4.5K supercritical 0.22 P 0.4 4.5 - - ≤ ≤ ≤ Sat. LHe Dewar Sat. LHe 0.12 Temperature pressure P1* Temperature – LTTS - - 0.22 P 0.4 9 ≤ ≤ ≤ HTTS 0.3 P 1.8 35 40 P P2# 80 ≤ ≤ – – ≤ * P1 is the pressure drop in LP return of the transfer line (about 5 kPa) # P2 is the pressure drop in the HTTS line as provided in Table 3.34. Infrastructure and Utilities Requirements The major PIP-II cryogenic infrastructure consists of the Warm Compression System (WCS) building, the Cold Box (CB) building and the interconnection between the CB building and the tunnel, housing the Cryogenic Distribution System (CDS). The design of the cryogenic infrastructure will include adequate provisions to minimize transmission of vibration to the PIP-II tunnel in order to prevent excitation of microphonics in the SC cavities. The major requirements to the WCS building are: High x with a 25 metric ton EOT crane. bay area: 60’ 200’ (Floor) Electrical power: 3 phase, 4.16 kVAC, 60 Hz with minimum power requirement of about 3.5 MW; 3 phase, 480 VAC, 60 Hz with minimum power requirement of about 200 kW for auxiliary equipment; 1 phase, 120 VAC, 60 Hz incidental requirements (20 kW). Class 2 (AC power from UPS) for operating the control panels. Cooling water: About 1500 gpm with a supply temperature of about 85 95 oF and allowable – rise in temperature of about 18 oF. Ventilation blower: 300 kW approx. Instrument air: 500 gpm approx. The major requirements to the CB building are: High bay area: x (Floor) with a 15 metric ton EOT crane and a side bay area. 50’ 125’ Electrical power: 3 phase, 480 VAC, 60 Hz with minimum power requirement of about 100 kW for auxiliary equipment; 1 phase, 120 VAC, 60 Hz incidental requirements (30 kW). Class 2 (AC power from UPS) for operating the control panels. Cooling water: About 200 gpm with a supply temperature of about 50 60 oF and allowable – rise in temperature of about 9 oF. Instrument air: 500 gpm approx.
4.5K supercritical 0.22 ≤ P ≤ 0.4 ≤ 4.5 - - LHe 0.12 Sat. Temperature LHe Dewar pressure – P1* Sat. Temperature LTTS - - 0.22 ≤ P ≤ 0.4 ≤ 9 HTTS 0.3 ≤ P ≤ 1.8 35 – 40 P – P2# ≤ 80 * P1 is the pressure drop in LP return of the transfer line (about 5 kPa) # P2 is the pressure drop in the HTTS line as provided in Table 3.34. Infrastructure and Utilities Requirements The major PIP-II cryogenic infrastructure consists of the Warm Compression System (WCS) building, the Cold Box (CB) building and the interconnection between the CB building and the tunnel, housing the Cryogenic Distribution System (CDS). The design of the cryogenic infrastructure will include adequate provisions to minimize transmission of vibration to the PIP-II tunnel in order to prevent excitation of microphonics in the SC cavities. The major requirements to the WCS building are: High bay area: 60’ x 200’ (Floor) with a 25 metric ton EOT crane. Electrical power: 3 phase, 4.16 kVAC, 60 Hz with minimum power requirement of about 3.5 MW; 3 phase, 480 VAC, 60 Hz with minimum power requirement of about 200 kW for auxiliary equipment; 1 phase, 120 VAC, 60 Hz incidental requirements (20 kW). Class 2 (AC power from UPS) for operating the control panels. Cooling water: About 1500 gpm with a supply temperature of about 85 – 95 oF and allowable rise in temperature of about 18 oF. Ventilation blower: 300 kW approx. Instrument air: 500 gpm approx. The major requirements to the CB building are: High bay area: 50’ x 125’ (Floor) with a 15 metric ton EOT crane and a side bay area. Electrical power: 3 phase, 480 VAC, 60 Hz with minimum power requirement of about 100 kW for auxiliary equipment; 1 phase, 120 VAC, 60 Hz incidental requirements (30 kW). Class 2 (AC power from UPS) for operating the control panels. Cooling water: About 200 gpm with a supply temperature of about 50 – 60 oF and allowable rise in temperature of about 9 oF. Instrument air: 500 gpm approx.