W/m 2 K Ideal contact between tube and wing Glue layers neglected DC-DC Converter Boards: Wing in Al (175 W/m. K) Tube Φin 5 mm, Φest 6 mm in SS (15 W/m. K) Chip Area = 10 mm*10 mm Power Flux= 30000 W/m 2 TOT Power= 132 W (=3*44 DCDC-Converter boards) WING DIMENSIONS: 10 mm X 25 mm X 424 mm INNER WATER TEMP=18°C WATER FLOW RATE= 0, 9 lit/min Alpha= 1700 W/m 2 K Ideal contact between tube and wing Glue layers neglected S. COLI - DEC. 2014 3

MVD COOLIG CIRCUIT MODULARITY COOLING CIRCUITS FOR 3 U tubes OUTSIDE MAGNET 5 mt PP 3 fi 8 mm 0, 9 lit/min fi 10 mm 0, 9 lit/min INSIDE MAGNET 2, 5 mt PP 4 CIRCUITS for 2 U tubes INSIDE MVD MAGNET 1 m+Utube 1 m +Utube fi 6 mm 0, 9 lit/min fi 6 mm 0, 9 lit/min INSIDE MAGNET fi 2, 5 mm 0, 3 lit/min 2, 5 mt fi 6 mm 0, 6 lit/min OUTSIDE 5 mt PP 4 fi 10 mm 0, 6 lit/min PP 3 U tubes (fe 2 mm. ) in MP 35 N fi 2, 5 mm 0, 3 lit/min fi 6 mm 0, 6 lit/min PP 4 fi 8 mm 0, 6 lit/min PP 3 COOLING CIRCUITS FOR DC-DC CONVERTER and GBT OUTSIDE MAGNET INSIDE MAGNET 5 mt PP 3 fi 8 mm 0, 9 lit/min 2 PP 4 INSIDE MVD Utube=1 m fi 6 mm 0, 9 lit/min U tubes (fe 5 mm. ) in SS 316 S. COLI - DEC. 2014 PP 3 fi 10 mm 0, 9 lit/min PP 4 fi 6 mm 0, 9 lit/min 4

DIMENSION of the HYDRAULIC CIRCUIT for MVD SYSTEM (PIXEL + STRIP + SERVICES): TUBES FROM COOLING PLANT TO MAGNET: - 21+22+32 INLET LINES= 75 INSULATED TUBES [Diam ext. 16 mm each+ insulation] - 21+22+32 RETURN LINES = 75 TUBES [Diam ext. 16 mm] = 0, 65 m* 0, 15 m total section for Tubes FROM COOLING PLANT TO PANDA (Stainless steel) IN FRONT OF THE MAGNET DOOR (PP 4) - 150 Pressure sensors (one on each tube) CLOSE TO MVD (immediately in front of the magnet) + fittings - 150 Readout cables and Power supply TUBES INSIDE THE MAGNET (around the beam pipe) - 8+8 Polyurethane tubes - inlet + return lines (diam. 6 -8 mm) for GBT Boards. - 24+24 Polyurethane tubes – inlet + return lines (diam. 6 -8 mm) for DC-DC Converter Boards - 43+43 Polyurethane tubes – inlet + return lines (diam. 6 -8 mm) for MVD internal patch panels - 85+85 Polyurethane tubes- inlet + return lines (diam. 2, 5 -4 mm) from internal patch panels to MVD - 8+24 U-Tubes for GBT and DC-DC Converter Boards in Stainless steel INSIDE THE MVD - 53 U-tubes for PIXEL + 24 U-tubes for STRIPS + 8 Strip Disks in MP 35 N THE COOLING PLANT - PLC - Tank - Vacuum pump - Inlet pump + filter - Water cleaning unit - Manifolds and 75 inlet tubes - Manifolds and 75 return tubes - Heat exchanger - 75 pressure regulator, + 75 flow meters + 75 valves on return lines + 75 water Temperature sensors - 150 pneumatic valves - Other sensors (tank level indicator, pump pressure sensors, water temperature sensors…) S. COLI - DEC. 2014 5

MVD HYDRAULIC CIRCUIT PRESSURE SENSORS PNEUMATIC VALVES TEMPERATURE SENSORS FLOW METERS PRESURE REGULATORS PNEUMATIC VALVES COOLING PLANT -PUMP -VACUUM PUMP -PLC -CONTROLS HEAT EXCHANGER S. COLI - DEC. 2014 6

