👉 Reject fluid, also known as reject air or reject gas, is a phenomenon in fluid mechanics where a portion of the fluid entering a system, such as a pipe or a compressor, is not fully compressed or mixed with the working fluid. This typically occurs when the flow rate exceeds the system's capacity to handle the fluid, leading to turbulence and mixing with the working fluid. As a result, the fluid that is rejected does not participate in the desired process, such as energy conversion or heat transfer, and can reduce the efficiency of the system. Managing reject fluid is crucial for optimizing performance in applications like gas turbines, refrigeration cycles, and other fluid dynamic systems.
