Last updated 3/25/06

(c) FSU/FAMU CoE

How it works:

Multiple processes can be powered using the waste thermal energy from the exhaust of an internal combustion engine. Once the engine is started, the rotating drive shaft turns the generator head, producing electricity. Exhaust produced by the engine is piped into the heat exchanger, where the water temperature from a reservoir is raised over time to boiling. Attached to the piping is the conduction rod, which conducts heat from the exhaust piping to the boiler of the absorption refrigerator, cooling the refrigerator interior.

Internal Combustion Engine

Generator Head

Absorption Refrigerator

Conduction Rod

Heat Exchanger

Minor System Components

Many minor system components contribute to the functionality of the tri-generation system, which are listed below:

Re-circulating Water Pump

Provides water flow of approximately 10gpm @ 2ft of head, withstands temperatures of to 100+ deg C

Water Reservoir

Insulated, reinforced fiberglass tank holds a maximum 20 gallons of water

Copper Tubing

1" diameter, type-L copper tubing provides cost-effective connection between major system components

Insulation

1" thick mineral wool and elastomer foam minimizes heat loss from piping system, water reservoir, and heat exchanger.

Instrumentation

Used to monitor system temperatures, engine speed, and generator output. Includes K-type thermocouples, timer, digital scale, and tachometer.

Control Panel

Provides mount for all instrumentation readouts and engine ignition and throttle