Inactive
Total Small Business Set-Aside (FAR 19.5)
Notice ID:68HE0M21R0001
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY OAR NVFEL SACO 2565 Plymouth Rd Ann Arbor, MI 48105 PRE-SOLICITATION NOTICE FOR HEAVY DUTY ENGINE DYNAMOMETERS FOR NVFEL SYNOPSIS The U.S. Environmental P...
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY OAR NVFEL SACO 2565 Plymouth Rd Ann Arbor, MI 48105 PRE-SOLICITATION NOTICE FOR HEAVY DUTY ENGINE DYNAMOMETERS FOR NVFEL SYNOPSIS The U.S. Environmental Protection Agency (EPA), National Vehicle and Fuel Emissions Laboratory (NVFEL), Testing and Advanced Technology Division (TATD), located in Ann Arbor, Michigan, intends to purchase a Heavy-Duty Engine Dynamometer replacement for HD-5 with the option to relocate and install old HD-5 dynamometer to HD-1, option for dynamometer controller, and option for torque sensor. The acquisition of this Commercial item will be set-aside as a total small business and will be processed in accordance with FAR Parts 12, 13, & 17. The North American Industry Classification System (NAICS) code is 334516 ¿ Analytical Laboratory Instrument Manufacturing with a size standard of 1,000 employees. The Product Service Code (PSC) is 6640: Laboratory Equipment and Supplies. The purpose of this procurement is to provide a dynamometer, transformer(s), controller, instrumentation, and related hardware and software (¿System¿) that extends the existing range of EPA¿s heavy-duty engine compliance testing capability to include larger and more powerful engines than are presently testable while preserving the low-power end of our existing capability. The engines to be tested are primarily on-road and non-road diesel engines in the 150-500 kW range. The System must be installed in NVFEL¿s Heavy-Duty Engine Test Site #5 (HD5). The System must comply with 40 CFR Part 1065 and the statement of work. The EPA NVFEL plans to enhance the capability of engine testing operations to include a broader range of engines. There is a need to examine the compliance of larger diesel engines. These are primarily on-road and nonroad diesel engine applications and are used in (for example) heavy-duty trucks, vocational vehicles, agriculture equipment, construction equipment, generators, and marine applications. Gasoline engines may also be tested. These engines are regulated under 40 CFR parts 86, 1036, 1039, 1042, 1045, and 1048. The dynamometer must consist of a single absorber and must not employ any type of gearbox to alter its torque/speed characteristics. The dynamometer used must be AC type and must utilize the latest technology in variable frequency, vectored, line regenerative, AC motor-absorbers that have been interfaced with a correctly designed and responsive torque, speed, and throttle measurement and control system. Power absorption must be regenerative, wherein the generated power is delivered to the NVFEL building power grid. The dynamometer control circuits must be designed and installed in such a way as to prevent any power from being sent to the building grid if normal facility power is lost. The dynamometer control systems must not feed damaging or detrimental electrical noise into the power grid. Electromagnetic fields (EMF) caused by the dynamometer must be controlled or suppressed to prevent any interference to the test engine, auxiliary equipment, cell instrumentation, dynamometer electrical/electronic systems, or the rest of the building. The dynamometer must be protected from uncontrolled acceleration. The System must feed generated electrical power back to the electrical grid via a switching device or safety lockout that will isolate the dynamometer from the grid in the event of a power failure. The System must also feature current limit protection to prevent system damage from power grid faults of short duration (<20 ms). The System must not feed damaging or detrimental electrical noise into the power grid, and must meet the noise and harmonic distortion requirements of IEEE-519 standards. Upon activation of an emergency stop (E-Stop), the dynamometer must be ramped to zero speed before the drive system power is interrupted. The dynamometer must reach zero speed within three seconds of E-stop activation. An E-stop must be installed in or on the HD5 control room¿s equipment tower in a location that is within easy reach of a test cell operator while seated at the console. The safety string circuit must be interrupted by a relay that stops all test cell systems. There must also be a feedback to notify the operator what exactly caused the shutdown. A speed encoder must be provided and installed and must provide readings of speed and means to effect calibration. The encoder must provide an instantaneous indication of direction of rotation. The encoder must be drift-free, require no analog calibration, and must determine speed within 10 ms of true occurrence. Indicated speeds between 50 RPM and the maximum speed of the dynamometer must be accurate to within < = 1 RPM and must have an output resolution of 1 RPM or finer. The encoder must also correctly indicate zero RPM. Provide and install a contactless, non-rotary in-line transformer torque transducer and associated measurement system. The range must be appropriate for the engines, with adequate over-range to prevent sensor failure due to torque spikes. Antennae, amplifiers, cabling, and any other hardware or software needed to make the system fully functional must be provided and installed by Contractor. This device must be interfaced with HD5¿s current host/automation system, providing readings of torque, and a means to effect calibration. If the in-line torque transducer does not feature a bolt pattern that facilitates the installation of driveshafts with a Dana-Spicer 1810 flange, then Contractor must provide and install, on the torque transducer, an adapter that facilitates the installation of driveshafts with a Dana-Spicer 1810 