SOURCES SOUGHT
28 -- LUBE OIL COOLER (LOC) HEAT EXCHANGER (HE)
- Notice Date
- 8/6/2004
- Notice Type
- Sources Sought
- NAICS
- 339999
— All Other Miscellaneous Manufacturing
- Contracting Office
- Defense Logistics Agency, Logistics Operations, Defense Supply Center Columbus, P O Box 3990, Columbus, OH, 43216-5000
- ZIP Code
- 43216-5000
- Solicitation Number
- MILL23699orMILL7808
- Response Due
- 9/24/2004
- Archive Date
- 10/9/2004
- Point of Contact
- Dena Vernon, Contract Specialist, Phone 614-692-3449, Fax 614-692-2474, - Laurie Gambert, Contract Specialist, Phone 614-692-7063, Fax null,
- E-Mail Address
-
dena.vernon@dscc.dla.mil, laurie.gambert@dscc.dla.mil
- Description
- THE GOVERNMENT IS ISSUING A SOURCES SOUGHT NOTIFICATION TO FIND INTERESTED PARTIES TO PARTICIPATE IN AN UPCOMING PROCUREMENT ACTION FOR A NEWLY DESIGNED LUBE OIL COOLER (LOC) HEAT EXCHANGER (HE) FOR THE NAVY'S LANDING CRAFT AIR CUSHION (LCAC) VEHICLES. tHE LOC HE (CORE) SHALL BE A COMPACT, TUBE FIN CONSTRUCTION, AMBIENT AIR COOLED ASSEMBLY. THE LUBRICATION OIL SYSTEMS SERVED BY THE COOLER ARE ASSOCIATED WITH HIGH-HORSEPOWER GEAR BOXES USING MIL-L-23699 SYNTHETIC OIL OR MIL-L-7808 SYNTHETIC OIL (FOR COLD WEATHER OPERATIONS). THE CURRENT LCAC LOC HE (CORE) IS AN UP-FLOW, FIN TUBE HEAT EXCHANGER, CONSISTING OF NICKEL TUBES AND COPPER FINS. INTERESTED PARTIES MY CONTACT THE CONTRACTING OFFICER FOR FURTHER INFORMATION AT: DENA.VERNON@DLA.MIL OR LAURIE.GAMBERT@DLA.MIL SEE BELOW FOR COMPLETE ITEM DESCRIPTION: LOC-LCAC PURCHASE DESCRIPTION LUBE OIL COOLER HEAT EXCHANGER (CORE)LANDING CRAFT, AIR CUSHION 1. SCOPE 1.1 Scope. This Purchase Description (PD) establishes the requirements for the design, manufacture, assembly, test and acceptance of a Lube Oil Cooler (LOC) Heat Exchanger (HE) (Core) for the Landing Craft, Air Cushion (LCAC). 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are needed to meet the requirements specified in sections 3 and 4 of this PD. This section does not include documents cited in other sections of this PD or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they shall meet all specified requirements cited in sections 3 and 4 of this PD. In the event of conflicts between this specification and referenced documents, the requirements of this specification shall be considered superseding requirements. 2.2 Government documents. 2.2.1 Specifications, Standards and Handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation. SPECIFICATIONS FEDERAL A-A-50271 Commercial Item Description Plate, Identification COMMERCIAL ASTM-A967 Passivation Treatments for Corrosion-Resistant Steel Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts MILITARY MIL-A-8625 Anodic Coatings, for Aluminum and Aluminum Alloys MIL-PRF-24712 Coatings, Powered MIL-PRF-81733Performance Spec Sealing and Coating Compound, Corrosion Inhibitive MIL-L-7808 Lubricant Oil, Aircraft Turbine Engine, Synthetic Base MIL-L-23699 Lubricating Oil, Aircraft Turbine Engine, Synthetic Base MIL-S-880 Sealing Compounds, Temperature, Resistant, Integral Fuel Tanks and Fuel Cell Cavities, High Adhesion MIL-E-15090 Enamel Equipment, Light Grey (Formula 111) STANDARDS MILITARY MIL-STD-129 Department of Defense Standard Practice Military Marking for Shipment and Storage MIL-STD-130 Department of Defense Standard Practice Identification Marking of U.S. Military Property MIL-STD-810 Department of Defense Test Method Standard for Environmental Engineering Considerations And Laboratory Tests MIL-STD-167 echanical Vibration of Shipboard Equipment Type I ? Environmental and Type II- Internally Excited MIL-STD-882 Department of Defense Standard Practice for System Safety MIL-STD-889 Military Standard Dissimilar Metals MIL-STD-278 Fabrication, Welding and Inspection for Machinery Piping and Pressure Vessels in ships of the USN MIL-STD-1472 Department of Defense Design Criteria Standard Human Engineering MS33515J Fitting End, Standard Dimensions for Bulkhead Flareless Tube Connections MS33786 Fittings Installation, Flared Tube and Hose, Swivel S9074-AQ-GIB-010/248 Requirements for Welding and Brazing procedures and Performance Qualification DATA ITEM DESCRIPTION DI-DRPR-81000A Product Drawings and Associated Lists HANDBOOK MILITARY MIL-HDBK-46855 Human Engineering Program Process and Procedures (Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks are available from the Standardization Documents Order Desk, Building 4D, 700 Robbins Ave., Philadelphia, PA 19111 5094.) 