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INSPIRATION The goal of this project was to provide a means of testing a standard IC engine that has been modified to run on both gasoline and steam. The idea is to inject water into the heated engine after it has been running on gasoline. The instantaneous vaporization of the water will provide an extra power stroke without the consumption of gasoline. This, in turn, should increase the efficiency of the engine. The test stand built in this project provides a means of testing such a modified engine. Customer Needs The test stand must: • measure performance parameters of engine (including power and torque) • log recorded test data • provide a user friendly graphical user interface • provide and control consumables (gasoline/water) • physically support the engine • measure cooling effect of water injection • run on standard 120V 20A wall outlet • be compatible with Kohler CH5 IC engine • be transported easily Position Sensor The engine position sensor consists of two Photologic Slotted Optical Switches. When the timing disk rotates, the signals received by the two switches enables the ECU to determine the position of the engines crank shaft as well as when to inject the water. The location of the switch controlling the engine speed is adjusted with a servo motor . Speed Control Lab View GUI Thermocouples are used to measure the ambient air, engine block, and exhaust temperatures. The voltage measured across a shunt resistor on the output of the electric motor is used to determine the engines power output. Optical sensors are used to determine the engine’s RPM. The engine speed is controlled with a servo motor. Special Thanks Leo Farnard Vincent Burolla Phil Vars Faculty guide Faculty guide Customer We@RIT Rob Kraynik Dave Hathaway Jan Maneti George Slack Chris Fisher Senior Mechanical Tech. ME Operations Manager Senior Mechanical Tech EE Lecturer/Advisor MSD Coordinator A servo motor is used to control the home position of the optical rpm sensor, this in turn adjusts the injection timing. Project Outcome The stroke mode control allows the operator to switch between 4 stroke (no water injection) and 6 stroke (water injection) mode on the fly. The engine’s speed control can be adjusted through the LabView GUI via the servo assemble that has been fixed to the engine. Team Steam The hybrid gasoline/steam engine test stand effectively measures engine power output and provides the necessary controls to properly adjust water injection timing for the prospective hybrid engine. The stand provides a sufficient test bed to aid a future MSD team in the testing of an IC engine that has been modified to run on both gasoline and steam. Trevor Deacon EE, Joe Koch ME, Tim Francis EE, Matt Figliotti ME, Dave Scott EE