The throttling process is a thermodynamic process where a fluid's pressure is reduced without performing any work or heat exchange, often resulting in a temperature change. It is an isenthalpic process, meaning the enthalpy remains constant throughout the process, commonly used in refrigeration and air conditioning systems.
A steady-state flow process is a condition in which the fluid properties at any given point in the system do not change over time, ensuring that the mass, energy, and volume flow rates remain constant throughout the system. This concept is crucial in engineering applications for simplifying the analysis of fluid systems, as it allows for the assumption of time-invariant conditions, leading to more straightforward calculations and predictions.