Attachment 2 Compliance Matrix.xlsx
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- Solicitation number
- 80GRC026R0011
About this file
This is a Compliance Matrix designed to track contractor compliance with requirements outlined in the Statement of Work (SOW) for Phase 1 Design and subsequent construction phases of a custom thermal vacuum chamber system for NASA Glenn Research Center.
The project requires the contractor to design and manufacture one rectangular stainless steel vacuum chamber (9' tall x 9' wide x 18' long), one thermal shroud system, and one Thermal Conditioning Unit (TCU). The vacuum chamber must achieve 5 x 10^-7 Torr capability with a leak rate of 5 x 10^-8 STD ATM CC/SEC or better, feature modular 6-foot sections with maximum 10-ton section weights, all internal full fusion vacuum welds, #4 machine polish on internal surfaces, and accommodate temperatures from 77 Kelvin to 425 Kelvin. The chamber requires four 27.5" flanges for cryopumps, turbo pump flanging, roughing pump flanges, at least twelve additional ANSI 20" high vacuum flanges, and a swinging personnel door. The thermal shroud must be constructed of 1100 aluminum or stainless steel, provide minimum 6.5' x 6.5' x 15' clear internal space, reject 10 kW heat load, accommodate fully flooded liquid nitrogen, and include perforated multi-layer insulation with interior high emissivity paint. The TCU must be commercial off-the-shelf, controllable from 90K to 425K with ±2K thermal uniformity, provide at least 15 kW refrigeration and 10 kW heating capacity using nitrogen as the working fluid, and include MODBUS TCP/IP external communication capability. All work must comply with NASA Standard 8719.17 Revision D and ASME codes. The contractor must submit shop drawings, calculations, and technical specifications at 50% Preliminary Design and 90% Critical Design review levels prior to 100% Final Design issuance, with all final deliverables marked "ISSUED FOR CONSTRUCTION." All work must be completed within 1,380 calendar days from contract award, including onsite installation by January 2, 2030, acceptance testing, and final closeout. The contractor must provide a 3-year warranty from final acceptance, in-person training for eight operating and maintenance staff members, monthly progress reports with updated Gantt charts, daily onsite inspection reports, and as-built drawings reflecting all modifications.
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Attachment 2 Compliance Matrix
| Compliance Matrix | |||||
| Requirement | Location In SOW | Contractor Response | Location of Response | Compliance? (Yes/No/Partially) | Explanation (If No Or Partially) |
| Comply with the scope of Phase 1 Design | 2.1 | ||||
| Preliminary technical requirements review with various NASA stakeholders to ensure complete understanding of scope and requirements prior to design. | 2.1.1 | ||||
| Review of existing drawings, specifications and other information pertaining to the APSL. | 2.1.2 | ||||
| Provide design development calculations for all features of work. These calculations shall be stamped by those professionals responsible for the design, be checked and initialed off by the Contractor's quality control, and be consistent with the Design Report format (see below). The calculations shall be updated and submitted as the design progresses. | 2.1.3 | ||||
| Preparation of shop design drawings and technical specifications that meet requirements. These drawings and specifications shall be stamped by those professionals responsible for the design, checked for quality and initialed off by the Contractor's quality control. | 2.1.4 | ||||
| Coordinate and conduct design reviews with the NASA Project Team. | 2.1.5 | ||||
| Provide the products required by section PROJECT DELIVERABLES. | 2.1.6 | ||||
| Change can and will occur on any project. Changes to the approved plans or specifications include revisions, deletions, additions, and substitutions to the work prescribed on the approved plans or specifications. Therefore, the change proposal process, in conjunction with subject RFIs established between the Government and the Contractor, shall support the negotiations and contract modifications required to adjust costs and/or schedules for the project. RFIs resulting in requested change proposals sponsored by either the Government or the Contractor (and their team) shall include the following information as applicable: |
A reason for the sponsored change.
Calculations, product cut-sheets, cost estimates, technical justifications, and other back-up information necessary to demonstrate the changes being submitted.
