# Presentation: 731823

## Recent Simulator Activity

- Baseline Testing
- Fire testing performed during the first week of May 2000
- Agent testing performed during the third and fourth weeks of May2000
- Results/General simulation :
- The air flow passing through the test section no longer attains the 400°F MPSE criteria
- During past core heating trials, fuel leaked through openings in the lower portions of the core to the test bay floor due to excessively rich conditions in the core volume
- The core heating burner was nozzled back from 6 gph to 2 gph to relieve the fuel leak
- Air flow heating to specific temperature is difficult due to the simplicity of the simulator
- Results/fire testing :
- Used a heat flux transducer in a reference location within the spray fire zone to bench mark fire intensity and behavior; NOTE: this is intended for in-house reference only
- Determined existing fuel nozzle array is insufficient (fuel not atomizing acceptably)
- A fire is occurring outside the annular fire zone within the core volume
- Electrical feeds to both hot plates damaged and require repair
- Results/agent testing :
- Difficulty attaining low temperature agent storage profile
- Agent pressurization insufficient @70°F, 360 psig N2 top off
- Agent pressurization sufficient @70°F, 600 psig N2 top off

- WJ Hughes Technical Center
- Atlantic City International Airport, NJ 08405
- USA

- Contact :
- Douglas Ingerson
- tel : 609-485-4945

## Recent Simulator Activity

- Short Term Actions
- Install process controller for the in-line duct heaters (week of 22May)
- Characterize the new nozzle arrays for spray fire scenario (week of 29May)
- Modify firex to attain colder agent storage temperatures (week of 29May)
- Repair/fire-harden electrical feeds and correct fuel leak problems around the hot plates (2-6June)

- WJ Hughes Technical Center
- Atlantic City International Airport, NJ 08405
- USA

- Contact :
- Douglas Ingerson
- tel : 609-485-4945

## Recent Simulator Activity

- Test Data Plots
- 6 tests are provided for viewing
- simulator settings and calculations for each test are provided on the next slide
- a table deciphering the plot legend text references is provided
- plot break down :
- article test plots 411.21 and 525.12 are shown to illustrate air flow heating ability and control as of now
- article test plots 502.11 and 503.11 are shown to illustrate the differences in fire behavior between conditions of ambient air/fuel and hot air/fuel
- article test plots 518.10 and 518.11 illustrate the generic response of the simulator environment during an agent release
- gas distribution plots 518.10 and 518.11 illustrate the distribution in the simulator
- Most of this information is "gee-whiz"
- The information is primarily the result of learning the simulator behavior/characteristics and bugging it out

- WJ Hughes Technical Center
- Atlantic City International Airport, NJ 08405
- USA

- Contact :
- Douglas Ingerson
- tel : 609-485-4945

## Recent Simulator Activity

- WJ Hughes Technical Center
- Atlantic City International Airport, NJ 08405
- USA

- Contact :
- Douglas Ingerson
- tel : 609-485-4945

## Recent Simulator Activity

- WJ Hughes Technical Center
- Atlantic City International Airport, NJ 08405
- USA

- Contact :
- Douglas Ingerson
- tel : 609-485-4945

## Recent Simulator Activity

- WJ Hughes Technical Center
- Atlantic City International Airport, NJ 08405
- USA

- Contact :
- Douglas Ingerson
- tel : 609-485-4945

- Simulator maximum heating ability @ 84 in2 open inlet

## Recent Simulator Activity

- WJ Hughes Technical Center
- Atlantic City International Airport, NJ 08405
- USA

- Contact :
- Douglas Ingerson
- tel : 609-485-4945

- Simulator air stream heating, via process control (84 in2)

## Recent Simulator Activity

- WJ Hughes Technical Center
- Atlantic City International Airport, NJ 08405
- USA

- Contact :
- Douglas Ingerson
- tel : 609-485-4945

- Fire behavior from spray nozzle array

## Recent Simulator Activity

- WJ Hughes Technical Center
- Atlantic City International Airport, NJ 08405
- USA

- Contact :
- Douglas Ingerson
- tel : 609-485-4945

- Fire behavior from spray nozzle array

## Recent Simulator Activity

- WJ Hughes Technical Center
- Atlantic City International Airport, NJ 08405
- USA

- Contact :
- Douglas Ingerson
- tel : 609-485-4945

- Typical simulator response for agent discharge

## Recent Simulator Activity

- WJ Hughes Technical Center
- Atlantic City International Airport, NJ 08405
- USA

- Contact :
- Douglas Ingerson
- tel : 609-485-4945

- Typical simulator response for agent discharge

## Recent Simulator Activity

- WJ Hughes Technical Center
- Atlantic City International Airport, NJ 08405
- USA

- Contact :
- Douglas Ingerson
- tel : 609-485-4945

- Channel Allocations for the Halonyzer
- Forward Ring
- A  12:00	ch # 11
- B    3:00	ch # 9
- C    6:00	ch # 8
- D    9:00	ch # 4
- Mid Ring
- E    1:30	ch # 1
- F    4:30	ch # 7
- G    7:30	ch # 5
- H  11:30	ch # 2
- Aft Ring
- I    12:00	ch # 10
- J     3:00	ch # 12
- K    6:00	ch # 6
- L    9:00	ch # 3

## Recent Simulator Activity

- WJ Hughes Technical Center
- Atlantic City International Airport, NJ 08405
- USA

- Contact :
- Douglas Ingerson
- tel : 609-485-4945

- Agent discharge,
- HFC-125

## Recent Simulator Activity

- WJ Hughes Technical Center
- Atlantic City International Airport, NJ 08405
- USA

- Contact :
- Douglas Ingerson
- tel : 609-485-4945

- Agent discharge,
- HFC-125

## Recent Simulator Activity

- WJ Hughes Technical Center
- Atlantic City International Airport, NJ 08405
- USA

- Contact :
- Douglas Ingerson
- tel : 609-485-4945

- Comments
- still bugging out systemic difficulties...
- fuel nozzle arrays for the spray fire scenario have been modified and characterized regarding flow/pressure curves; fire test behavior requires evaluation
- air flow heating
- the in-line duct heaters are now controlled with a temperature process controller to provide tighter air flow heating control
- the core is plumbed for 2 burners; only one is currently used, the second can be attached at a later time, if needed
- to rectify agent super-cooling difficulties :
- have spoken with the testing contractor at WPAFB to learn from their experiences
- have additional simple modifications planned for the firex
- Summary/Observations
- comparison of flux plots illustrates difference in fire zone behavior with respect to air temperature (heat sink effects)
- agent releases performed with HFC-125 (simulation protocol); of 5 MPSE phase I attempts, 2 were considered reviewable (agent temp for HFC-125 was -42 and -45°F => representative of Halon 1301 @ -65°F)
- for the current simulator configuration, an agent weight for HFC-125 is somewhere between 3.50 and 3.75 lbm (Halon 1301 predicted to be 100/77 times that mass to achieve an MPSE-acceptable distribution profile)