Strand Burn PS.pdf

PURCHASE SPECIFICATION (PS)

5 KSI STRAND BURNER

U.S AIR FORCE

309TH MMXG

10/20/2021

STRAND BURNER

i

Table of Contents

1 SCOPE

2 REQUIREMENTS

2.1 5000PSI Clover Leaf Single Strand, Strand Burner System

2.2 Remote Valve Rack

2.3 Control Console

2.4 Data Acquisition System

2.5 23 gallon temperature conditioning bath and well assembly

2.6 Standard Nitrogen gas booster and gas storage system

2.7 Spare Test Cell Head

2.8 Heat transfer fluid for conditioning bath

3 INSTALLATION, SHIPPING, AND WARRANTY

3.1 Installation, Calibration, and Training

3.2 Crating and Shipment

3.3 Warranty

3.4 Inspection

3.5 Delivery and Shipping

3.6 Pressure Instability

3.7 Installation Requirements

3.8 Documentation

1 SCOPE

The following establishes the minimum requirements for the purchase of a strand burn tester.

This document provides requirements of the equipment, installation requirements, warranty information, and shipping.

2 REQUIREMENTS

The strand burn tester shall be new (not a prototype) and one of the manufacturer’s standard current production models capable of operations in accordance with the requirements herein.

The machine shall be complete, so that when connected to the utilities identified herein, it can be used for any function for which it is designed and constructed.

2.1 5000 psi Clover Leaf Single Strand, Strand Burner System:

The strand burner system consists of multiple components required for the testing of linear burn rate of strand propellant.

a. Rated for 5000 psi at -65°F to +185°F.

b. Nitrogen gas pressurized to 5000 psi max.

c. Crawford style (MIL-STD-286) pulsed time break wire burn rate method.

d. There should also be one single strand test head and body; test head and body constructed of

SST-316.

e. Test body will have a separate gas inlet and exhaust port.

f. Nitrile O-ring seal used between the test head and body.

g. Electrical feed-thrus constructed of Hastelloy.

h. PT-100, RTD is mounted through the center of the test head for accurate remote monitoring of internal temperature.

2.2 Remote Valve Rack:

This will contain the pressure related components such as valves, surge tanks, regulating valves, and pressure transducers.

a. High pressure retaining metal parts are constructed of SST-316, except the surge tank, insulators, and seals.

b. 9/16” OD coned and threaded heavy wall tubing is constructed of ST-316, rated at 20,000 psi working pressure.

c. Surge tank is constructed of SA372 alloy steel, constructed per ASME Boiler and Pressure

Vessel Code, Section VIII, Division 1.

d. Transducers are used for monitoring system pressures and have an accuracy of ±0.01% F.S.

e. Rack is controlled by 24VDC from the control console.

f. Requires 100 psi filtered shop air.

g. Remote valve rack does not need to be explosion proof or hazard rated.

2.3 Control Console:

This will contain all the controls and instrumentation for pressure control, monitoring, keyed safe and arm fired control.

a. The timing and fire control portion of the console consist of a keyed safe and arm switch, timer, and amp meter.

b. All valves are controlled from the remote console. Console mounted lights indicate open or close position of high pressure valves. Contact switches are mounted on the valves.

c. All cables used for signal transmission are shielded and are up to 45’ to allow console to be mounted away from high pressure portion of system.

d. Supply rack with 24VDC for controls.

e. Differential pressure measurement

2.4 Data Acquisition System:

The system will be designed to allow the operator to acquire, monitor, and reduce the real time data that is generated by the sample firing. The data acquisition system produces raw data that can be used to generate reports and graphs in spreadsheet and/or work processor format.

a. System capable of measure test cell pressure, test cell temperature, burn rate calculations, delta pressure and manually entered notes about each firing such as operator, date, sample number, etc.

b. Computer with Windows 10 Operating System (or the current operating system at time of manufacturing), Microsoft Office, Intel I5 CPU, 8 GB RAM, 500 GB Hard drive, read-write optical drive.

c. 20” flat screen color monitor minimum.

d. All cables, IO boards, and interface boards.

e. Interface connection to the timing and fire control system.

f. Custom Labview data acquisition software.

g. Laser printer and cable.

