MODIFICATION
61 -- High Density Electrical Energy Storage System
- Notice Date
- 2/4/2003
- Notice Type
- Modification
- Contracting Office
- Department of the Navy, Naval Sea Systems Command, NUWC Division Newport, Simonpietri Drive, Newport, RI, 02841-1708
- ZIP Code
- 02841-1708
- Solicitation Number
- N66604-03-R-1341
- Response Due
- 2/21/2003
- Archive Date
- 3/8/2003
- Point of Contact
- Adam Tuchman, Contract Negotiator, Phone 401-832-1909, Fax 401-832-4820, - Lisa Brazil, Contract Negotiator, Phone 401-832-1437, Fax 401-832-4820,
- E-Mail Address
-
tuchmanam@npt.nuwc.navy.mil, brazillm@npt.nuwc.navy.mil
- Description
- Amendment 2 to Sources Sought Notice. Here are some additional questions received and our responses. 1) Are the two pulses 30 seconds apart or 30 seconds or less? Two pulses at 30 seconds apart. 2) Can lithium ion batteries be used on the submarine? There are existing Navy guidelines for use of Li ion batteries on submarines (Navy Technical manual S9310.SAF.010), however there is no current high power submarine application of Li ion batteries. It is a technology being explored for submarine use in several areas, but none have been fielded as of yet. 3) Does the power pulse, specified at 2 MW and 1 second, have a continuous 2 MW power draw for 1 second or does the power ramp up to 2 MW over 1 second? Alternately, specify the energy delivered to the load over the 1 second pulse if it is different than 2 MJ. The energy storage system should support a 2 MW continuous draw for 1 second, i.e. 2 MJ energy delivered. 4) In reference to the requirement to "be capable of remaining at a state of charge capable of supporting its duty cycle for its entire service life, or be capable of being charged to this level in less than 30 seconds." Does this mean that input power is not available during the periods when the system is not being used? Input power is available during periods where the system is not in use. The intent of this requirement is not to exclude a system that can not maintain itself in a state of charge for an indefinite period of time, but is capable of coming to full power in 30 seconds or less. 5) In reference to the requirement that "Recharging is not permitted during pulse discharge." The duty cycle is described as 2 pulses during a 30 second period, followed by 5 minutes of downtime. Does this recharging restriction above apply to the entire 30 second interval, or just to the 1 second pulse times? That is, can some level of recharging be done between the 1 second pulses? Recharging is only not permitted during the actual 1 second pulse. Recharging during the 30 second interval between pulses, or any other time that a pulse in not actually occurring is permitted. 6) Must the system be capable of recharging via both 700VDC and 450VAC or is the vendor free to select which input voltage the system will use, and restrict it to that type only? Vendor has the option to select between the two supply voltages. 7) Is the load truly a constant power load or is it a constant resistance? The requirement is equivalent to a step function for 1 second at a constant 2 MW. NAICS: 335911. There is no solicitation associated with this notice.
- Record
- SN00252988-W 20030206/030204213630 (fbodaily.com)
- Source
-
FedBizOpps.gov Link to This Notice
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