1. FEE COOLING UPDATE CGEM Workshop - IHEP - June 13th 2017
G.Giraudo INFN Torino

2. A COPPER BOX (HEAT EXCHANGER) ADDED TO FE1 BOARDS
THERMAL CONTACT THROUGH THERMAL INTERFACE MATERIALS (ELECTRICAL INSULATOR)
(THERM-A-GAP PARKER CHOMERICS, k=6.5 W/m∙K)
(THERMFLOW 777 PARKER CHOMERICS, k=7.7 W/m∙k)
DELIVERY & HEXAUST OF THE COOLANT THROUGH SS 316 TUBES & FITTINGS
ALL COMPONENTS ARE BRAISED/GLUED
BOX FIXED ON FE1 BOARD WITH SCREWS (not shown)
WEIGHT < 50 g
LAYER 3
LAYERS 1&2
CGEM Workshop - IHEP - June 13th 2017
G.Giraudo INFN Torino

3. Tmax =21.5 oC WATER TIN18 °C 0.5 l/min ΔP=0.05bar
THERMAL LOAD=0.8 W
WATER TIN18 °C
0.5 l/min
ΔP=0.05bar
THERMAL LOAD=0.8 W
CGEM Workshop - IHEP - June 13th 2017
G.Giraudo INFN Torino

4. FIRST PROTOTYPES - ALL PARTS ARE GLUED WITH ARALDITE 2014
CURED AT 150 °C/2 h
TEST IN PRESSURE/WATER 4 bar/5 h
PRESSURE DROP TEST NOT PERFORMED YET
CGEM Workshop - IHEP - June 13th 2017
G.Giraudo INFN Torino

5. HEAT EXCHANGER LAYER 1&2 Tmax =29.7 °C
4 RESISTORS (100Ω) FIXED WITH THERMAL GLUE (k=4 W/m∙K)
TWATER = 18 °C - q=0.5 l/min
Tmax =29.7 °C
CGEM Workshop - IHEP - June 13th 2017
G.Giraudo INFN Torino

6. HEAT EXCHANGER LAYER 3 Tmax =28.8 °C
4 RESISTORS (100Ω) FIXED WITH THERMAL GLUE (k=4 W/m∙K)
TWATER = 18 °C - q=0.5 l/min
Tmax =28.8 °C
CGEM Workshop - IHEP - June 13th 2017
G.Giraudo INFN Torino

7. LAYER 3 18 heat exchangers in two groups (9+9) 1 line IN + 1 line OUT
DELIVERY
EXHAUST
CGEM Workshop - IHEP - June 13th 2017
G.Giraudo INFN Torino

8. LAYER 2 14 heat exchangers in two groups (8+6) 1 line IN + 1 line OUT
DELIVERY
EXHAUST
CGEM Workshop - IHEP - June 13th 2017
G.Giraudo INFN Torino

9. LAYER 1 8 heat exchangers in one group 1 line IN + 1 line OUT EXHAUST
DELIVERY
CGEM Workshop - IHEP - June 13th 2017
G.Giraudo INFN Torino

10. BES III CGEM INLET LINES 2.5 l/min ø6xø4 - 0.5 l/min
ΔP=0.45 bar - 9 FEE modules
ø8xø6 - 1 l/min
ΔP=0.025 bar/m - Re=2650
LAYER 3
ΔP=0.015 bar/m - Re=3530
ø6xø l/min
ΔP=0.45 bar - 9 FEE modules
ø4xø l/min
ΔP=0.30 bar - 6 FEE modules
ø6xø4 - 1 l/min
LAYER 2
ΔP=0.23 bar/m - Re=4230
2.5 l/min
ΔP=0.08 bar/m - Re=5300
ø4xø l/min
ΔP=0.40 bar - 8 FEE modules
ø6xø l/min
ø4xø l/min
LAYER 1
ΔP=0.025 bar/m - Re=2650
ΔP=0.23 bar/m - Re=4230
ΔP=0.40 bar - 8 FEE modules
BES III
CGEM
CGEM Workshop - IHEP - June 13th 2017
G.Giraudo INFN Torino

11. HYDRAULIC LAYOUT
PATCH PANEL
CGEM Workshop - IHEP - June 13th 2017
G.Giraudo INFN Torino

12. SHOPPING LIST 2 CHILLERS: Pterm≈0.5 kW, q≈4 l/min, P≈4 bar
40 HEAT EXCHANGERS LAYER 3
45 HEAT EXCHANGERS LAYER 1 & 2
FITTINGS
PATCH PANEL(S)
HYDRAULIC COMPONENTS
ANCILLARIES
ESTIMATED TOTAL COST≈25÷30 k€ (outside construction)
≈12÷15 k€ (in-house construction)
CGEM Workshop - IHEP - June 13th 2017
G.Giraudo INFN Torino