flange. Any such adapter must be designed with good engineering judgment to minimize rotating inertia while ensuring adequate strength and durability to tolerate the peak and cyclic loads encountered during normal starts (using the dynamometer to start the engine), emergency stops, and long-term operation at high loads. Provide a calibration system, including weights and a lever arm, to calibrate the torque measurement device. The calibration system must meet the requirements specified in 40 CFR parts 1065.307 and 1065.310. The calibration system must include all hardware and software needed to meet all requirements of the acquisition. Provide a reusable container for shipping the calibration weights to offsite calibration service providers. This container must include all features necessary to secure and protect the calibration weights against damage due to reasonably foreseeable events encountered in the course of such shipment. All measurement devices that contribute to final test results, or to verify that test conditions meet regulatory requirements, must be calibrated in a manner consistent with 40 CFR Parts 1065. Calibration must be made and documented in a manner that is traceable to the National Institute of Standards (NIST). Calibrations certificates or reports demonstrating traceability for all devices must be provided to EPA and must meet the associated content requirements of ISO 17025-2017. Consideration will be given to vendors who can provide ISO-17025-2017-accredited calibration documentation. Traceability to other national metrological institutes that are recognized as equivalent by NIST will be acceptable. The System must include dynamometer bearing vibration switches and bearing temperature monitoring and must track total operating hours. Consideration will be given proposals that feature data logging of these signals by the site¿s host automation system. The installed controller must be integrated into the HD5 host automation system so as to facilitate transient and steady-state engine test cycles. The dynamometer must be fitted with a plaque clearly listing rotor inertia and maximum speed and torque rating. The plaque must be securely installed on an easily viewable surface of the dynamometer and must be of a form that will resist damage by oil or wear, such as embossed metal plate. Supplied hardware used in this System or for its installation must be new. Throttle controller/amplifier/servo as an installed and integrated system, including all necessary hardware and software, to provide two modes invoking engine throttle or fuel demand. A means must be provided to operate a servo to physically move a throttle arm or equivalent mechanical device, and a method must be provided to generate an analog voltage or pulse width modulated command signal, to command set points to an engine control computer for electronically-controlled engine systems. The servo controller must include all necessary mounting fixtures, hardware, cabling and adjustable linkages to facilitate attachment to a wide range of injector racks, throttle potentiometers, or other fuel metering devices. The servo controller must be mounted on a free-standing pedestal that can be repositioned on the bedplate as needed by the test cell operator. This system must move any fuel metering device from closed to fully open position (90 degrees) in 0.25 seconds or less and must exert a torque of at least 45 inch-pounds. The servo must automatically return to closed or 0% throttle position with the same force, if power is interrupted to the actuator. The actuator must self-calibrate its travel as a percent of wide-open throttle (WOT) and must adjust feedback signals to assure tunable response and a stable fixed throttle holding action. A signal must be provided for enabling the test site¿s existing host/automation system to continuously record the actual throttle position (xx.x% of WOT). The servo and attendant amplifier must be installed in the HD5 test cell, along with all hardware, wiring and sensors needed to make the system fully functional, and must facilitate efficient manual repositioning by the test cell operator All electrical connections and mechanical linkages must feature disconnects at both ends to facilitate removal of apparatus from test cell. The mode of dynamometer and throttle operation (speed/torque) must be switch-selectable by the operator or selectable by the site¿s host automation system, with the selection of a new mode disabling the previous mode. All transfers must be ¿bumpless.¿ The engine and dynamometer control systems, throttle controllers and other components delivered under this contract must function together as a system to provide transient control of the engine and dynamometer in a manner which allows engine test results to meet the requirements of 40 CFR 1065.514. The speed and torque control loops must work together using system inertias and acceleration rates to provide an optimum response for both control loops. The dynamometer and engine control equipment must include user diagnostic screens and software features to assist operators with transient control tuning of the combination of the engine and dynamometer as a system to obtain adequate response. The full Statement of Work, which will be included in the solicitation, describes and sets forth all requirements for the heavy-duty engine dynamometer. Award will be made on a Best Value basis. The full solicitation should be issued on or about December 15, 2020 on FedConnect.net. This office does not intend to mail hard copies of the solicitation. Point of Contact for this requirement is Angel Taylor, Contracting Officer, at (734) 214-4745, or by email at Taylor.Angel@epa.gov or OARNVFELSACO@eap.gov. Questions must be submitted in writing to Angel Taylor or OAR NVFEL SACO via email with a subject line HD-5 Heavy-duty Engine Dynamometer. Telephone queries will not be honored.