The designer of record (DOR) related to the change shall professionally stamp and sign all documents presented. Note that all drawings must be stamped and signed; all sketches must be signed.
| Cross-reference and label all supplied documents to the subject RFI. | 2.3.3 | |
| The Contractor shall prepare a design schedule (use of Microsoft® Project is preferred) for this project. The schedule shall include a graphic schedule (Gantt chart) indicating sequence of events and interrelationships using the critical path method (CPM). This schedule shall be of sufficient detail to demonstrate the Contractor’s understanding of critical tasks and the sequencing necessary to execute the project. The schedule shall be updated monthly and submitted to the Government reflecting work progress (planned and/or performed) during the execution of this project. | 2.4 | |
| The Contractor shall schedule with NASA a technical requirements review meeting prior to the start of the design phase. This meeting shall include key personnel, technical partners and subContractors. This preliminary review shall be scheduled to occur within twenty-one (21) working days of the Award. The Contractor shall record minutes from this meeting and present NASA with record of those minutes within five (5) working days of the conclusion of this meeting. Forward actions and assignees shall be clearly noted in these minutes. | 2.5.1 | |
| The Contractor shall attend routine project status meetings scheduled by the Government. Subcontractor representatives, if any, shall attend. Project status meetings will typically be one hour in length and may be conducted by teleconferencing using Microsoft Teams. The Government shall provide a toll-free teleconferencing number for use by all attendees. | 2.5.2 | |
| Scheduled project design reviews will be hybrid (Microsoft Teams and in-person) at Glenn Research Center. Scheduled project meetings shall include the following: |
Preliminary Design (50%)
| Critical Design (90%) | 2.5.3 |
| The Contractor shall transmit to the NASA Contracting Officer Representative (COR) or appointed designee for review and approval submittals of the various contract documents (shop drawings, calculations, material certifications, test reports, etc.). |
Ten days prior to each design review meeting, the Contractor shall electronically submit the completed progress level Shop Drawings and schedule; complete sets of design calculations and back-up data. The Contractor shall correct the deficiencies and resubmit at the same progress level until the submittal is approved.
Each submittal will be reviewed by the NASA project team with approval and/or comments and shall be returned to the Contractor at the corresponding progress level meeting scheduled or product issue within ten (10) working days after receipt. All changes will be reviewed for incorporation into the design and construction.
Other changes that may evolve at the review meetings will be resolved and incorporated, or the decisions regarding them will be forwarded by NASA to the Contractor within five (5) working days for inclusion in the remaining design engineering work.
| All NASA comments are to be incorporated unless specifically excepted by the Contractor in writing and with acknowledgement by the Government. The Government shall have the final decision authority on incorporating changes even if they bear cost and schedule implications for which the Government is ready to bear that cost and/or delay. | 2.5.6 |
| The Contractor shall coordinate the sessions with the Government jointly to facilitate the attendance and participation of all stakeholders. The minimum requirements for design submittals at each progress level are as follows: |
For the Preliminary Design (50%) and Critical Design (90%) Progress Levels:
Disposition of comments from previous review cycle (receive at 90%) Description of the design (narrative), salient features, etc.
Shop Drawings of the vacuum chambers with materials identified with dimensioned shell design showing ports, doors, utility connection points (LN2, GN2, power cabling, etc,), overall weight, weight of components to be delivered to site, etc. Provide details on each individual section and method to join sections onsite (weld, gasketed flange, etc.).
Shop Drawings of the thermal shrouds with materials identified, dimensions, flow rates, heat rejection rates, etc.
Specification or cut sheets for the TCUs Preliminary implementation plan Testing and validation plans Design report Calculations
| Production and installation schedule | 2.6.1 |
| For the Final Design (100%) Deliverable: |
The Final Design deliverable shall reflect the submittal made for the Critical Design (90%) progress level review, as amended with the comments and modifications resulting from that review. The Final Design deliverable shall be sufficiently complete to allow for manufacturing and installation at the APSL facility and shall be marked as ISSUED FOR CONSTRUCTION. In addition to the items provided at the progress level reviews, the Final Design deliverable shall also include the following:
Evidence demonstrating the incorporation of the previous progress level comments and other relevant correspondence.