2.3 Non Government publications. The following document(s) form a part of this PD to the extent specified herein. Unless otherwise specified, the issues of the documents, which are DoD adopted, are those listed in the issue of the DoDISS cited in the solicitation. AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) Boiler and Pressure Vessel Code, Section IX, Qualification Standard for Welding and Brazing Procedures, Welders, Brazers and Welding and Brazing Operators. (Application for copies should be addressed to the American Society of Mechanical Engineers, 345 East 47th St., New York, NY 10017.) AMERICAN WELDING SOCIETY (AWS) B2.2 Standard for Brazing Procedure and Performance Qualification. D1.1 Structural Welding Code Steel. D1.2 Structural Welding Code Aluminum. (Application for copies should be addressed to the American Welding Society, 550 NW LeJeune Road, PO Box 351040, Miami, FL 33135.) SOCIETY OF AUTOMOTIVE ENGINEERS (SAE) J429 Mechanical and Material Requirements for Externally Threaded Fasteners J492 Rivets and Riveting AS7107 National Aerospace and Defense Contractors Accreditation Program Inspection System Requirements (Application for copies should be addressed to the Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096.) (Non Government standards and other publications are normally available from the organizations that prepare and distribute the documents. These documents also may be available in or through libraries or other informational services.) 2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Description. The LOC HE (Core) described by this specification shall be a compact, tube fin construction, ambient air cooled assembly. The lubrication oil systems served by the cooler are associated with high-horsepower gearboxes using MIL-L-23699 synthetic oil or MIL-L-7808 synthetic oil (for cold weather operations). The current LCAC LOC HE (Core) is an up-flow, fin tube heat exchanger, consisting of nickel tubes and copper fins. The air flow is provided by a hydraulically-driven fan as shown at Figure 1 which is not part of this procurement. 3.2 First Article. A sample shall be subjected to a First Article inspection in accordance with section 4.2. 3.3 Performance and Performance Requirements 3.3.1 Performance. The LOC HE (Core) shall provide cooling in accordance with the following operating parameters: a. Fluid outlet temperature: 160?F maximum b. Ambient temperature: 10?F to 110?F (110?F dry bulb/70?F wet bulb design temperature) c. Heat transfer rate: 402,000 BTU/Hr, at design conditions defined within this specification. 3.3.2 Heat Exchanger (HE) Characteristics. The use of Copper is authorized for LOC HE (Core) components. However, free machining grades of copper and copper grades containing more than 0.05% lead shall not be used. The LOC HE (Core) fins shall have a fin-to-fin and tube-to-tube gap of not less than 0.1 inch with a fin thickness of not less than 0.01 inch. All surfaces shall be Electro-Fin ? coated or equivalent. The LOC HE (Core) fins and tubes shall be constructed of materials with a minimum thermal conductivity of 0.90 cal/(cm2 ?cm ? s ? 0C). The following parameters shall apply: a. Design oil inlet flow: 37.5 GPM aerated with 16 SCFM air b. Fluid inlet temperature range: 10?F to 250?F c. 200?F design oil inlet temperature d. Design fluid operating pressure. 