Heat and Work
Two primary classes of thermodynamic cycles are power cycles and heat pump cycles. Power cycles are cycles which convert some heat input into a mechanical work output, while heat pump cycles transfer heat from low to high temperatures using mechanical work input. Cycles composed entirely of quasistatic processes can operate as power or heat pump cycles by controlling the process direction. On a pressure volume diagram or temperature entropy diagram, the clockwise and counterclockwise directions indicate power and heat pump cycles, respectively.
Read more about this topic: Thermodynamic Cycle
Famous quotes containing the words heat and/or work:
“I have a faint cold fear thrills through my veins,
That almost freezes up the heat of life.”
—William Shakespeare (15641616)
“The most fitting monuments this nation can build are schoolhouses and homes for those who do the work of the world. It is no answer to say that they are accustomed to rags and hunger. In this world of plenty every human being has a right to food, clothes, decent shelter, and the rudiments of education.”
—Elizabeth Cady Stanton (18151902)