Electronic submission of all native AutoCAD drawings generated for the project. NOTE all x-refs and blocks shall be bound to their respective drawings such that the drawing can be used as a standalone file without requiring additional and/or supplemental files and programs. Provide both PDF and DWG formats.
3D files in .STP format (SolidWorks native files if available).
Native model files for design and analysis models such as CAESAR, ANSYS, FLUINT or other design and analysis tools used during design.
| The Final Design deliverable shall be submitted and delivered electronically. | 2.6.1 | |
| NASA requires that all project work be completed within 1380 calendar days from contract award (start of PHASE 1). This completion date includes onsite installation, onsite acceptance testing, demobilization from the site, final site cleanup, and receipt/approval of all closeout documentation. | 3.2 | |
| Onsite installation timeline of the vacuum chambers is contingent upon the construction of the APSL facility which is occurring concurrently with this procurement. It is envisioned that the facility will be ready for the onsite installation of Vacuum Chambers 3, 4, and 5 by January 2, 2030. Coordination with NASA will be required to facilitate completion of onsite work. The Contractor should not ship equipment to site until installation timeframe shown above and as confirmed by NASA. | 3.2 | |
| Following onsite installation, the Contractor will perform Acceptance Testing as stated in the Technical Requirements Portion of this document. NASA final acceptance will be contingent upon successful completion of the Acceptance Testing. | 3.2 | |
| The Construction Contractor Manual provides very specific information regarding the requirements of performing activities on the GRC campus. The Contractor is expected to have read and understood this Construction Contractor Manual as a condition of offering. Failure to acknowledge these requirements does not constitute the basis for compensable change after award. | 3.3.1 | |
| The Contractor shall make all areas of the overall project available daily to the NASA Project Team and designees during normal business hours, extended/off-hours and by request. All contract documents shall be made available on-site to the NASA Project Team members at all times, which is in concurrence with or in addition to the contract. The NASA Project Team or designees will provide a representative(s) for all Government witnessing on project elements such as but not limited to site safety, factory acceptance testing, third party tests, material and equipment installations, pressure testing, equipment activation, etc. The Contractor shall not cover or otherwise obscure any project work prior to the witnessing of the Government. Full coordination and cooperation between the NASA Project Team and Contractor Team is required for Government inspections. | 3.3.2 | |
| The Contractor shall prepare a detailed procurement and construction schedule for this project indicating key elements of the project such as procurement, fabrication, shop testing, onsite installation, and onsite acceptance testing. The schedule shall include a graphic schedule (Gantt chart) indicating sequence of events and interrelationships using the critical path method (CPM). For onsite work, overtime and off-normal hours shall be indicated in the schedule. For onsite work, the schedule shall account for Federal Holidays (non-work days) and include an allowance for non-work days as directed by the Contract. The schedule shall be updated and submitted to the Government reflecting work progress (planned or performed) once monthly during the execution of this project. | 3.4.1 | |
| Develop the Project Schedule to the appropriate level of detail to address major milestones and to allow for satisfactory project planning and execution. Failure to develop the Project Schedule to an appropriate level of detail will result in its disapproval. The Contracting Officer will consider, but is not limited to, the following characteristics and requirements to determine appropriate level of detail. | 3.4.1.1 | |
| Include activities associated with the critical submittals and their approvals, procurement, fabrication, and delivery of long lead materials, equipment, fabricated assemblies, and supplies. Long lead procurement activities are those procurements that are not readily available and must be ordered, coordinated and delivered by a Contractor or supplier. The sequence of submittal preparation, submittal review and acceptance, fabrication/assembly/shipping and delivery should be expressed in the schedule. | 3.4.1.2 | |
| Include the following activities/tasks in the initial project schedule and all updates. |
Long procurement activities Submission and approval of Operation and Maintenance (O&M) manuals.
