Design Solution for iRPC Cooling System Upgrade
Detailing the retrofit of the iRPC Cooling System with cost-effective components prioritizing reliability and efficiency. The upgrade includes components like chiller, manifold connections, distributor valves, chambers solutions, and air compression mechanisms. Various fittings, hoses, and seals are used to ensure seamless functionality and optimal performance. The design choices focus on enhancing cooling efficiency within the given budget constraints.
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iRPC cooling 904 Ian 14 oct 2023
iRPC Cooling 904 30-Sep-23 Ian Crotty CERN stores have been given priority in the choices made, if cheap wrt exterior sources Designation Description Total cost Comments Chiller to distributor Manifold 1/2 inhch union supplied with Unichill 0 Brass 3/8inch to int 13mm hose 15.6 Reinforced PVC hose 13x19mm 9.6 3/8 to 14mm Cu pipe 0 Cu 14mm pipe 50mm Hose clamp 19mm 8RS 14mm to 1/2 inch Sagana 38 reduction 1/2M to 3/8inch F 2.6 Female to F 1/2 inch 9.2 In the cataloge CERN there are alternatives to the barb to 1/2 fittindgs Short across the chiller to ensure flow Possible up grades Air bleed valve on the Manifolds. Weld modification Possible up grades
Distributor to 3 way Valve Nuts Ferrules dia 14mm Sagana front Ferrules dia 14mm Sagana rear Cu.Pipe dia 14mm 80.4 33.6 19.2 29 Union 14mm pipe to 3WV Sagana 1/2 inch to 14mm Cu seal 190 7.8 OR Legris 1/2 inch to 16m Reduction 16 to 14mm Cu seal 76 105 7.8 3WV Distribution from Manifold to chambers 120Aliexpress 720Sagana
From 3WV to chambers 2 solutions PU hose dia 8mm 1/2 inch to 1/4inch bush Legris 1/4 inch to 8mm Internal ferrules 6x8mm PU 8x6mm hose O Ring seal to chamber 8mm 11.4 28.8 17.4 190 20replaces rear ferrule Sagana pushlok Hose 1/4 inch 1/4 inch hose Swagelok 8mm to 1/4 inch barb Swagelok 1/4inch to 1/4 inch barb 1/4 inch to 1/2 inch bush 300 200 200 22.8
Drain to 2P separator Dia 10mm Supports for dia 90mm Legris 1/2inch to 12mm Legris reduction 12 to 10mm PU hose dia 8x10mm Legris 1/4inch to 12mm ? Internal ferrules dia 10x8mm Legris 1/2inch to 12mm Legris reduction 12 to 10mm 5.1 39 Connection to the Manifolds 6.6 Connection to the Manifolds 72.5 8.6 39 Connection to the 2 Phase seperator. Assuming welded 1/2 inch spigots 6.6 Connection to the 2 Phase seperator. Assuming welded 1/2 inch spigots OR use iso vac fittings Legris 1/2inch to 12mm Legris reduction 12 to 10mm Legris barb fitting to 10mm 39 6.6 15 Reinforced hose 13mm x 19mm Reinforced hose 10mm x 16mm 19.2 21 OR Iso 30mm to 10mm cylinder OR Iso 40mm dia vac 16NW 28mm cylinder Iso 30mm dia vac 16NW 20mm cylinder 16.5 Iso 40mm to 28mm cylindrical 67.5 Iso 40mm to 20mm cylindrical OR 400 Vac fittings for 2 Phase separator 20 Vac fittings for 2 Phase separator OR Iso 40mm dia vac 16NW 13mm hose Iso 40mm dia to 25NW Clamps Inner seal ring 30mm Inner seal ring 40mm "O" rings "O" rings 0
Compressed air to chambers Distributor 1/4inch from P5 6mm to 1/4 inch Pressure Regulator from previous installation 0
Conclusions The majority (90%) of the components has been established. Alternatives have been proposed in many cases to try to reduce costs. A major element is the 3 way valves. We need cheap alternatives to test at 30-60 bar. 5 to 10 price ratio for 10 pieces. No total cost is given as there are alternatives but very approx. 0.5-1kchf, requires another iteration. To be confirmed Phase separator for the drain has been sourced at CERN, may need modification in P5 to reduce unions cost. Giving auto redrain to chiller. Interlock has not been established but we checked for the flow elements in 904. Rack and front panel will be needed.
