ML18022A189

Updated Final Safety Analysis Report (Ufsar), Amendment 27, 4.8 Table - Residual Heat Removal

ML18022A189
Person / Time
Site:	Browns Ferry
Issue date:	10/05/2017
From:	Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation
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BFN-25 TABLE 4.8-1 RESIDUAL HEAT REMOVAL SYSTEM EQUIPMENT DESIGN DATA RHRS PUMPS Number Installed per Unit - 4 Design Temperature - 350°F Capacity/Pump - 50% (LPCI)

Design pressure

- 450 psig Shutoff Head

- 780 ft Design Conditions/Pump 0 psid*

Discharge Flow (gpm) 20,000 (2 in one loop) 10,800 (1 in one loop) Units 1, 2, 3 Rated Pump Capacity 10,000 gpm at 560 ft Total Dynamic Head NPSH Required at 90°F (ft) 30 Operating Conditions/Pump Discharge Flow (gpm) 0-12,000 Discharge Head (ft) 780-420 Differential Pressure (psid) 295-0 NPSH Required at 90°F (ft) 30-34 RHRS HEAT EXCHANGERS Number Installed per Unit - 4 Shell Side Fluid - Reactor Water or Pressure Suppression Pool Water Tube Side Fluid - RHR Service Water (River Water)

Shell and Tube Side Design Pressure - 450 psig and Design Temperature 40-350°F Pressure Drop Design Conditions - shell side 10 psi

- tube side 6 psi Suppression Pool Cooling Analysis (Pre-uprated)

Shell Side Flow (gpm) 6500 Inlet Temperature Shell Side 177 Heat Exchanger Duty (Btu/hr) 68.8 x 106 Tube Side Flow (gpm) 4500 Inlet Temperature Tube Side (°F) 95°F Suppression Pool Cooling Analysis (Uprated) - ANS/ANSI 5.1 (with 2 uncertainty)

Shell Side Flow (gpm) 6500 Inlet Temperature Shell Side (°F) 187.3 (Unit 1), 177 (Units 2 and 3)

Heat Exchanger Duty (Btu/hr) 74.1 x 106 (Unit 1), 68.2 X 106 (Units 2 and 3)

Tube Side Flow (gpm) 4000 Inlet Temperature Tube Side (°F) 95°F (Unit 1), 92°F** (Units 2 and 3)

Heat Exchanger K-factor 223 BTU/sec-°F

• psid - pounds per square inch difference between reactor vessel and drywell.

• • Additional analyses were performed at higher river water temperatures with reactor thermal power limitations to ensure peak suppression pool temperatures do not exceed 177°F.