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Typical engine dynamometer test cell example. 

"This is a generic test-cell layout showing many of the components needed to build a high-end engine-dyno facility."

Hover over any (question-marks) in the image below, to see more information about that specific illustrated item. Clicking on some of these icons opens another relevant page.

See “Water Supply Tanks and PumpsTech-Talk article for the basics of selecting water supply tanks, and pumps, for engine or chassis dynamometer test cells.


Click to jump to "Water Supply and Pumps" Tech-Talk article
Water-Brake Absorber: Water-brake dynamometer absorbers are the most cost effective loading devices available for engine testing. They offer an affordable way to build your own, state-of-the-art, industrial-duty dynamometer.
Air Compressor: Air-compressor and storage tank provide regulated air for pneumatic service tools and other equipment - in both test cell and general shop. Locating compressor in sound-proof cell reduces shop noise.
Engine Cooling Tower: Cooling-tower assemblies provide thermostatic controll to maintain precise engine temperature with minimal water usage. They gradually mixe in cold water to regulate block temperatures – without creating thermal stresses in the engine.
Load Control Valve: Manual or electronic servos valves control the absorber's fill level (loading) during testing. Automated valves allow for convenient, one-handed throttle operation, even during complex automated dynamometer test sessions.
Fuel Tank: Small-volume fuel cell provides safe storage of test fuel. Optional siphon-feed refill piping (with saftey vacuum break) to outdoor storage system – allows for extended-duration testing.
Centrifugal Supply Pump: High-volume low-pressure pump delivers 40 to 60-PSI to load control valve. Inexpensive lawn-sprinkler-duty pumps are well suited to this purpose.
Absorber Return Line(s): Unsubmerged drain line(s) from absorber to sump tank or city sewer. Line must gravity drain but not siphon water from absorber.
Water-Pressure Regulator: Very-high-volume pressure reducing valve limits pressure to load-control valve to 60-PSI maximum. Do not attempt to utilize an (inexpensive) standard-flow model, as its pressure drop will reduce the absober's capacity and control.
Sump Pump: High-volume high-temperature sump pump - used to transfer absorber discharge water from a small gravity-drain tank to a verticaly-higher main supply tank.
Bladder Surge Tank: Air-charged bladder tank, prevents "water hammering" as load control valve rapidly opens and closes. Also acts as reserve capacity for short-term flow demands.
Supply-Water Tank: Unpressurized water storage tank (or city water/sewer hookup) provides sufficent cold-water supply for intended engine power (BTU/hour) "absorbtion."
PC Cameras: Networked cameras provide extra control-room eyes, with optional recording, into test cell activities. Spot problems before they happen!"
Sound-Bloc Wall: Sound-absorbing acoustical-lined chambers in thick (8"-12") concrete block and sand-filled cores, provide great sound attenuation, reduced echoing and excellent fire rating."
Windows: Sound-rated windows feature multiple panels of thick (1") laminated fire-rated safety glass with solid-concrete filled steel frames. Fill all air (sound) passages with high-density sealant.
CO Detector: Carbon monoxide alarm digitally monitors the cell's CO levels and sounds an alarm above safe limits. Place low to floor for earliest warnings against dangerous exhaust leaks.