40 PSIG e. LOC HE (CORE) shall operate with a flow of 37.5 GPM, 200?F oil without damage at 200?F ambient for periods of 5 minutes minimum (to satisfy well deck operations). f. Design proof pressure: 108 PSIG. No yielding or permanent. deformations permitted. g. Design burst pressure: 180 PSIG. No failures permitted h. HE oil pressure drop: 35 PSID maximum at 200?F design temperature and design fluid flow i. Design air flow: 5525 ACFM at 14.7 PSIA, at inlet air temperature of 110?F j. HE air pressure drop: 3.0 inches H2O maximum at design air flow k. Design specific heat of aereated oil = 0.458 Btu/lb ?F, density of aereated oil = 0.0341 lb/in3. 3.3.3 Bypass Valve. The LOC HE (Core) shall incorporate a combination pressure relief and thermostatically controlled bypass valve discharging to the LOC outlet with the following characteristics: a. Fully open at -30?F to 120?F + 5?F b. Fully closed at 140?F + 2?F c. Fully open pressure drop differential at 120?F and a rated oil flow in accordance with paragraph 3.3.2 (a) shall be 35 PSI drop differential maximum d. Pressure relief-cracking pressure at 50-PSI drop differential minimum at 175?F. Flow shall be at 28GPM at 90-PSI differential and + 75?F. e. Valve seat leakage fully closed shall not exceed 200 CC/Min. 3.3.4 Inlet Air Filtration. The LOC HE (Core) shall be protected with a filtration system which shall be comprised of an inlet filter and a Foreign Object Damage (FOD) screen. The inlet filter screen shall be sized to prevent particles larger than tube or fin spacing from entering the LOC HE (Core). The FOD screen shall be positioned down stream of the inlet filter and it shall be one inch sq mesh x .120 wire. The inlet filtration system shall be designed for ease of removal to facilitate access to tube fin assembly for enhanced maintainability. 3.3.5 Operating and Service Life. The LOC HE (Core) shall be designed to have an operating life in excess of 6,000 operating hours when operated in environmental conditions of paragraph 3.3.7. 3.3.6 Dimension and Configuration 3.3.6.1 Physical Characteristics. The LOC HE position within the overall Lube Oil Cooler assembly is shown in Figure 1. The LOC HE (Core) shall be designed to fit into the existing LOC assembly. The LOC HE (Core) shall be designed with mounting bolt patterns as shown in Figure 2 (top pattern) and Figure 5 (bottom pattern). The Inlet and Outlet connections mounting pads data are provided in Figure 3. The pre-heater (Government owned and installed) position is specified on Figure. 1. LCAC Heat Exchanger, Figure 5 shows the bottom view of the LOC HE (Core) including the required bolt pattern. 3.3.6.2 Dimensions and Configuration. The LOC HE (Core) envelope dimensions shall be as shown in Figure 2. The LOC HE (Core) shall be designed to accept the existing pre-heater. The envelope dimensions of the pre-heater are shown in Figure 4. 3.3.6.3 Unit weight. The LOC HE (Core) shall not exceed 250 lbs. 3.3.7 Environmental Conditions. Environmental conditions shall be evaluated in accordance with the applicable requirements of MIL-STD-810 as identified herein. The Lube Oil HE (Core) shall be designed to operate in the following environments with no permanent degradation of performance: a. Humidity. Zero to 100 percent relative b. Fungus. No fungus detrimental to the assembly c. Salt spray. Salt sea atmosphere containing seawater mixture, with salinity ranging from fresh water to 50 parts per thousand. d. Sand and dust. In operating and non-operating conditions, exposure to sand and dust particles in a concentration equivalent to 100 milligrams coarse dust per cubic foot of air. e. Vibration. In accordance with MIL-STD-810 Rev E, Method 520.2, Procedure two, Table 520.2-II. f. Inclination. + 45 degrees about any two orthogonal axes. g. Noise. Deleted h. Shock. Deleted i. Acceleration: Up 7.0g Down 3.5g Lateral (both directions) +2.0g Accelerations are limit loads to which safety factors of 1.0 and 1.5 are applied for yield and ultimate design respectively. Verification that the loads satisfy acceleration requirements shall be accomplished by analysis or test. j. Temperature. See paragraphs 3.3.1 and 3.3.2 3.3.8 Design and Construction Drawings. The LOC HE (Core) design shall be provided on an assembly drawing, which incorporates sectional views that completely identifies the design, materials and components used. 3.3.9 Special Tooling. Special tooling is discouraged. However, if necessary, it must be identified to the government with estimated cost and written justification for usage. Special tools and equipment shall not be used without prior written Government approval. 