Submission and approval of as-built drawings.
Commissioning plan submission.
Onsite work durations.
Commissioning and activation testing.
Training and demonstration sessions.
Performance Verification testing. Include required permitting planning timeframes.
Contractor's pre-final inspection and punch list activities.
Correction of punch list from Contractor's pre-final inspection.
Government's pre-final inspection.
Correction of punch list from Government's pre-final inspection.
Final inspection.
| Beginning of warranty period(s). | 3.4.1.3 |
| NASA policy requires that Contractors submit site-specific safety and health plans (SSHASPs) as part of the contract and as described NASA GRC Safety Manual (GSM). Refer to GSM Chapter 17 - Construction Safety and Health. The plan will demonstrate the seriousness of the Contractor's intent to excel in its implementation of its safety and health program as an early indicator of its safety culture. The Contractor shall submit the SSHASP to NASA for acceptance prior to any field implementation. The Contractor may update the plan at any time or at the direction of the Government. Revisions are subject to Government review and approval prior to the execution of any subject field operations. | |
| A Notice to Proceed (NTP) for onsite work will be issued AFTER NASA approves the Contractor’s SSHASP. No on-site work shall begin without a NTP letter signed by the Contracting Officer. | 3.4.3 |
| The Contractor shall prepare a comprehensive Implementation Plan and submit the plan to NASA for review and concurrence with the SSHASP. This plan shall include, but need not be limited to, the following outline items: |
Project description Construction periods Personnel impact Utilities impact Other conditions or hazards Temporary facilities (e.g. job trailers, port-a-johns, dumpsters, lay-down areas, etc.)
Safety review Required permits and forms Security requirements Off-hour work
| Equipment delivery | 3.4.4 |
| The Contractor shall provide a 3-year warranty, valid from the date of acceptance of the work by the NASA. NASA Glenn Research Center interprets this as 3 years from the final acceptance date. |
Subcontracts or Supply Purchase Orders shall include these provisions. The following clarifications are made to assure complete understanding of warranty provisions:
The Contractor shall operate and maintain all equipment and systems installed during the acceptance testing phase until the contract final acceptance date. Following final acceptance, the Government will assume O&M responsibilities in accordance with the manufacturer's recommendations.
The Contractor shall provide a written 3-year warranty from the contract final acceptance date to the Government covering all materials, labor and workmanship. Warranty repairs may require the services of subcontractors or suppliers, but shall be managed and coordinated by the prime. The Contractor shall provide a 3-year certificate of warranty from each supplier or provider for all purchased equipment or systems.
| This provision is not affected by the Government's beneficial use or occupancy prior to the final completion. The warranty date may be adjusted throughout the course of his contract as required to include contract time extensions with an equitable adjustment to the contract. Should the Contractor complete the work ahead of schedule, the warranty provisions will be revised to reflect the actual completion. | 3.4.6 | |
| Provide in-person hands-on training for up to eight (8) designated operating and maintenance staff members. Training may be performed at Contractor facility. A qualified engineer or technician shall provide training, for a period of not less than 8 hours of normal working time and shall start after the system is functionally complete but prior to the final acceptance test. The instruction shall cover all of the items contained in the approved Operating and Maintenance Instructions. Provide written training materials for each person attending, listing step-by-step procedures required for system startup, operation, shutdown, calibration and routine maintenance. The manuals shall include the manufacturer's name, model number, parts list, list of parts and tools that should be kept in stock by the owner for routine operations and maintenance including simplified wiring and controls diagrams, troubleshooting guide, and recommended service organization (including address and telephone number) for each item of equipment. | 3.4.7 | |
| The Contractor shall attend project meetings scheduled by the Government. Subcontractor representatives shall attend. Scheduled project conferences for construction progress will be held hybrid both in person at GRC and on Microsoft Teams. | ||
| For each of these project meetings, the Contractor shall prepare a Two-Week Planning Schedule, highlighting design, fabrication, and installation progress, coordination issues and updates to the baseline schedule. Meeting minutes shall be kept by the NASA Construction Manager and distributed by the NASA Project Manager. | 3.5.1 | |
| The Contractor shall provide a monthly progress report at the beginning of each month after the Contract Award. The monthly project progress report shall include the name of the project, name of the Contractor(s), date of the report, reporting period and a brief project description. The Monthly Progress Report shall cover five specific areas as listed below: |
A description of technical progress and accomplishments, problems encountered and planned solutions for the existing reporting period and progress planned for the next period.
