80KSC026Recharger - SOW.pdf

Statement of Work (SOW) DRAFT Two High Pressure, High Flow Nitrogen Rechargers

1.0 Background

NASA’s rechargers are mobile nitrogen pumping units utilized throughout Kennedy Space Center (KSC) and Cape Canaveral Space Force Station (CCSFS). A recharger is a piece of mobile industrial equipment that converts cryogenic liquid nitrogen (LN2) to high pressure gaseous nitrogen (GN2). Rechargers will be used to satisfy NASA and commercial customer contingency requirements by providing high pressure, high flow gaseous nitrogen (GN2) during a loss of flow from the primary GN2 production facility.

2.0 Period of Performance:

Delivery date to be proposed by the contractor and not to exceed March 31, 2028.

3.0 Applicable Documents

23 CFR 658 Federal Highway Administration, DOT – Truck Size and Weight

49 CFR 106-180 Department of Transportation (DOT) – Subtitle B- Other regulations relating to transportation

49 CFR 393 DOT – Parts and accessories necessary for safe operation

49 CFR 566 National highway traffic safety administration (NHTSA), DOT – Manufacturer identification

49 CFR 567 NHTSA, DOT - Certification

49 CFR 571 NHTSA, DOT – Federal Motor Vehicle Safety Standards

TT-S-230 Sealing compound, synthetic rubber base, single component, chemically curing (for caulking and glazing in building construction)

AMS-STD-595 Color Number 17925 (This replaces FED-STD-595)

ASME B31.3 Chemical Plant and Petroleum Refinery Piping

ASME Boiler and Pressure Vessel Code

Section IX, Welding and Brazing Qualifications

Section VIII, Rules for Construction of Pressure Vessels

CGA 341 Standard for insulated cargo tank specifications for nonflammable cryogenic liquids

CGA S-1.2 Pressure relief decide standards – part 2 – cargo and portable tanks for compressed gases

CGA V-6 Standard Bulk Refrigerated Liquid Transfer Connections

CGA 4.1 Cleaning equipment for oxygen service

NASA-STD-5008B Protective coating of carbon steel, stainless steel, and aluminum on launch structures, facilities, and ground support equipment

4.0 Government Furnished Material

Liquid Nitrogen used for testing performed at KSC.

5.0 Project Work Requirements

5.1 The Nitrogen Recharge shall meet the following requirements. The Recharger shall:

a. Be a Direct-Fire Recharger.

b. Meet or exceed all applicable 49 CFR requirements for mobile equipment road worthiness.

c. Meet or exceed ASME B31.3 for Severe cyclic service:

i. Provide calculations and documentation for the system to meet pressure vessel requirements on the following:

ii. Provide relief valve and piping size calculations downstream from the centrifugal pump.

d. Be cleaned in accordance with CGA G-4.1

e. Have Connection fittings that meet the following:

i. A discharge connection to be compatible with 3-inch hammer fitting. The discharge connection shall have a tee with a 9/16” terminal with an installed hose reel.

ii. Have an LN2 fill connection shall be 3-inch CGA V-6. Fittings shall be interchangeable National pipe thread (NPT).

iii. The tubing shall be Parker Autoclave or equivalent. Equivalency will be determined during proposal phase and this statement of work will be updated to specify approved alternate.

iv. The Piping shall be flange fitting and fittings to be flanged.

f. Have a truck mounted chassis (preferred) with ground controls. If a truck mounted chassis cannot be provided to meet all other requirements, then a tractor shall be included in the proposal. The total footprint of system, including tractor, shall not exceed 60 feet long, 9 feet wide, and a smaller footprint is preferred.

g. Meet the following System Requirements.

i. Designed for outdoor operation at ambient temperatures from 30°F to 110°F.

ii. Shall not have unloader style cold ends.

iii. Discharge gas temperature to be greater than 40°F and no more than 100°F.

iv. Deliver 12,000 scfm (720,000 scfh) flow at 10,000 psig minimum.

h. Have a controls system that shall include the following:

i. Instrumentation to determine out of bound temperatures.

ii. Instrumentation to determine out of bound pressures; including any conditions that could lead to cavitation and prevent cavitation prior to incurring damage.

iii. Piping and instrumentation diagram (P&ID) identifying all piping, valves, instruments, relief devices, controls and equipment tags.

i. Have an on board LN2 dewar that shall meet the following:

i. A capacity of greater than 2,000 gallons.

ii. ASME BPVC Section VIII manufactured and provide all applicable documentation.

iii. Be capable of receiving pressure offloaded LN2 from tanker, at 40-50 psig read from the external the tanker while the recharger is running at max flow.

iv. The evaporation rate shall be <1% in 24 hours rated by LN2.

