Longmont, Colorado • Completed September 2002
Engine testing dynamometer facility supporting up to 1,000 HP testing. Project featured specialized acoustic design with sand-filled block walls, high-temperature exhaust systems, and computerized data acquisition.
Schendt Engineering was the prime consultant for this project involving design and installation of an engine testing dynamometer facility. The team included structural, electrical, and acoustical design consultants. Site verification was conducted to assess the as-built condition of the existing space, discuss requirements with the using agency, and obtain equipment data from the dynamometer manufacturer. The basic requirement was to develop the capability to test and monitor engines up to 1,000 HP with full operational control and data collection.
The facility was housed in an insulated metal building. Due to project location constraints, minimizing noise emissions was critical to meet zoning requirements. The acoustical consultant evaluation determined that meeting property line sound level requirements required several measures: construction of a sand-filled block wall around the space perimeter, installation of additional sound insulation in the ceiling, installation of acoustic doors and louvers, and sound attenuators on the exhaust ductwork. These comprehensive acoustic treatments ensured the facility met all regulatory sound level requirements.
The testing design required visual observation of engine exhaust from the control room. A hood over the engine collected exhaust from the engine manifold. The exhaust fan was rated for high-temperature applications and connected to a variable frequency drive controlled manually by the operator in the control room. An external cooling tower cooled the engine and dynamometer, with pumps located within the dynamometer space. A portable fuel storage system with quick-connect couplings supplied fuel to engines during testing, enabling safe and convenient fuel management.
A computerized data acquisition and monitoring system was installed in the control room, providing real-time monitoring of all test parameters. An observation window between the control room and dynamometer room allowed visual observation of engine operation during testing. The control room HVAC system consisted of a ceiling-mounted computer room air conditioner to maintain optimal space temperature for sensitive electronic equipment and personnel comfort during extended testing operations.
60,000 SF military maintenance facility HVAC upgrade serving vehicle, electronics, welding, and woodworking operations. Project addressed unique ventilation requirements and obtained code waiver for high-bay areas.
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