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Recent Simulator Activity Baseline Testing –Fire testing performed during the first week of May 2000 –Agent testing performed during the third and fourth.

Published byMikayla Iredale Modified over 9 years ago

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Presentation on theme: "Recent Simulator Activity Baseline Testing –Fire testing performed during the first week of May 2000 –Agent testing performed during the third and fourth."— Presentation transcript:

1 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 N 2 top off Agent pressurization sufficient @70°F, 600 psig N 2 top off WJ Hughes Technical Center Atlantic City International Airport, NJ 08405 USA Contact : Douglas Ingerson tel : 609-485-4945

2 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

3 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

4 Recent Simulator Activity WJ Hughes Technical Center Atlantic City International Airport, NJ 08405 USA Contact : Douglas Ingerson tel : 609-485-4945

5 Recent Simulator Activity WJ Hughes Technical Center Atlantic City International Airport, NJ 08405 USA Contact : Douglas Ingerson tel : 609-485-4945

6 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 in 2 open inlet

7 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 in 2)

8 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

9 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

10 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

11 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

12 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 12:00ch # 11 B 3:00ch # 9 C 6:00ch # 8 D 9:00ch # 4 –Mid Ring E 1:30ch # 1 F 4:30ch # 7 G 7:30ch # 5 H 11:30ch # 2 –Aft Ring I 12:00ch # 10 J 3:00ch # 12 K 6:00ch # 6 L 9:00ch # 3

13 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

14 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

15 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)

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