| An updated copy of the Gantt chart schedule showing progress against plan with the critical path identified. | 3.5.2 | |
| For on-site activities the Contractor shall designate and provide a project superintendent to coordinate and oversee all onsite activities. The superintendent is required to be onsite at all times that any work is occurring. The Contractor will provide 100% supervision over all Contractor-directed activities on the project. | 3.6.1 | |
| For all onsite tasks, the Contractor shall submit to the Project’s SharePoint and/or the Project’s Construction Manager, CM, a daily inspection report describing the daily activities for each task. Included in the report shall be the total on-site workforce identified by trade (e.g., 1 Superintendent, 1 Electrical Foreman, 2 Journeyman Electricians, 1 Electrical Apprentice etc.). | ||
| Include also in the report the progress of work, hours worked, any delays, interference or schedule conflicts, safety concerns or violations, equipment used, material received or shortages, and any visitors. | 3.6.2 | |
| Government facilities and equipment must be protected from damage at all times. | ||
| The Contractor shall provide protection for personnel and equipment when working near live electrical equipment. Electrical equipment, including suspended cable trays, shall be protected in a manner that prevents damage from inadvertent contact/collision, falling objects, hot work (e.g. sparks, weld slag, etc.) and leaks/spills. | 3.6.4 | |
| A Final Acceptance Punch List (FAP) shall be used by the Contractor and NASA to manage the acceptance of the project. The Government shall be responsible to develop the punch list during the course of the project, including any stakeholder-sponsored items. The Contractor shall facilitate the execution of the complete list to the satisfaction of the Government prior to final payment. | ||
| This Final Acceptance Punch List period shall be included in the Contractor’s implementation schedule. | 3.7.1 | |
| The Contractor shall maintain a set of drawings, which depicts the actual as-built conditions of the completed onsite installation, appropriately marked (redlined) with changes, modifications and deviations that have been encountered and incorporated (as-built) in the features of work. These redline drawings provide the project with a permanent record of each project feature. The working as-built drawings must be available on-site at all times throughout the duration of the project and must be available for review by NASA or its designee at any. At the completion of the project, this set of as-built drawings shall be submitted incorporating these changes, modification and deviations such that the final as-built conditions are accurately depicted. | 3.7.2 | |
| Expected interior chamber size: 9’ tall x 9’ wide x 18’ long |
It is expected that the thermal shroud will surround test section within the overall chamber shell
| At a minimum provide 6.5’x6.5’x15’ clear space inside the thermal shroud; as much space as possible is preferred. | Vacuum Chamber 3 Shell Requirements | |
| Rectangular shape, constructed of 304 stainless steel | Vacuum Chamber 3 Shell Requirements | |
| Previous experience developing rectangular shaped chambers of this size or larger is required | Vacuum Chamber 3 Shell Requirements | |
| Modular sections at 6ft intervals desired | Vacuum Chamber 3 Shell Requirements | |
| All welds to be internal full fusion vacuum welds, unless otherwise noted | Vacuum Chamber 3 Shell Requirements | |
| Max section weight (prior to final assembly): 10 tons (due to overhead building crane weight limitations) | Vacuum Chamber 3 Shell Requirements | |
| 5 x 10^-7 Torr capable | Vacuum Chamber 3 Shell Requirements | |
| Leak rate of 5 x 10^-8 STD ATM CC/SEC or better | Vacuum Chamber 3 Shell Requirements | |
