Fuel Building HVAC Flashcards
Unit 3 is at 100% power with all systems in their normal lineup.
RU-31, Fuel Pool Area Monitor, has a HIGH alarm.
An RCS leak causes a reactor trip, SIAS, and CIAS.
Fuel Building Essential AFU HFB-J01 is ___(1)___. HFA-J01 is aligned to ___(2)___.
A. (1) running; (2) the Fuel Building
B. (1) running; (2) the Aux Building
C. (1) not running; (2) the Fuel Building
D. (1) not running; (2) the Aux Building
B
Of the fuel building exhaust and supply units, which has the higher capacity and why?
Exhaust has the higher capacity to maintain a negative pressure on the fuel building.
What is the location of the fuel building AHUs?
Aux building roof near the elevator.
What is the location of the fuel building normal exhaust units?
Fuel Building roof.
Describe the fuel building ventilation isolation damper arrangement.
There are 8 dampers total, 4 for the supply and 4 for exhaust isolation. They are arranged in two sets of two dampers in series on both supply and exhaust sides of the ventilation, and each line has one ‘A’ train valve and one ‘B’ train valve for redundancy.
What is the location of the Fuel Building essential AFUs?
100’ of the Fuel Building.
Where do the Fuel Building AFUs take suction?
From either the Fuel Building or the of the Aux Building.
What tanks are vented to the Fuel Building HVAC?
RWT and HUT are both vented to HF system.
What occurs when exhaust plenum temperature decreases to 65F?
The AHU heaters will turn on to heat the Fuel Building.
What occurs on a low flow in the HF system?
Heaters will be turned off to protect from overheating
Fuel Building Normal Exhaust AHUs are powered from which of the following? A. NHN-M04 B. PHA-M33 C. NGN-L04 D. PGA-L31
A
Unit 3 is at 100% power with all systems in a normal lineup.
‘B’ train FBEVAS is actuated from B05.
___(1)___ Fuel Building Normal Supply and Exhaust isolation dampers are closed, and the Fuel Building Normal Supply and Exhaust fans are ___(2)___.
A. (1) ONLY ‘B’ Train; (2) running
B. (1) ONLY ‘B’ Train; (2) not running
C. (1) BOTH ‘A’ & ‘B’ Train; (2) running
D. (1) BOTH ‘A’ & ‘B’ Train; (2) not running
A
What is the power supply to Fuel Building Essential Air Handling Unit HFA-J01? A. PGA-L31 B. NGN-M04 C. PHA-M37 D. NHN-M04
C
Which of the following is vented to the Fuel Building Exhaust header? A. Recycle Monitor Tanks B. CVCS Hold-up Tank C. Liquid Radwaste TDS Tanks D. Reactor Makeup Water Tank
B
Complete the following statement concerning Fuel Building Normal HVAC:
A greater or equal number of ___(1)___ fans than ___(2)___ fans must be running to maintain the Fuel Building at a ___(3)___ pressure relative to atmosphere.
A. (1) supply; (2) exhaust; (3) positive
B. (1) supply; (2) exhaust; (3) negative
C. (1) exhaust; (2) supply; (3) positive
D. (1) exhaust; (2) supply; (3) negative
D