3.3.10 Materials, Processes, and Parts. 3.3.10.1 Material Selections. LOC HE (Core) components shall be constructed of corrosion-resistant materials. The use of Copper is authorized for LOC HE (Core) components. However, free machining grades of copper and copper grades containing more than 0.05% lead shall not be used. The LOC HE (Core) , fins and tubes shall be constructed of materials with a minimum thermal conductivity of 0.90 cal/cm2 cm x s x 0C. Aluminum alloys shall be 5000 or 6000 series material. Aluminum casting alloys shall be A356-T6. Corrosion-resistant steel shall be 300 series (except 303). Fasteners shall be corrosion resistant steel. 3.3.10.2 Material Selection Restrictions. 3.3.10.3 Magnesium and Magnesium Alloys. The use of magnesium and magnesium alloys shall not be used. 3.3.10.4 Non-metallic. O-rings and fluid seals shall be compatible with applicable design requirements. Non-metallic materials shall be resistant to high temperatures, to specified lubricating oils, marine environment and direct sun light. 3.3.10.5 Processes. Dissimilar metals, as defined in MIL-STD-889, shall not be placed in direct contact with each other, unless suitably protected against galvanic-corrosion effects. All fasteners shall be wet assembled using sealant per MIL-PRF-81733 Type I. 3.3.10.6 Passivation of Corrosion-Resistant Steel. Corrosion-resistant steel shall be passivated per ASTM-A967 or procuring activity-approved equivalent. 3.3.10.7 Hazardous material. No mercury or mercury-containing alloys and cadmium or cadmium plating shall be used. 3.3.10.8 Inlet and Outlet Connections. The lube oil inlet and outlet connections shall be flanged connections in accordance with MS33786-40, see Figure 3 and Figure 4. 3.3.11 Parts. Standard and commercial parts shall be incorporated in component designs to the maximum extent possible. 3.3.12 Identification Plate. Identification plates for the LOC HE (Core) shall be provided. Identification plates shall conform to A-A-50271. The marking color shall be natural on a black background. One or more identification plates may be used to convey the required information. Identification plates shall be attached to the appropriate housing via flush bolts or rivets in a location where each plate is visible. Identification plates shall include serial number, manufacturer?s name, date of manufacture, contract number, model number, and performance characteristics define in section 3.3.1. 3.3.13 Workmanship. The LOC HE (Core) shall be free from cracks, burrs, sharp edges, and foreign matter, and shall be of uniform appearance. All welding and mechanical joining shall be free of cracks, breaks, and burrs. 3.3.14 Metal Fabrication. Metal used in fabrication shall be free from kinks and sharp bends. The straightening of material shall be done by methods that will not cause injury to the material. Corners shall be square and true, and flanges shall be parallel and smooth. All bends shall be made by controlled means to ensure uniformity of size and shape. External surfaces shall be free of burrs. Sharp edges and corners that present a personal safety hazard or potential damage to equipment during usage shall be suitably protected or rounded. 3.3.15 Bolted Connections. Bolted connections shall be in accordance with SAE J429. Bolt holes shall be accurately formed and shall have the burrs removed. Washers shall be provided where necessary. Matching thread fasteners securing bolts shall be of sufficient strength to withstand the tensile strength of the bolt. Threaded inserts shall be used when threading directly into aluminum alloys. Fasteners shall be correctly torqued and shall have full thread engagement. 