5.2 The Government requires the Right to Repair. This shall include the following:

a. If total programmable controls (PLC) are included, access shall be given to the

Government to update, change or adapt without restriction.

b. The Government can change hardware, as required, without restriction.

5.3 The Protective Coating on the recharger shall be done per NASA-STD-5008 or equivalent.

If NASA-STD-5008 cannot be met, the coating method must be proposed and incorporated into the statement of work as an appendix. The applicable sections of NASA-STD-5008 are listed below.

a. All carbon steel, aluminum, and stainless-steel surfaces shall be coated except for the following: wheels, valves, hardware (made from non-corrosive materials), or components provided by a manufacturer that already have corrosion protection.

i. Any parts of the recharger that are made of carbon steel shall be coated with a three-coat system. First coat is an inorganic zinc primer, second coat is an inhibited polyamide epoxy mid-coat, and the topcoat is aliphatic polyurethane. topcoat. Approved products are listed in Appendix B of NASA-

STD-5008B.

ii. Any parts of the recharger that are made of Aluminum and/or Stainless Steel surfaces, with the exceptions listed in 5.3.a, shall be coated with a two-coat system. First coat is an inhibited polyamide epoxy primer, and the second coat is an aliphatic polyurethane topcoat. Approved products for use as primers for aluminum and stainless steels are listed in Appendix B of NASA-STD- 5008B and annotated with an asterisk (*).

b. If coating of an area or component is difficult or impossible after installation, that area or component shall be coated prior to installation.

c. All faying surfaces with an opening less than ¼” shall be sealed with polysulfide sealant.

d. The contractor shall follow coating manufacturer’s recommendations for surface preparation, application, environmental controls, and curing.

e. Inorganic zinc primer shall have a dried film thickness (DFT) of 2.5 to 4.0 mils.

Thicker build-up may occur in areas limited to one square foot or less. The proper DFT shall be obtained in a single application, which may consist of multiple passes provided the coating is still wet. DFT of the topcoat shall be sufficient to ensure uniform coverage and color. Epoxy coatings shall be applied to coating manufacturers’ recommendations.

f. All coating finishes shall be free of runs, drips, ridges, waves, laps, brush marks, sags, blisters, bubbles, mud cracking, variations in color, gloss or texture, missed areas, excessive or insufficient film build-up, foreign contaminants, or dry over spray.

g. Topcoats shall be colored in accordance with AMS-STD-595 White, No. 17925.

5.4 Spare Parts. The Contractor shall provide the following Spare Parts along with the recharger:

a. Two additional cold ends.

b. Two additional relief valves for each relief valve on the system.

5.5 Deliverables.

5.5.1 Deliverables at time of delivery. The Contractor shall provide the following deliverables at the time of delivery:

a. Spare part recommendation list.

b. System schematics and configuration drawing. P&ID etched plate permanently affixed near the operator console and connection points, at the time of delivery. Code for PLC, if PLCs are included.

c. Warranty information.

d. ASME form U-1 for the tank.

e. QC documentation for coating systems including surface preparation and dry film thickness measurements.

f. Recorded tare weight.

g. Certification package to include the following:

i. DOT Certification must include transport loading calculations,

ii. Design calculation documentation package to satisfy B31.3 requirements,

iii. RV design calculations.

iv. Flexibility calculations.

v. Pulsation and vibration analysis.

5.5.2 Other Deliverables. The contractor shall provide the following deliverables as specified:

a. Project schedule to be provided within 30 days of award.

b. Monthly progress report provided each 30 days after the project schedule.

c. Operations and maintenance manual, no later than 30 days prior to delivery.

d. Verification report documenting the evaporation rate of the dewar, over a 24-hour period, is <1% rated by LN2 to be provided within 7 days of the evaporation test.

5.5.3 Post Delivery of equipment, the following shall be accomplished within one month of request, not to exceed 12 months from delivery:

a. The contractor shall supply delivery and training per the following:

i. Provide training to certify KSC technicians on operating and maintaining the proposed recharger.

ii. At minimum, one qualified seller’s operator, knowledgeable of recharger operations, shall be present to provide hands-on training for up to one week during the pipeline test at KSC.

iii. Recharger shall be delivered to building M6-0744 (BOSS), Kennedy Space Center, Florida.

b. The Recharger shall be tested and inspected to the following criteria and must pass. The Government reserves the right to witness all testing listed in this section.

i. Perform a two-hour high flow pipeline test performed at KSC with KSC operators, with the LN2 provided by the Government. Deviations to be approved by the Government.

a. Test duration begins once high flow is achieved.

b. Test pressure between 6,000 - 6,500 psig.

c. Test flowrate of 9500 scfm +/- 400scfm.

ii. Fill a 10,000-psig Compressed Gas Trailer to 10,000-psig at KSC.