SOLICITATION NOTICE
A -- DESIGN & BUILD A NEW NOZZLE FOR THE HYMETS ARC HEATER AT NASA LARC
- Notice Date
- 2/7/2005
- Notice Type
- Solicitation Notice
- NAICS
- 336419
— Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing
- Contracting Office
- NASA/Langley Research Center, Mail Stop 144, Industry Assistance Office, Hampton, VA 23681-0001
- ZIP Code
- 23681-0001
- Solicitation Number
- LAT-98487
- Response Due
- 2/22/2005
- Archive Date
- 2/7/2006
- Description
- NASA LaRC has a requirement to develop specifications and manufacture a new test nozzle to increase the achievable stagnation pressures in the HYMETS (Hypersonic Materials Environmental Test System) arc-jet facility located at NASA LaRC in Bldg. 1148, Room 104. This work will involve determining the necessary requirements for a new nozzle, developing new drawing, fabricating the nozzle, and a site visit to LaRC to oversee installation and check out of new nozzle. NASA LaRC intends to purchase the items from PEC Professional Services, Inc. (PEC) located in Manchester, TN. The government's authority for other than full and open competition is that there exists only one qualified source. PEC specializes in the support of arc-jet facilities such as the HYMETS here at NASA LaRC. The company has provided several consultations and upgrades to the HYMETS over the past 10 years; thereby, developing a unique knowledge of the design, status, and operating conditions. This is important as there are only a few operating arc-jets in the United States and none are comparable to the HYMETS here at NASA LaRC. For this proposal, PEC will take inputs from LaRC for required conditions desired on the model. We will analyze the conditions using a version of ACE (Aero thermal Equilibrium Code) modified for arc heater testing applications. The results of the analysis will be used to determine a nozzle geometry that will provide required conditions. There are two important issues that will need to be analyzed to determine if they will have an impact on the performance of a new nozzle. First, we are certain that to achieve the desired conditions the nozzle throat diameter will be larger than ?-inch. At this time we estimate it will be 30% larger. We will need to insure the vacuum pump system is large enough to handle any increase in mass flow that may result, depending on operating ranges. Second, since the nozzle throat will be larger than the bore of the arc heater (1/2-inch) there is a possibility the minimum area of the nozzle may not choke and therefore may not produce supersonic flow. This is a complex analysis that depends on several variables and we cannot completely depend on analysis alone to determine this. We will need to test the nozzle to ultimately determine if it will be an issue. We believe the there is a possibility nozzle will work with the existing hardware. If it does not, then new segments with larger bores and a new anode will be required. If the new nozzle works with the existing segment and anode geometry, PEC can provide new segments and anodes to LRC for spare parts using the existing geometry. PEC proposes to perform a preliminary analysis and provide a report, which will recommend the nozzle geometry and estimated model conditions. We will provide firm prices for fabrication of the hardware and provide the engineering and inspection management and shipping. PEC will contract a fabricator, arrange to purchase material, fabricate the components and deliver the final components when complete. The following sections describe the services PEC will provide. PEC will perform the necessary thermal and stress analysis for the parts. Preliminary drawings of the components to be fabricated and of modifications required for existing components will be made and delivered to NASA LaRC for inspection and comments. Once all comments are incorporate, final drawings will be made and delivered to the vendor for fabrication. Revisions to existing drawings will be limited to ?red-line? changes on printed copies of existing components unless electronic files (DXF format) are provided. If electronic drawing files of existing components do not exist, PEC can produce electronic drawings of these components if requested by LaRC. An additional fee would be required for this effort as it is not included is this proposal. In any case, all drawings and analysis will be delivered with parts at delivery. PEC will contract the fabrication of the nozzle, split core and if required the segments and anode assembly. PEC will provide the manufacturer procedures to perform in-process production checks and quality control measurements on each individual part. Any rework or defect repair will be recorded on the documentation to insure quality control. PEC will perform and document the necessary pressure check of the components per ASME code B31.3. All documentation will be provided to NASA LaRC on delivery of the completed parts. PEC will provide installation and testing of the components. The Government does not intend to acquire a commercial item using FAR Part 12. See Note 26. Interested organizations may submit their capabilities and qualifications to perform the effort in writing to the identified point of contact not later than 4:30 p.m. local time on February 22, 2005. Such capabilities/qualifications will be evaluated solely for the purpose of determining whether or not to conduct this procurement on a competitive basis. A determination by the Government not to compete this proposed effort on a full and open competition basis, based upon responses to this notice, is solely within the discretion of the government. Oral communications are not acceptable in response to this notice. All responsible sources may submit an offer which shall be considered by the agency. An Ombudsman has been appointed. See NASA Specific Note "B". Any referenced notes may be viewed at the following URLs linked below.
- Web Link
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- Record
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