3.3.16 Riveted Connections. Rivets shall fill the holes completely. The upset rivet heads shall be full, neatly made, concentric with the rivet holes, and in full contact with the surface of the member, and shall be in accordance with SAE J492. 3.3.17 Welding and Welders. Welding shall be in accordance with AWS D1.1, AWS D1.2, or ASME Boiler and Pressure Vessel Code, MIL-STD-278 as applicable. The contractor shall provide certification that each welder or welding operator is certified in accordance with AWS D1.1, AWS D1.2, or ASME Boiler and Pressure Vessel Code, as applicable. Contractors who only make horizontal welds need not qualify welders for ?all position? welding. Certification shall be made available for review by the contracting officer or designated representative. 3.3.18 Brazing. Brazing shall be in accordance with AWS B2.2 or ASME Boiler and Pressure Vessel Code, as applicable. During the brazing operation, care shall be exercised to protect all components from deformation and damage. Flux shall not be present in the lubricant flow lines. Heavy beads and fillets of braze material shall be avoided in order to avoid restriction of air or lube oil flow through the heat exchanger. 3.3.19 Human Performance and Human Factors Engineering (HFE). HFE criteria to be applied, and shall meet MIL-STD-1472 and shall conform to MIL-HDBK-46855. 3.3.20 Safety. The LOC HE (Core) design shall meet the intent of MIL-STD-882 in providing safety for operations and personnel and shall be designed so that under all conditions of normal use, installation, operation, maintenance and under a likely fault condition including human error, it protects against the risk of injury. Hazards shall be eliminated or reduced to the lowest risk level practicable using methods in the following order of precedence: design, incorporation of safety devices, warning and caution label plates, and procedures and training. Catastrophic or critical hazards shall not rely solely on warnings, cautions, or procedures and training for control of risk. The following shall be incorporated into the LOC HE (Core) design: a. The equipment shall provide maximum access and safety to personnel during installation, operation, and maintenance. b. The LOC HE (Core) shall be designed so that it can be removed, handled, and lifted safely. 3.3.21 Simplicity of Design. The LOC HE (Core) shall represent the simplest design consistent with functional requirements and expected service conditions. It shall be capable of being operated, maintained and repaired in its operational environment by personnel with a minimum of training. The system shall be design to accommodate for easy access, repairs and modifications by the fleet maintainers. 3.3.22 Ruggedness. The LOC HE (Core) shall be sufficiently rugged to withstand field operation, maintenance, and transport within a marine environment. 3.3.23 Durability and Maintainability. The LOC HE (Core) shall be designed to facilitate access for maintenance to the maximum extent. The LOC HE (Core) shall be designed to permit the use of effective cleaning procedures with no disassembly. Access shall allow fire main fresh water flushing of cooling surfaces. Drains shall be provided to eliminate standing water accumulation. 3.3.24 Visual and Dimensional Inspection. Each LOC HE (Core) shall be subjected to a thorough visual and dimensional inspection to ascertain that the materials, workmanship, and construction are in accordance with requirements of this specification and related drawings. 3.3.25 Configuration Control. Proposed changes from the First Article (FA) configuration shall be submitted to the Government for evaluation. Changes shall not be implemented without prior written Government approval, see Section 6. FOR A COMPLETE ITEM DESCRIPTION CONTACT THE CONTRACTING OFFICER LISTED ABOVE.
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