SOLICITATION NOTICE
99 -- CANDIDATE LI-ION CELL DESIGNS FOR THE INTERNATIONAL SPACE STATION BATTERY
- Notice Date
- 3/19/2009
- Notice Type
- Modification/Amendment
- NAICS
- 335912
— Primary Battery Manufacturing
- Contracting Office
- NASA/Lyndon B. Johnson Space Center, Houston Texas, 77058-3696, Mail Code: BH
- ZIP Code
- 00000
- Solicitation Number
- NNJ09282946Q
- Response Due
- 3/24/2009
- Archive Date
- 3/19/2010
- Point of Contact
- Perry L Mueller, Contract Specialist, Phone 281-483-7158, Fax 281-244-0995, - Ann E. Bronson, Contracting Officer, Phone 281-483-9889, Fax 281-244-5331, />
- E-Mail Address
-
Perry.l.mueller@nasa.gov, ann.e.bronson@nasa.gov<br
- Small Business Set-Aside
- N/A
- Description
- This is amendment 2 to the combined synopsis/solicitation entitled Candidate Li-ionCell Designs for the International Space Station Battery, NNJ09282946Q, which was postedon March 05, 2009. You are notified that the following changes are made: 1. The due date for responses has been extended. Offers for the items described inNNJ09282946Q are due by 01:30 local time, March 24, 2009.2. Clarify that offers for the items listed in the combined synopis/solicitation must bemailed to Perry Lamar Mueller, 2101 NASA Parkway, Houston, TX 77058. Electronic copieswill not be accepted. 3. Answer the following questions below:Question: Can the charge/discharge cycles be run at an EOCV less than the 126V, forexample we would recommend that in the actual use that an EOCV of 120V be used, is thisacceptable?Answer: Yes. The 76V to 126V is a maximum voltage window. Selecting narrower operatingconditions is acceptable. Question: The maximum charge rate is 73A from the Battery Charge Discharge Unit, is itacceptable to specify a charge current lower than the 73A to maximize battery life?Answer: Yes. Any maximum charge current that allows the battery to meet RFQ requirementsat or below 73A is acceptable. Question: We do not understand the meaning or contents of paragraph 5.4, what is therelevance of this paragraph to a proposed battery solution?Answer: Your proposed battery solution must be capable of delivering 7220W continuous for35 minutes in the off-nominal fault case where 1/6th of the ISS Li-ion ORUs fail toperform. The remaining functional battery ORUs will have their power demands increase by20%. The life requirement must be met or exceeded while operating at the nominal 6000Wlevel. Question: For the CEV, the continuous power of 4938W seems high when compared to 20% DODon a 3361Wh BOL battery. The 20% DOD would equate to an energy content per orbit of672Wh.Dividing the 672Wh by the power of 4938W gives 0.136 hours or 8.2 minutes. Ourquestion is this correct for the presumed CEV use?Answer: The 4938W continuous covers a contigency return operational condition that willnot be restricted by the 20% DoD LEO limit. The CEV has many mission phases other thatLEO.Documents related to this procurement will be available over the Internet. Thesedocuments will reside on a World Wide Web (WWW) server, which may be accessed using a WWWbrowser application. The Internet site, or URL, for the NASA/JSC Business Opportunitieshome page is http://prod.nais.nasa.gov/cgi-bin/eps/bizops.cgi?gr=D&pin=73 Offerors are responsible for monitoring this site for the release of the solicitation andany amendments. Potential offerors are responsible for downloading their own copy ofthe solicitation and amendments (if any).
- Web Link
-
FedBizOpps Complete View
(https://www.fbo.gov/?s=opportunity&mode=form&id=213a5ca4e95942ea48ff106f09eb4fbb&tab=core&_cview=1)
- Record
- SN01773226-W 20090321/090319220313-213a5ca4e95942ea48ff106f09eb4fbb (fbodaily.com)
- Source
-
FedBizOpps Link to This Notice
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