What is a device that converts heat energy into mechanical energy?

Answer 1

biomass burns garbage?

-that is wrong cuz my teacher never said anything about biomasses and garbages

that's wrong because my teacher said something else and that's just wrong

An internal combustion engine. i.e. that thing that makes your car go vroom

Answer 2

I assume you mean to ask about things other than steam engines, and further assume that you have some idea of how conventional electrical generators work. Geo-thermal energy can be directly converted into mechanical energy by means of a belt (like the ones attached to your car's engine) if that belt is made of a shape-memory alloy like Nitinol (an alloy of nickel and titanium). This alloy changes its structure (and shape) depending on the temperature. But you have to train it so that it takes one shape during "hot" and another during "less hot." Shape-memory alloys (SMA's, for short) are used as actuators in many important applications, like sprinkler systems. They are not used for power generation mostly because it requires more energy to make them than you'd ever get by using them. (Like everything, they wear out.)

Answer 3

Any device that converts heat energy into mechanical energy has the generic name "Heat engine."

There are many examples but a two are really important, steam and gas engines.

1. The most famous and old heat engine is the steam engine.

In that case, heat from a fire boils water to make steam which has enough pressure to drive a piston that does work.

2. More recently, the gasoline engine was invented.

Gasoline burns in a cylinder, creating more gas and heat which causes pressure that pushes on a piston. That force times distance is work and so mechanical energy.

3. A thermocouple is an interesting little device that generates electric potential energy from a difference in temperature and that electric energy can then be converted into anything else, including mechanical energy.

4. There are examples of devices where heat from the sun is used to heat a gas that then acts on some sort of piston to produce mechanical energy.

5. Geothermal energy can be extracted from the Earth and used to drive a steam engine, or the more modern version which is a turbine.

Historically, the steam engine was the "heat engine" that generated a great deal of scientific effort and furthered the development of thermodynamics.

Answer 4

A heat engine, a common example is a steam turbine

Answer 5

it is an electric motor

Answer 6

a steam locomotive

Answer 7

thermal energy

Answer 8

A bi-metallic strip, used in thermostats.