a) A turbine powered by steam;
b) a mechanic device made of two metal strips in contact (brass and iron, for example). Brass has a higher coefficient of expansion than iron. When the temperature changes, the bimetallic strip will bend up or down, depending on the direction of temperature change, doing useful, hopefully, mechanic work. Examples are fire alarms or thermometers.
c) a thermocouple will convert heat directly to electricity, and hence mechanical work via an electromagnet.
d) a Hot air balloon may fill the bill, but in an intermittent action. (As is the bimetallic).
or just a "heat engine"
steam engine
heat engine
Almost every mechanical device converts some of its mechanical energy to thermal energy. Some examples I can think of at the moment are: -- drill bit -- saw blade -- file
An engine.
A device that converts electric energy into thermal energy. A device that regulates the temperature of a system. A device that uses electric energy to transfer thermal energy from a cooler location to a warmer location. A machine that converts thermal energy into mechanical energy.
The rocket engine is the device that converts chemical energy into the mechanical energy. A firecracker also converts chemical energy into mechanical energy.
steam engine mechanism.(converts thermal energy to mechanical.)
mechanical energy
The internal combustion engine converts chemical energy into mechanical energy to make a car move. The chemical energy in gasoline and water are converted into thermal energy. This energy causes the pressure that forces the pistons to move. The pistons transform the thermal energy into mechanical energy.
motor
Thermal Energy
Thermal Energy