| Machine polish #4 on all internal surfaces | Vacuum Chamber 3 Shell Requirements | |
| 16Ra surface finish on all sealing surfaces no radial lines | Vacuum Chamber 3 Shell Requirements | |
| Capable of handling temperatures down to 77 Kelvin and up to 425 Kelvin (-320F to 305F) | Vacuum Chamber 3 Shell Requirements | |
| No hardware may be placed on the top of the chamber. All flanges and hardware must be accessible from sides, back, and front of chamber | Vacuum Chamber 3 Shell Requirements | |
| Provide up to four 27.5” OD flange mounted to side of chamber to accommodate high vacuum cryopumps on the back quarter of the chamber | Vacuum Chamber 3 Shell Requirements | |
| Provide inlet and outlet flanging suitable for the associated thermal shroud on the back quarter of the chamber | Vacuum Chamber 3 Shell Requirements | |
| Provide turbo pump flanging on the back quarter of the chamber (ISO250-F flange) | Vacuum Chamber 3 Shell Requirements | |
| Provide two 20” flanges dedicated towards roughing pumps on the back quarter of the vessel | Vacuum Chamber 3 Shell Requirements | |
| Provide a variety of additional flanges for research hardware accommodation (at least QTY. 12 of ANSI 20” high vacuum flanges) | Vacuum Chamber 3 Shell Requirements | |
| Provide 20” diameter high vacuum flange on the centerline of the door of the chamber to accommodate viewport for research hardware | Vacuum Chamber 3 Shell Requirements | |
| Provide blanks and o-rings for all flanges | Vacuum Chamber 3 Shell Requirements | |
| O-ring groove on chamber-side of flanges | Vacuum Chamber 3 Shell Requirements | |
| Provide lift disc style relief device set for 2 psig | Vacuum Chamber 3 Shell Requirements | |
| Various fastening points shall be located at multiple locations inside of the chamber to secure research hardware | Vacuum Chamber 3 Shell Requirements | |
| Vacuum chamber set flat on concrete floor | Vacuum Chamber 3 Shell Requirements | |
| Swinging door preferred. Ideally allow opening by personnel without additional equipment. | Vacuum Chamber 3 Shell Requirements | |
| Door shall allow full access to the chamber end area. | Vacuum Chamber 3 Shell Requirements | |
| Rear end cap shall be removable with designated lift points that will be accessible by overhead crane (max 10 ton weight) |
Will have internal anchor points for pulling hardware into facility
| Will have a manpersonnel door on the back end of the chamber (~80” x 36”) | Vacuum Chamber 3 Shell Requirements | |
| Doors shall have appropriately sized latching mechanisms to lock door prior to pump down | Vacuum Chamber 3 Shell Requirements | |
| Testing will involve lunar simulant soils (JSC-1/1A) | Vacuum Chamber 3 Shell Requirements | |
| Design and fabrication must comply with NASA Standard 8719.17 Revision D. Some high level requirements from 8719.17 are found below: |
Materials other than those specified for use in ASME BPVC Section VIII and its reference documents may be used; however, their adequacy for the intended application shall be demonstrated to the satisfaction of the NASA Glenn Pressure Systems Manager (PSM).
Material Test Reports shall be submitted for the vacuum vessel.
If a vacuum vessel requires relief protection with PRD setting above 2 psig due to the nature of the potential pressurization source, the vessel pressure shell shall be structurally qualified in accordance with the requirements of the ASME BPVC Section VIII, Div. 1.
Vacuum vessels shall be fabricated, repaired, or altered only by either manufacturers having an ASME “Code Stamp” (ASME “U” Authorization) or NBIC “R” Stamp, or will be audited and determined by the NASA Glenn PSM to have an equivalent quality assurance manual and process, including implementation.
The PVS manufacturing shall be in strict accordance with the quality assurance manual of the manufacturing organization.
