NASA Request for Information - HPA System Revised 1.29.26.docx
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- NASA Request for Information (RFI) – High Purity Air (HPA) System for A-1 Rocket Test Stand
- Solicitation number
- 80SSC026K0003
About this file
This is a NASA Request for Information (RFI) solicitation for the design and turnkey installation of a High Purity Air (HPA) Compressed Air System at NASA Stennis Space Center's A-1 Rocket Test Stand. The system must support daily normal operations and rocket engine drying, with installation on the east side of the ATCC (A Complex Test Control Center) and air tie-ins within 100 feet of the proposed compressor site. The system must deliver pressures up to 3000 psig, with flow rates of up to 300 SCFM for standard operations and a minimum of 1000 SCFM after drying for rocket engine drying cycles occurring 4-6 times annually for 10-12 hours per cycle. High purity air requirements include oxygen levels of 19.5-23.5%, water content not exceeding the equivalent of -53.9°C dew point, volatile hydrocarbons limited to 15 maximum ppm, and particulate specifications of 25 particles for 30-100 microns and zero particles greater than 100 microns.
The RFI requests industry input on system configuration including fully self-contained compressor units (Bauer, Sauer, or equivalent) with VFD capability, dryers capable of maintaining -53.9°C dew point continuously, and controls utilizing Allen-Bradley (preferred) or Siemens systems. The electrical and mechanical scope encompasses MCCs, transformers, breaker panels, all piping, valves, and pipe tie-ins. NASA is seeking industry responses addressing nine specific questions regarding compressor operation effects on dew point, startup time to achieve -55°C dew point, dryer heating requirements, series dryer configuration recommendations, budgetary cost estimates for both the complete turnkey system and hardware-only components, recommended project timeline, and risk considerations related to system reliability and redundancy.
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NASA Request for Information (RFI) – High Purity Air (HPA) System for A-1 Rocket Test Stand Project Overview NASA Stennis Space Center seeks industry input for the design and turnkey installation of a High Purity Air (HPA) Compressed Air System to support:
1. Daily Normal Operations
2. Rocket Engine Drying The system will be installed on the east side of ATCC (A Complex Test Control Center) highlighted in red, with air tie-ins located within 100 ft of the proposed compressor site.
Performance Requirements:
· Pressure: Up to 3000 psig
· Flow Rates:
· Standard Operations: Up to 300 SCFM
· Rocket Engine Drying: Mimimum1000 SCFM delivered after dryer(s) for 10–12 hours, 4–6 times/year
· Purity:
| HIGH PURITY AIR (HPA) |
| REQUIREMENTS |
| O2 |
| 19.5-23.5% |
| H2O (max ppm) |
| (-53.9°C Dew Point) |
| Volatile Hydrocarbons**(max ppm) |
| 15 |
| Particulate (gas) |
| 30µ-100µ: 25; >100µ: 0 |
| Condensable Hydrocarbons |
| 0.25 mgs (max.) |
System Configuration
· Compressors:
· Fully self-contained compressor units (e.g., Bauer, Sauer, or equivalent).
· VFD capability
· A compressor for normal operations; additional units for engine drying
· Dryers:
· Must maintain -53.9°C dew point continuously
· Dryer recommendation manufactures that meet requirements
· Indicate if dryers are heated
· Address startup time to achieve purity
· Recommendations for series dryer configuration to ensure dryness
· Controls:
· Allen-Bradley preferred, Siemens acceptable
· Electrical Scope:
· MCCs, transformers, breaker panels, etc..
· Mechanical Scope:
· All piping, valves, pipe tie-ins, etc.
Questions for Industry
1. Does compressor start/stop affect dew point spec?
2. Startup time required to achieve -55°C dew point?
3. Dryer heating requirements?
4. Recommendations for series dryer installation?
5. Cost estimate for design/build turnkey system.
6. Cost estimate for compressors/filters/dryer system hardware only.
7. Recommended project timeline.
8. Any additional considerations for reliability and redundancy?
9. Risks and other considerations associated with this system.
Additional Notes
· Engine drying may occur 4–6 times per year
· Include all electrical and mechanical integration in proposal
· Provide budgetary cost estimate, schedule, and risk considerations Submission Please provide responses, cost estimates, and recommendations for the A1 HPA System.
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