👉 The worked fluid, also known as the process fluid or working substance, is a material used in engineering and thermodynamic systems to transfer energy through heat and work. It can be a liquid, gas, or even a mixture of these states, and its primary role is to absorb heat from one part of a system and transfer it to another, thereby facilitating processes like power generation, refrigeration, or mechanical work. The properties of the worked fluid, such as its specific heat capacity, thermal conductivity, and phase change characteristics, are crucial in determining the efficiency and performance of the system. Common examples include water, steam, air, and various hydrocarbons used in internal combustion engines.
