R&D Contracting Division, Bldg 7, 2530 C Street, WPAFB OH 45433-7607

A -- THERMAL MANAGEMENT RESEARCH FOR POWER GENERATION, PART 1 OF 2 SOL PRDA #96-02-POK POC John E. Leland, Project Engineer, WL/POOS-1, 513-255-2922; Rose M. Reed, Contracting Officer, WL/POKA, 513-255-2730. A--INTRODUCTION: Wright Laboratory (WL/POOS-1) is interested in receiving proposals (technical and cost) on the research effort described below. Proposals in response to this PRDA shall be submitted by 96 Apr 08 1500 hours Eastern Time, to Wright Laboratory, Directorate of Research and Development Contracting, 2530 C Street, Building 7, Area B, Attn: (Roger Collins, WL/POKA), Wright-Patterson AFB OH 45433-7607. This is an unrestricted solicitation. Small businesses are encouraged to propose on all or any part of this solicitation. Proposals submitted shall be in accordance with this announcement. Proposal receipt after the cutoff date and time specified herein shall be treated in accordance with restrictions of FAR 52.215-10, copy of this provision may be obtained from the contracting point of contact. There will be no other solicitation issued in regard to this requirement. Offerors shall be alert for any PRDA amendments that may be published in the Commerce Business Daily. This PRDA may be amended to allow subsequent submission of proposal dates. Offerors should request a copy of the WL Guide entitled, ''PRDA and BAA Guide for Industry.'' This guide was specifically designed to assist offerors in understanding the PRDA/BAA proposal process. Copies may be requested from the contracting point of contact as shown above. B--REQUIREMENTS: (1) Technical Description: The purpose of this effort is to develop advanced aircraft thermal management concepts for emerging AF power technologies. High power/high temperature electronics, electric actuators, switched reluctance machines (SRM) and integrated engine/generator systems are examples of power technologies that will require innovative cooling solutions. By conceiving and investigating advanced techniques, the Aerospace Power Division can identify those concepts that merit subsystem integration analysis and full feasibility studies. The experimental or numerical evaluation of the proposed concepts shall be an integral part of this program. As part of this program, the Aerospace Power Division will make available its unique in-house test facilities and equipment as well as office space, (see Section C, (6) Base Support). The offeror and the Air Force can reap many benefits if the proposed effort is performed on-site. An on-site program will provide a level of synergism between the offeror, Aerospace Power Division technologists, and potential customers that cannot otherwise be attained. For example, the offeror will have first hand access to the current direction of Aerospace Power Division thrusts which will allow them to formulate future technology development strategies more quickly and with better insight to the Air Force's needs. The Air Force will have the advantage of seeing the technology developed on a day-to-day basis which will give us insight into the technology's strengths and weaknesses. Such insight has been found to lead to the genesis of similar concepts which are more able to meet the needs of potential customers as well as follow-on programs to address development concerns for promising technologies. Thermal Management Research for Power Generation generally includes: actuator cooling, actuator control electronics cooling, rotating machinery, (starters, alternators, generators, fuel pumps, etc..) cooling, windage effects in rotating machinery, power electronics cooling, and high ''g'' and vibration effects on heat transfer mechanisms. Most Thermal Management Research for Power Generation problems can be grouped into one of three broad areas: Electronics Cooling: High heat flux ()100 W/cm2) and high temperature ()300 C) power electronics are being developed for future military aircraft. Micro and macro scale cooling concepts are desired. The integration of micro and macro scale cooling is a long term goal to be considered. Actuator Cooling: The much larger dissipation rates and lower frequency operation of actuators yield power transients which are manifested by large thermal transients. Furthermore, actuators are often located in airframe extremities where fewer cooling options are available. Autonomous pumped or capillary driven cooling concepts are desired. Techniques which can overcome high speed skin heating problems are a must. Rotating Machinery Cooling: Magnetic and windage losses create high heat loads in high speed rotating machines. The rotor is often the most difficult component to cool because external air cooling increases windage losses and the shaft is the only path for conduction cooling. Confined liquid cooling would require the use of problematic seals.. Thus, there is a need for concepts that will yield lower windage losses and increased heat transfer. A thorough knowledge of windage will be necessary to generate such concepts. In all of these three areas, passive and autonomous concepts are preferred over those requiring centralized loops. Technologies which are adaptable to a Line Replacement Unit (LRU) manufacturing strategy shall also be preferred. Use of fluids already in use on the aircraft are strongly encouraged unless the cooling device is serviced as a LRU, (i.e., the AF will not be required to maintain the fluid in the inventory). Alternative fluids shall be environmentally safe. In general, proposed concepts should comply with the current AF philosophy of providing improved Reliability & Maintainability (R&M) for reduced life cycle cost, better environmental compatibility, and retrofittable solutions for aging and future aircraft. Basic research shall be directed towards acquiring a new level of understanding of an issue which has direct relevance to AF aircraft systems. The offeror's proposal shall provide sufficient information to convince the evaluators that the contractor understands the current state-of-the-art and its implementation. The goals of any basic research effort shall be clearly defined. (2) Deliverable Items: The following deliverable data items shall be proposed: (a) Status Report, DI-MGMT-80368/T, bi- monthly, (b) Performance and Cost Report, DI-FNCL-80912/T bi-monthly, (c) Project Planning Chart, DI-MGMT-80507A/T, annually, (d) Contract Funds Status Report (CFSR), DI-F- 6004B/T, annually, (e) Presentation Material, DI-ADMN-81373/T, as required, (f) Scientific and Technical Reports, DI-MISC-80711/T, (Contractor's Billing Voucher), monthly, (g) Scientific and Technical Reports, DI-MISC-80711/T, (Draft and Reproducible Final). (3) Security Requirements: Classified material shall not be generated under this contract. All contractors shall have proper clearance for computer network use. (4) Other Special requirements: International Traffic in Arms Regulations does not apply. C--ADDITIONAL INFORMATION: (1) Anticipated Period of Performance: The total length of the technical effort is estimated to be 48 months. The contractor shall also provide for an additional 4 months for processing completion of the final report. (2) Expected Award Date: July 1996. (3) Government Estimate: The Government funding profile is estimated to be as follows: FY96 - $105K, FY97 - $200K, FY98 - $210K, FY99 - $210K, FY00 - $105K. This funding profile is an estimate only and is not a promise for funding as all funding is subject to change due to Government discretion and availability. (4) While the Air Force reserves the right to select for award of a contract, grant or cooperative agreement any, all, part, or none of the proposals received, the immediate intent is to make one award encompassing all three technical areas described in Section B. End of Part 1. (0054)

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