Simulation calculation of compressor cooler

The heat exchangers I have used in this working condition should be considered the most examples I have come across. The original poster posted a thread and what aspect do you want to discuss? Be specific. Otherwise it’s too general and I don’t know where to start.

Nothing else. In fact, I have been working on compressor coolers and would like to share my experience in cooler process calculations. Specifically, it is mainly about the use of HTRI to deal with the heat released by the saturated water condensation of the mixed gas. If you are interested, let’s discuss it together.

For the design of the rear-stage cooler of this type of compressor, we simply discuss the problem of precipitation of saturated liquid in the mixed gas. Manual calculations only need to pay attention to the values ​​of the three phases.: That is, the determination of the partial pressure, temperature, specific heat and other parameters corresponding to the initial state (inlet) of the mixed gas. The intermediate state is the physical property parameter of each gas component at the critical point, and the final state is the physical property parameter of each gas component in the supercooling section defined by the user. Simply using HTRI must verify the above three-phase parameters and input them after obtaining the average value. However, there are errors and it is laborious. Not recommended for multi-component gas mixtures. Usually, the rear-stage cooler of a conventional air compressor can still be operated so simply.

Thank you upstairs! About the analysis of interstage cooling water in multi-stage compressors: If the compressor inlet gas contains water vapor, after the gas is compressed, the partial pressure of the steam will increase, and then it is cooled in the cooler. When the compressed steam partial pressure exceeds the saturated vapor pressure of water corresponding to the cooler outlet temperature, the steam in the gas will condense and precipitate water. The heat released when water vapor is cooled and partially condensed. In a multi-stage compressor, the calculation of the first four stages cannot be ignored. In manual calculations, the saturated vapor pressure corresponding to the temperature of the cylinder suction nozzle of the corresponding stage of the cooler and the gas outlet of the cooler is used. In the HTRI software, how is the temperature of the suction nozzle of the cylinder of the corresponding stage of the cooler reflected?