2.5 23 gallon temperature conditioning bath and well assembly:

a. Operating range of -65°F to +185°F.

b. +/- 1°F full scale accuracy.

c. PID programmable controller with dual LED display with RS 232 communications port.

d. Exterior is 112.4 cm wide x 96.5cm high to counter top x 81.3cm deep. Pumps are an additional

17.8cm high.

e. 23 gallon stainless steel tank.

f. Hinged insulated stainless steel cover with handles.

g. Four 50.8cm diameter dual wheel caster.

h. Two stainless steel circulating column pumps.

i. Operators manual.

j. C of C of factory performance test.

k. 220 VAC/1 PH/60 HX, required 30A time delayed circuit breaker.

l. Well assembly to hold test cell body in the tank, includes black phenolic cover and stainless.

steel trim and support rings.

m. Additional high pressure stainless tubing and fittings for installation.

2.6 Standard Nitrogen gas booster and gas storage system:

a. Shop air driven gas booster producing high pressure gas which is compressed in its own storage tank system.

b. Two stage nitrogen drive gas booster.

c. Shop air filter, regulator, gage, and speed control valve.

d. Automatic start/stop – when nitrogen outlet pressure exceeds 5000 psi the unit will automatically stop and restart when the system drops around 10%.

e. Frame is powder coated carbon steel.

f. Two 1.4 cu ft. high pressure storage bottles constructed of SA372 series alloy steel per ASME

Boiler and Pressure Vessel Code Section VIII, Division 1.

g. Pressure gage, pressure relief valve, on/off valve per tank for maintenance, tubing, fitting, and all related hardware.

h. All high pressure cone and threaded tubing, fitting, and valves are constructed of 316 stainless.

steel rated for 20,000 psi working pressure.

i. 20’ of 9/16” dia. Stainless steel high pressure tubing to connect the gas booster system to the valve rack.

j. Will require 100 psi @ 50 scfm min. filtered shop air supplied by customer.

k. Customer will be responsible for running shop air and nitrogen supply lines to the gas booster.

l. The complete system is 40” W x 18” D x 84” H.

2.7 Spare Test Cell Head:

Multiple test heads are recommended to expedite propellant testing.

a. Triple strand head assembly.

b. All metal parts that are exposed to combustion, except electrical feed thrus are constructed of type 316 stainless steel.

c. Electrical feed-thrus are constructed of Hastelloy.

d. 100 ohm RTD is mounted through the center of the head so internal test cell temperature can be accurately monitored.

2.8 Heat transfer fluid for conditioning bath:

a. Hydrocarbon blend, ultra-low heat transfer fluid.

b. Rated -73°C to +204°C (-100°F to 400°F).

c. 50 gallon drum and MSDS.

3 INSTALLATION, SHIPPING, AND WARRANTY

3.1 Installation, Calibration, and Training:

a. 2 weeks total for 2 people to supervise and assist with installation, working 5 standard 8 hour days per week.

b. Includes calibration, testing, and training with the number of personnel trained limited by the time allowed.

c. Includes mileage, lodging, air fare, and per diem for contractor personnel.

d. Customer assistance will be needed for installation.

e. Customer will provide a written acknowledgement of facility readiness before installation work is scheduled.

3.2 Crating and Shipment:

a. Standard crating materials will be used.

b. Contractor will load goods at contractor facility docks.

3.3 Warranty:

a. Contractor shall warranty the system and options for 13 months from date of shipment

b. Warranty shall be for items defective due to design or manufacture by the contractor.

