Sankey Diagram Heat Engine. If you want to convert the heat to useful work some sort of engine must be designed. Energy transfer diagram for a car engine figure 10.
This is simply a heat engine operated in reverse. The width of the arrows demonstrates the amount of energy. A sankey diagram heat engine usually gives specifics of the relative position and arrangement of units and terminals within the units to assist in developing or servicing the system.
Sankey diagram for a filament lamp energy can be transferred usefully.
The sankey diagram used in the chapter is illustrative of efficiency loss but most modern engines have improved significantly on the useful power and the best are now just over 50 with potential to increase using waste heat recovery. Sankey diagrams which are typically used to visualize energy transfers between processes are named after the irishman matthew h. That is contrary to a schematic diagram where by the arrangement of the factors interconnections to the diagram typically doesnt correspond towards the elements physical. If you want to convert the heat to useful work some sort of engine must be designed.