All welding shall be:
Performed in accordance with procedures qualified in accordance with the ASME BPVC Section IX, including all essential variables for the joint in question.
Performed by welders qualified and current in accordance with the ASME BPVC Section IX, on such weld procedures.
Post weld heat treatment shall be performed as required and in accordance with the ASME Code.
| Inspections shall be performed by inspectors trained and certified in use of the techniques being applied, in accordance with the requirements of the ASME BPVC Section V. | Vacuum Chamber 3 Shell Requirements |
| Documentation shall include at minimum: |
General Arrangement Drawing
P&ID Drawing
BOM
Weld Procedures
ASME Code Calculations
Leak Check Procedures
Leak Check Reports
Material Test Reports
| As-built Drawings | Vacuum Chamber 3 Shell Requirements |
| D-tube or fin type design preferred |
Pillow type (dimple plate) acceptable only with proof of pervious successful design packages with similar heat loads and sizes.
| Heat load calculations required for design specifications | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements |
| Constructed of 1100 aluminum preferred |
| Stainless steel acceptable only with proof of previous successful design packages with similar heat loads and sizes | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Previous experience developing thermal shrouds of similar size and shape is required | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Must fit inside the vacuum chamber shells and minimize wasted space. At a minimum provide 6.5’x6.5’x15’ clear space inside the thermal shroud; as much space as possible is preferred. | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Capable of rejecting 10 kW heat load at minimum. | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Capable of handling fully flooded Liquid Nitrogen | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Interior high emissivity paint suitable for high vacuum and for specified temperatures. | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Perforated Multi-Layer Insulation (MLI) on outside to serve as thermal barrier between thermal shroud and tank wall. Outside surface of chamber must meet touch point temperature requirements of GRC Safety Manual | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| LN2 flow rate calculations and pipe sizing calculations are required for a 10kW heat load | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Provide proportional LN2 valving required for control | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Previous control methodology experience is required | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Interior flanges or fittings shall use ConFlat or VCR flanges | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Appropriate vacuum jacketed feedthrough and flanging shall be used at inlets and outlets to minimize thermal leak | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Capable of handling weight of test article (1000 kg) or means to pass load of test article through thermal shroud to vacuum chamber shell itself. Test article should be supported across entire length (a platform for test article to rest on). If passing the load through thermal shroud to the vacuum chamber then a thermal break is required to reduce conduction. | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Platform should allow the test article to roll on casters across its surface from outside the vacuum chamber with locations to fasten test article. | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Various fastening points shall be located at multiple locations on the thermal shroud or means to pass through shroud to shell for fastening points. | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Fully instrumented including with thermocouples (1 Type T TC per 16 sq ft). Redundant thermocouples on inlet and outlet of thermal shroud. Utilize TC grade wire and bolt-on attachment method. | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Piping/tubing shall be designed, fabricated, tested and examined in accordance with ASME B31.3 (or ASME Section VIII Division 1 or 2) for a design pressure of 150 psig from –320 to 400 F | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Modular thermal shrouds | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Thermal Shrouds shall have appropriate openings for cryopumps, roughing pumps, turbopumps, as well as for instrumentation and for research hardware which should align with specified flanging from chamber shell requirements | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Thermal shroud shall be removable to facilitate cleaning access to the facility and for the thermal shroud itself | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| +/-2K thermal uniformity and temperature stability | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| TCU will be placed in close proximity to vacuum chamber (assume within 20’). Provide the stainless steel vacuum jacketed piping required from TCU to vacuum chamber / thermal shroud. Coordinate with NASA on final layout of the hardware. |
Design, flexibility analysis, fabrication, and testing of the VJP spools shall be in accordance with ASME B31.3 for normal fluid service. All ASME B31.3 code engineering design calculations and supporting calculations shall be submitted for approval by NASA.