Commercial of the shelf parts provided by the contractor shall be an item carrying a separate warranty (pumps, etc.) and shall be subject to the warranty conditions and duration of that supplier. When components supplied do not have a warranty from the original supplier they will be warranted by the contractor under the original terms with respect to the higher unit assembly procurement. Contractor obligations under this warranty are limited to furnishing or repairing without charge.

c. Field service work for warranty related issues are not included within the scope of this contract.

d. Service contract rates may be quoted upon request. All warranty work is done at the contractor facility or as otherwise negotiated. Parts can be sent to the job site with the understanding that the customer accepts responsibility for installations or as otherwise negotiated.

e. This warranty does not cover damage due to corrosion, combustion, over pressurization, temperate or overloading the capability of the system.

f. Warranty does not include consumables such as valve seats or stems, O-rings, electrical insulating materials, refrigerant, or calibration.

g. Customer shall inform the contractor during the warranty period of any detected damage or manufacturing defects. The contractor shall retain the right to investigate the cause of damage and physically inspect the system prior to initiating repairs.

3.4 Inspection:

a. The customer will “receive inspect” the equipment as soon as it arrives. The customer must advise the contractor immediately of any damages found by the inspection. The shipping containers must be kept until any claims investigations are completed by the contractor.

3.5 Delivery and Shipping:

a. Shipment for one system is 6-7 months after receipt of contract award and first payment

b. Shipment is F.O.B. from contractor location.

c. Customer is responsible for unloading and storage of good at customers facility

3.6 Pressure Instability:

a. There are pressure instabilities and abnormalities inherent to the precision measure high pressure environment. Consequently, the contractor shall be responsible for visual leaks on mechanical equipment only.

b. Digital display leaks or variances that cannot be traced to bubble check leaks are acceptable provided they are minor (not gross leaks).

c. Pressure measurement is directly affected by thermal changes in the pressure system, the test cell, pressure fluid, and room.

3.7 Installation Requirements:

a. The customer (Hill AFB) shall be responsible for ensuring all installation requirements at the install site are completed as follows:

1. Test Bay

i. 220 VAC, Single Phase, 50 Hz, 30 amp service bath only.

ii. Exhaust line size and locations TBD.

iii. Nitrogen gas supply with regulator and feed line to valve rack or booster, location and size TBD.

iv. Shop Air, 100 psi min <3 micron filter, oil/water removal filter, location TBD.

v. Fume ventilation hood over test cell (highly recommended).

2. Control Bay

i. 115 VAC/Single Phase, 60 Hz, 15 amp service.

3. Gas Booster

i. Shop air 90 psi @ 25 scfm, filtered, 1/2” diameter line to drive gas booster.

ii. Nitrogen gas supply, with regulator and feed line to booster, location and size TBD.

4. Gas Booster Compressor

i. 460V/3ph/60hz/10amp.

ii. Nitrogen gas supply and feed line to booster compressor, location and size TBD.

b. The customer is responsible for unloading and locating equipment, pass through holes between bays, and drilling of holes in walls and floors to mount equipment, locations and sizes TBD. All of these items should be done with contractor supervision. The contractor will supply the anchor hardware.

c. The customer is to provide the contractor with plan and elevation views of the bays that will house the equipment and the approximate location of connections, such as electrical, water, exhaust, etc. From this the contractor will construct a layout drawing of the complete system for customers review. The contractor will also use the drawing to pre-bend the tubing prior to shipping it to the customer. This will save time and allows the contractor technicians to better trouble shoot any problems they may encounter.

d. Customer agrees to provide a written statement that the utilities and facility is on-line and ready for installation of the system prior to the contractor scheduling the installation trip.

e. Customer agrees not to delay contractor personnel from the intended installation schedule. If delays are attributed to an impact by customer such as holidays or plant closures the customer agrees to compensate the contractor for all extended costs to include a return trip if necessary.

3.8 Documentation: All documentation, i.e. operation manuals, maintenance manuals, programming manuals, student training materials, drawings, vendor literature, laminated note cards, metal name and service plates, service bulletins, upgrade bulletins, and all associated charts/graphs, shall be written in the English language and grammatically correct.