Based on the excessive water droplets, it is assumed that the gas-water heat transfer is sufficient during the compression process, the wet air is always saturated, the relevant mathematical model is established from the thermodynamic point of view and the numerical solution is obtained, and the more accurate results are obtained, which is the water-jet vortex air compressor. Further research provides a theoretical basis. Mathematical model fluid machine, the basic assumptions (1) The humid air is always saturated during the compression process, that is, the partial pressure of water vapor in the humid air is equal to the water vapor saturation pressure at the same temperature; (2) the mixture of air and a small amount of water vapor Wet air is an ideal gas, and the internal state parameters are uniform; (3) the gas and water in the compression chamber are well mixed, the mixed medium is in a uniform state, and the volume of water is neglected; (4) the influence of leakage on the performance of the compressor is ignored; (5) The heat exchange between the gas and the water is calculated and completed in an instant, regardless of the heat exchange between them and the wall; (6) the temperature difference between the end temperature of the compression and the temperature of the exhaust gas is ignored.
Effluent Evaporation A numerical simulation of the water vapor evaporation internal combustion compressor is an important aspect of establishing a water droplet evaporation calculation model. Previous models usually assumed that there was a difference in water vapor temperature during compression, and the heat transfer model was established based on the partial pressure of water vapor and the pressure difference of saturated steam. The established droplet evaporation model can be uniformly expressed by the following formula: According to the established heat transfer model, the following model: The above model often requires a large error due to the assumption of the diameter of the water droplet. The research in this paper is based on the excessive water droplets, so the assumption that the humid air is always saturated during the compression process is proposed. According to the assumption, the moisture content of the wet air is obtained: the evaporation of the droplets is calculated according to the Fors-tKalkwar-fThods vapor pressure equation: Thermodynamics of the compression process of 21212 The model takes any pair of closed volumes as the control volume, applying the first law of thermodynamics and the law of conservation of mass. The inhalation temperature T is numerically solved based on the previous mathematical model, and the value of the end temperature of compression, that is, the exhaust gas temperature under different water spray amounts and different spray water temperatures can be obtained.
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