| The jacket of each section shall be factory evacuated and sealed, in order to maintain a permanent vacuum. A vacuum valve shall be provided in each pipe section. | Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements |
| Documentation shall include at minimum: |
General Arrangement Drawing
P&ID Drawing
BOM
Weld Procedures
ASME Code Calculations
Leak Check Procedures
Leak Check Reports
Material Test Reports
As-Built Drawings
Thermal Load Calculations
Operation and Maintenance Manual – how to remove thermal shroud, cleaning, routine maintenance, etc.
| Vacuum Chamber 3 Thermal Shroud/ Vacuum Jacketed Pipe Requirements | |
| Electric heaters are not an acceptable means of heating the chamber. TCU is required. | Thermal Conditioning Units (TCU) Requirements |
| Thermal Vacuum Control Systems for use with a thermal shroud in a vacuum chamber | Thermal Conditioning Units (TCU) Requirements |
| These units will be controllable from 90K to 425K (–298F to 305F) | Thermal Conditioning Units (TCU) Requirements |
| They will provide precise uniform control throughout the entire range (+/-2k thermal uniformity and temperature stability) | Thermal Conditioning Units (TCU) Requirements |
| Will have refrigeration capacity of at least 15 kW | Thermal Conditioning Units (TCU) Requirements |
| Will have heating ability of at least 10 kW | Thermal Conditioning Units (TCU) Requirements |
| Will be supplied with N2 as the working fluid | Thermal Conditioning Units (TCU) Requirements |
| Commercial off the shelf TCU required. | Thermal Conditioning Units (TCU) Requirements |
| Shall have onboard control system that enables setpoint control of test parameters and profiles that can be communicated with by an external chamber PLC (MODBUS TCP/IP recommended) | Thermal Conditioning Units (TCU) Requirements |
| TCU will be placed in close proximity to vacuum chamber (assume within 20’). Provide the stainless steel vacuum jacketed piping required from TCU to vacuum chamber / thermal shroud. Coordinate with NASA on final layout of the hardware. |
Design, flexibility analysis, fabrication, and testing of the VJP spools shall be in accordance with ASME B31.3 for normal fluid service. All ASME B31.3 code engineering design calculations and supporting calculations shall be submitted for approval by NASA.
| The jacket of each section shall be factory evacuated and sealed, in order to maintain a permanent vacuum. A vacuum valve shall be provided in each pipe section. | Thermal Conditioning Units (TCU) Requirements |
| Documentation shall include at minimum |
Electrical wiring diagram Utility consumption list Process control philosphyphilosophy External communication instructions
| Operation and Maintenance Manual | Thermal Conditioning Units (TCU) Requirements | |
| Leak check and pressure test of thermal shroud in accordance with ASME B31.3 | Fabrication Shop Acceptance Testing | |
| TCU completely assembled, wired and leak checked. Including internal water piping, gas, and compressed air | ||
| Functional test reports after completion | Fabrication Shop Acceptance Testing | |
| Vacuum testing to 5x10^-7 and leak check rate 1 x 10^-8 STD ATM CC/SEC or better of vacuum chamber shell. |
| The Contractor shall provide the roughing, high vacuum pumps, and calibrated helium leak checker to perform the vacuum testing. It is not anticipated that the remaining system components will be ready for acceptance testing when chamber installation is completed. | Onsite, Post-Installation, Acceptance Testing |
| Operational Lleak check of thermal shroud in accordance with ASME B31.3 |
| Shroud will be filled with LN2 at full vacuum and run through full operational thermal range. External lines will be visually inspected for leaks. Internal line leaks will be inspected through chamber base pressure. (NASA will provide LN2 for this operation) | Onsite, Post-Installation, Acceptance Testing |
| Full thermal range testing of thermal shroud |
Flood with LN2 (NASA will provide LN2 for this operation)
| Full thermal range testing (hot and cold) of chambers with TCU | Onsite, Post-Installation, Acceptance Testing | |
| TCU operational training | Onsite, Post-Installation, Acceptance Testing |
File details come from the government source that posted it. Updated .