NASA Lewis Research Center, 21000 Brookpark Road, Cleveland, Ohio 44135

43 -- MULTISTATE,CENTRIFUGAL GASEOUS HYDROGEN COMPRESSOR SYSTEM SOL RFO3-029804 DUE 071495 POC Kathleen K. Needham, Contracting Officer, (216) 433-2802, MS 500-306. Only written requests for copies of the solicitation will be accepted via mail or fax at (216) 433-5185. Requests shall include the solicitation no. RFO3-029804 and your company's name, phone no., and mailing address. The hydrogen compressor is an integral component of system designed to subcool a stream of liquid hydrogen by expanding or flashing a side-stream of the liquid to a lower pressure. This expansion occurs inside the shell vapor space of a shell and tube heat exchanger. The compressor controls the pressure of the heat exchanger shell at 1.40 plus/minus 0.20 psia. Hydrogen vapor at 1.4 psia and 25.9 deg R enters the low pressure plenum off the heat exchanger shell and flows to the suction side of the compressor. The gas (.04 lb/sec) is compressed from nominally 1.2 psia to a pressure 0.9 psi above atmospheric pressure before the gas is exhausted to a flare gas header system for venting. Compressor must operate a cryogenic inlet gas temperature of minus 434 degrees F and system horsepower shall not exceed 200 HP. Delivery to Cleveland, Ohio 44135. Delivery schedule is 240 calendar days after contract award. The date set for receipt of proposals is approximate. This notice is for information only. Justification to permit contracting with Barber-Nichols Inc. has been prepared using citation 10 USC 2304(c)(1) as its authority. This procurement is being conducted under the NASA MidRange Pilot Test Program approved by the Office of Federal Procurement Policy on April 16, 1993. All responsible sources may submit a quotation which will be considered. See Numbered Note(s): 22. (0179)

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