Performance Based Work Statement.doc

PERFORMANCE-BASED WORK STATEMENT

FOR

Hush House FIRE SUPPRESSION SYSTEM HALON EFFECTIVENESS study 05 March 2009 Prepared by:

Carla Perkins

642 CBSG / GBEB

Warner Robins Air Logistics Center (WR-ALC)

The marking requirements of DoDD 5230.24 do not apply to this document.

No data/documents incorporated by reference are export controlled.

PERFORMANCE- BASED WORK STATEMENT

HUSH HOUSE FIRE SUPPRESSION SYSTEM

HALON EFFECTIVENESS STUDY

OBJECTIVE: Perform a study that addresses the assessment of the T-10 Hush House Halon fire suppression system in various configurations and develop a final report and recommendations detailing the results of the study. A detailed analysis of the Hush House fire suppression system will provide vital information on the ability to utilize the Hush House without hazardous fire truck stand-bys and to gage the overall performance of the system at less than full capacity.

1.0 DESCRIPTION OF SERVICES:

The Contractor shall perform a study that addresses the assessment of the T-10 Hush House Halon 1301 fire suppression system and its overall performance at less than full capacity. The assessment includes analysis on the performance of the system and ability to suppress fires with less than 8 full Halon bottles, analysis on the performance of the system and ability to suppress fires with Halon bottles at lower pressure levels than authorized, and analysis on the performance of the system and ability to suppress fires with various Hush House doors remaining open during Halon discharge. The study will be considered a success if the tasking requirements listed within this PWS are fully addressed and all data requirements met.

BACKGROUND: In order to test aircraft engines during operating conditions, the Air Force commissioned the development and installation of a number of different types of Jet Engine Noise Suppressors. These Noise Suppressors were required to reduce the noise level of turbine engines to a level that would not interfere with everyday operations of the base or surroundings. The T-10 Noise Suppressor provides a means of testing both the installed and uninstalled aircraft engines which reduce environmental noise levels during an engine test run.

One of the major hazards when running a turbine engine is fire. High hydrocarbon fuel rates, heat, and high airflow can easily produce a catastrophic fire after some initiating event. The fire threat arises when any of a multitude of engine or equipment failures initiates a fire. A single failure may initiate a chain of events leading to fires involving flammable fuels and materials. The damage done by fire is linked to the time between initiation and the time it is controlled. [Hughes-Versar Study]

Recognizing that fires pose a multi-faceted threat, Hush House fire suppression systems must perform functions in the following priority order:

· Enable personnel to safely exit the Hush House

· Minimize the damage to the system under test

· Preserve the Hush House and its support equipment

The T-10 Hush House utilizes a Halon 1301 based fire suppression system designed as a total-flood application. The system contains 8 Halon bottles, each with a total of 340 lbs of Halon 1301. The bottles are then pressurized with nitrogen to a pressure of 360 psi (at 70 degrees F). Hush Houses typically experience problems associated with the fire suppression system or other components (i.e.doors) that can possibly affect the performance of the system. Problems such as low Halon levels or low bottle pressures have not been fully explored and therefore may require an alternate means of fire suppression be on hand during Hush House use. The alternate means, normally a manned fire truck, costs the Air Force in terms of funds and manpower.

2.0 SERVICES SUMMARY

3.0 GOVERNMENT FURNISHED PROPERTY AND SERVICES

The Government shall provide all inventoried Technical Orders and previous fire suppression system studies associated with the design and use of the Hush House fire suppression systems. A Technical Order list as well as a list of the Hush House studies is provided in section 5 (Appendix) of this PWS.

4.0 GENERAL INFORMATION

4.1 Task Requirements

4.1.1 The Contractor shall perform a study that addresses the assessment of the T-10 Hush House Halon 1301 fire suppression system and its overall performance at less than full capacity, and develop a final report and recommendations to be delivered to the Government.

