Portable Air Temperature Conditioning System

The Naval Air Warfare Center Aircraft Division, Patuxent River, Maryland has a requirement for a PORTABLE AIR TEMPERATURE CONDITIONING SYSTEM in accordance with the following Statement of Work. STATEMENT OF WORK PORTABLE AIR TEMPERATURE CONDITIONING SYSTEM PID 1300171117 1. SCOPE: The Propulsion Systems Evaluation Facility has a need for a self-contained, recirculating portable air temperature conditioning system capable of continuously providing hot or cold air to a test chamber via connecting ducts. 2. QUANTITY: one (1) portable air temperature conditioning system fully assembled and ready for installation. 3. REQUIREMENTS: The portable temperature conditioning system shall meet the following requirements: a) Temperature: a. Hot: ambient to 350 degrees F (maximum) (using electrical resistance heater) b. Cold: ambient to -100 degrees F (minimum) (using liquid nitrogen injection) c. Rate of change: 18 degrees F per minute when changing temperature set points d. Temperature set point stability: - 3 degrees F or better b) Flow Rate: 700 standard cubic feet per minute (minimum) against a 2 inches of water static pressure c) Console: a. Depth: 42 inches (maximum) b. Width: 36 inches (maximum) c. Height: 72 inches (maximum) d. Air inlet and outlet openings shall be designed for attaching a Government owned 6 inch inside diameter flexible. e. Caster at each corner (bottom) for rolling f. "eye" hook at each corner (top) for lifting g. External panels: Constructed from 16 gage sheet metal, cleaned, primed and painted; the interior of panels shall be lined with 0.25 K factor non-settling insulation; panels shall be removable for access for servicing equipment; panels seams should be sealed to prevent migration of moisture into the insulation area. h. Internal air chamber: Constructed from corrosion proof material i. Internal hardware and equipment: Constructed from corrosion proof material j. Surface mounted control indicators, switches, displays and monitors are clearly labeled d) Electrical: a. 460 volt, 3 phase, 60 hertz electrical power b. Master power "on/off" switch with easy access for customer connection to electrical power. c. Heavy duty fan and motor designed for industrial applications. d. e) Heating capacity: a. Electrical resistance heater; 6,000 watts (minimum) b. The electrical current to the heater shall be adjustable to establish the required temperature set point f) Cooling capacity: a. Direct injection of liquid nitrogen into the air stream to be conditioned, 50,000 BTU/hr cooling (minimum) (Government will provide the liquid nitrogen.) b. The liquid nitrogen flow rate shall be adjustable to establish the required temperature set point g) Control systems and displays a. Heating: A programmable controller shall be used to establish a discharge air temperature set point. The controller shall monitor, track and adjust the resistance heater setting as needed to maintain the set point temperature. The test operator shall have the capability to change up or down the temperature set point while the system is operating. The temperature setpoint shall be sensed via remotely located thermocouple in the process air stream. Over-temperature safety limit with alarm: control shall monitor the discharge air temperature and if it exceeds the manufacturer's equipment temperature limits the controller shall shut the heater off to prevent damage to the equipment and sound an alarm. b. Cooling: A programmable controller shall be used to establish a discharge air temperature set point. The controller shall monitor, track and adjust the liquid nitrogen flow rate as needed to maintain the set point temperature. The test operator shall have the capability to change up or down the temperature set point while the system is operating. The temperature setpoint shall be sensed via a remotely located thermocouple in the process air stream. c. Displays: Main power "on/off", heating system "on/off", cooling system "on/off", set point temperature, discharge air temperature and pressure h) Documentation a. Operation manual (2 - hard copy, 2 - R-DVD) b. Portable temperature condition system drawings electrical and mechanical (2 - hard copy, 2 - R-DVD) i) Warranty a. One (1) year parts and labor PORTABLE TEMPERATURE CONDITIONING SYSTEM EVALUATION: The quotation will be evaluation on the following factors: TECHNICAL, PRICE, DELIVERY and PAST PERFORMANCE. All factors are of equal importance; however the Government reserves the right to make an integrated evaluation resulting in the best value to the Government, price and other factors considered. - TECHNICAL: Please provide commercial brochures/literature for the quoted Portable Temperature Conditioning System, and other information sufficient to show how the product meets or exceeds all of the Government's minimum technical requirements/specifications as provided herein. - PRICE: Please provide a Firm Fixed Price per unit including all discounts which may be applicable. Pricing shall include FOB destination terms to NAWCAD, Patuxent River MD 20670. - DELIVERY: Please specify a date for delivery of all items, after receipt of a written purchase/delivery order. - PAST PERFORMANCE: Please provide information on two recent, within the last two years, contracts or purchase order numbers for same or similar products. Include a customer end-user point of contact and phone number for each contract/purchase order provided. The Government may evaluate general customer satisfaction with the product, on-time delivery, ease of warranty claims and any other information determined by the Contracting Officer regarding the Contractor's ability to deliver a quality product. The Government reserves the right to obtain Past Performance information from any source and not solely from the information provided by the Contractor. Responses must be received by 0800, 08/16/2010. The Government will not pay for any information received. Facsimile proposals are acceptable. For information contact Donna Giovenco, Code 2.5.1RAC, email: contact@example.gov