Attachment II - Specs.pdf
PDF 92 KB Posted
- Solicitation number
- 36C25026Q0556
About this file
This document is a heat exchanger specification sheet detailing the design and performance parameters of a shell-and-tube heat exchanger unit.
The heat exchanger is designed to transfer 1,049,499.92 Btu/h between two water streams. The shell side processes 106.26 GPM of water flowing from 140°F inlet to 120°F outlet, while the tube side handles 60 GPM of water flowing from 60°F inlet to 95°F outlet. The unit operates at 0 PSIG with minimal pressure drops (1.84 PSIG calculated on shell side, 0.44 PSIG on tube side, both within 6.5 PSIG allowance). The overall heat transfer coefficient in service conditions is 259.5 Btu/hr,ft²,°F with a surface area of 81.1 ft² and 1.32% excess surface area.
The construction specifications include 316 stainless steel tubing (3/4 inch diameter, 20 BWG gauge, 48-inch length in 15/16 triangular pitch) with 104 tubes configured in 4 passes on the tube side and 1 pass on the shell side. The shell is fabricated from steel with a cast SS316 head and SS316 tubesheet. Design pressures are 150 PSIG for the shell side and 125 PSIG for the tube side, both rated for 375°F design temperature. Connections are 3.0 inch NPT on the shell side and 4.0 inch NPT on the tube side. The unit is approved under ASME Section VIII Division 1 with a U stamp and features roller-expanded tube-to-tubesheet joints with composite fiber gaskets.
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Other files
| File | Type | Posted |
|---|---|---|
| Attachment I - SOW.pdf | ||
| 36C25026Q0556 0002.pdf | ||
| 36C25026Q0556 0001.pdf | ||
| RFQ 36C25026Q0556.pdf | ||
| 36C25026Q0556.docx | DOCX document |
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Text version
Shell Side Tube Side Fluid Name Water Water Total Flow 106.26 GPM 60 GPM Inlet Temperature 140.0 °F 60.0 °F Outlet Temperature 120.0 °F 95.0 °F Operating Pressure 0 PSIG 0 PSIG Pressure Drop, Allow./Calc 6.5 / 1.84 PSIG 6.5 / 0.44 PSIG
Velocity 5.62 ft/s 2.04 ft/s Density 61.51 lb/ft3 62.16 lb/ft3 Viscosity, Mean 0.53 cp 0.95 cp Viscosity, Wall 0.54 cp 0.91 cp Specific Heat 1.0 Btu/lbm,°F 1.0 Btu/lbm,°F Thermal Conductivity 0.37 Btu/ft,h,°F 0.35 Btu/ft,h,°F Specified Fouling Factor 0.000250 hr,ft2,°F/Btu 0.000250 hr,ft2,°F/Btu
Total Heat Exchanged Btu/h 1,049,499.92
LMTD °F 52.14
Overall Heat Transfer Coefficient, Clean/Dirty Btu/hr,ft2,°F 305.1/262.93 Overall Heat Transfer Coefficient, Service Btu/hr,ft2,°F 259.5 Surface Area ft2 81.1 Excess Surface Area % 1.32
Construction
Shell Side Tube Side Number of Passes 1 4 Design Pressure 150PSI 125PSIG Design Temperature 375(°F) 375(°F)
Inlet Connection (Location) Type 3.0 in NPT 4.0 in NPT Outlet Connection (Location) Type 3.0 in NPT 4.0 in NPT
Tube Material / Diameter 316 S/S / 3/4 in No. Tubes / Gauge / Length / Pitch 104 / 20 BWG / 48 / 15/16 TRI Shell Material STEEL Head Type/Material CAST SS316 Tubesheet Material 316 S/S Baffle Material STEEL Gasket Material COMP.FIBER Tube to Tubesheet Joint Roller Expanded Approvals ASME Sect VIII Div 1 w/U stamp.
File details come from the government source that posted it. Updated .