PANDA AREA PANDA FINAL POSITION PANDA in ASSEMBLY POSITION MVD TUBES PATH MVD COOLING PLANT S. COLI - DEC. 2014 7

MVD COOLING PLANT – OUTSIDE THE PIT INLET RACKS (PIXEL, STRIP, SERVICES) t m 8 , 3 t m 3, 5 HEAT EXCHANGER (? ) PLC S. COLI - DEC. 2014 8

MVD COOLING PLANT – IN THE PIT TANK+ VACUUM PUMP RETURN RACKS (PIXEL, STRIP, SERVICES) INLET PUMP + WATER CLEANING UTIT S. COLI - DEC. 2014 9

MVD COOLING SYSTEM – INLET AND RETURN TUBES PATH INSIDE PANDA AREA TUBE PAKAGE SECTION ALL ALONG THE PATH [0, 65 m X 0, 15 m] INLET LINES h= 2 mt RETURN LINES S. COLI - DEC. 2014 10

MVD COOLING SYSTEM – INLET AND RETURN TUBES PATH INSIDE PANDA AREA TUBE LENGHT: ~ 65 m S. COLI - DEC. 2014 11

MVD COOLING SYSTEM– PATCHPANELS PP 4: PRESSURE SENSORS AND FITTINGS, AFTER CAL INSERTION BEFORE CAL INSERTION PP 2: FOR ASSEMBLY PP 1: TRANSITION (FLEXMETAL TUBES) PP 3: FINAL PATH ? S. COLI - DEC. 2014 12

MVD COOLING SYSTEM– REQUEST 1 THE RETURN TUBES AT THE HEIGHT OF THE FLOOR? S. COLI - DEC. 2014 CROSSING PROBLEM? 13

MVD COOLING SYSTEM– REQUEST 2 CAN THE MVD OCCUPY THE RIGHT SIDE OF THE PIT? AVAILABLE AREA? CROSSING PROBLEM? S. COLI - DEC. 2014 14

PRESSURE DROP IN THE COOLING CIRCUITS S. COLI - DEC. 2014 CIRCUITS FOR 3 U TUBES G[g/s] G[l/m] L[m] di-de[mm] V[m/s] Re P_drop[bar] INLET OUT OF THE MAGNET 15 0, 9 65 8 -12 0, 3 2400 0, 2 INLET IN THE MAGNET 15 0, 9 2, 5 6 -8 0, 53 3200 0, 03 IN THE MVD (PIXEL) 5 0, 3+1+1 1, 84+2, 5 1, 88+1 3462 0, 25+0, 32 RETURN IN THE MAGNET 15 0, 9 2, 5 6 -8 0, 53 3200 0, 03 RETURN OUT OF THE MAGNET 15 0, 9 65 10 -14 0, 19 2000 0, 04 CIRCUITS FOR 2 U TUBES G[g/s] G[l/m] L[m] di-de[mm] V[m/s] Re P_drop[bar] INLET OUT OF THE MAGNET 10 0, 6 65 8 -12 0, 2 1600 0, 06 INLET IN THE MAGNET 10 0, 6 2, 5 6 0, 35 2200 0, 01 IN THE MVD (PIXEL) 5 0, 3+1+1 1, 84+2, 5 1, 88+1 3462 0, 25+0, 32 RETURN IN THE MAGNET 10 0, 6 2, 5 6 0, 35 2200 0, 01 RETURN OUT OF THE MAGNET 10 0, 6 65 10 -14 0, 13 1300 0, 03 CIRCUIT FOR 1 U TUBE SERVICES G[g/s] G[l/m] L[m] di-de[mm] V[m/s] Re P_drop[bar] INLET OUT OF THE MAGNET 15 0, 9 65 8 -12 0, 3 2400 0, 2 INLET IN THE MAGNET 15 0, 9 2 6 -8 0, 53 3200 0, 03 IN THE MVD 15 0, 9 1 5 0, 76 3800 0, 03 RETURN IN THE MAGNET 15 0, 9 2 6 -8 0, 53 3200 0, 03 RETURN OUT OF THE MAGNET 15 0, 9 65 10 -14 0, 19 2000 0, 04 LIMIT=0, 6 bar 15

MVD COOLING SYSTEM – QUESTIONS • • • Can the return tube be located on the floor along the external wall? Can the MVD occupy the right side of the pit ? From where does the cold water arrive? AIR line at 6 bar? Where? Is the door a passage? Can we put the patch panels? The small patch panel 4 on the floor held by the CAL support (charriot)? After CAL insertion, we need to cut tubes to patch panel 4 (? ) The path for the flex tubes from PP 3 to PP 4? S. COLI - DEC. 2014 16