4.1.2 The contractor may have access to a Hush House facility for the purposes of research. If a site-visit(s) is required, the WR-ALC T-10 Hush House shall serve as the site to be surveyed. The Contractor shall notify WR-ALC a minimum of 15 days prior to any proposed site visit and obtain approval from WR-ALC. The Government reserves the right to change the location of the visited site in the event of site unavailability.

4.1.3 Monthly Status Reports: The Contractor shall prepare and submit an informal monthly status report compiling the status of the contract. These reports shall include a status summary of all work accomplished-to-date, all program activities for the period and shall provide a forecast of work to be accomplished during the upcoming month, all work outstanding, and a schedule of all deliverables. The contractor shall identify actions being taken to correct all schedule deficiencies. All changes from previous reports shall be highlighted and explained. The contractor shall report any problems requiring immediate action by the government using the most expeditious means (telecon, e-mail, or letter) and shall document the problem in the monthly report. [CDRL A001, DI-MGMT-80368/T] 4.1.4 Final Report: The Contractor shall prepare and submit a final report on the results of the study. The final report shall include all data, results, and findings concerning the study and shall include at a minimum the information contained in section 4.1.5 (and all subsections) of this PWS. Within the final report, the Contractor shall provide all calculations, computer modeling data, and all other information that details how the results and recommendations were obtained. [CDRL A002, DI-ADMN-80447A].

4.1.5 The Contractor shall analyze the performance and effectiveness of the Halon 1301 fire suppression system within the Hush House and provide a final report that details the results of the study. Within the final report and documentation of this contract, the contractor shall provide at a minimum:

4.1.5.1 Effective Bottle Quantity: The Contractor shall determine the amount of Halon (in terms of the number of full Halon bottles) that is required to completely extinguish any and all fire events (as described in the Hughes-Versar study) that may occur in a T-10 Hush House. The Contractor shall determine the quantity of Halon needed to extinguish each of the fire scenarios mentioned in the Hughes study for both uninstalled and installed aircraft engine testing and for all temperatures in which the Hush House can be operated (10 degree increments). For each fire scenario analyzed, the Contractor shall also determine the time required to extinguish the fire for all effective bottle quantities (i.e. 8 full bottles in 35 seconds, 7.5 full bottles in 41 seconds, etc).

4.1.5.2 Bottle Pressure Performance: The Contractor shall determine the difference in performance between various Halon bottle pressures and determine the potential performance degredation of the fire suppression system if low pressure bottles were utilized. The Contractor shall determine the amount of time required for a complete bottle discharge for all pressures from 360 psi to 200 psi in 20 psi increments (at 70 degrees F). The Contractor shall determine if the fire suppression system is capable of full operation if one or more Halon bottles are low in pressure, and whether the low pressure bottle(s) have an adverse effect on the performance of the system in extinguishing all fire events.

4.1.5.3 Open System Effectiveness: The Contractor shall determine the effectiveness of the fire suppression system against all fire types if one of more Hush House roll-up doors or turning vane doors remain open during system discharge. The Contractor shall analyze the system’s performance if each roll-up door is open, and shall analyze the performance if each set of turning vanes is open. The Contractor shall determine the number of roll-up doors and turning vanes that can remain open before the capability of the fire suppression system becomes compromised.

4.1.6 Essential Services: In accordance with DoDI 3020.37, Continuation of Essential DOD Services During Crisis, this effort is not considered mission critical and will not continue in the event of a crisis.

4.1.7 Inspection of Services: FAR 52.246-4 is applicable

5.0 APPENDICES

5.1 Technical Orders

The Technical Orders listed are not fully inclusive and may not provide an accurate representation of the standard Hush House configuration due to parts obsolescence and replacement, as well as upgrades.

5.2 Reference: (entire document is applicable)

Hughes Associates, Inc., Versar Inc. (1998). Hughes-Versar Study: Overview of Fire Hazard Analysis of United States Air Force Hush Houses.

File Number: FD2060-09-24067

Prepared by: Carla Perkins, 642 CBSG/GBEB