Abstract
The absence of mechanical mixing devices and perfect heat and mass transfer and intensive aeration of the working fluid significantly increase the productivity and quality of the technological process, which determines the relevance of the studied problem. The aim is to increase the productivity of the technological process, which is solved by intensifying heat and mass transfer throughout the apparatus by remote artificial formation of the resonant state of the culture medium and the energy activity of the working fluid generated by this state. The task of the work is the artificial formation of the energy activity of the working fluid in the bioreactor using an ultrasonic beam. The research methodology is based on classical methods of theoretical mechanics, methods of mathematical physics, theory of thin shells, which ensures the reliability and reliability of the results. One of the possible technical solutions of artificial formation of energy activity of the working fluid in the bioreactor by means of an ultrasonic beam is given. The conditions for the occurrence of wave coincidence, which is accompanied by a sharp increase in energy activity along with minimal dissipation of radiation waves, are outlined. The nature of additional energy activity in the zones of caustic surfaces by two types of waves is explained. The process of culturing organisms, like most heterogeneous chemical reactions, directly depends on the amount of gas dissolved in the liquid and the formation and accumulation of the target product, in particular biomass. Thus, increasing the degree of dissolution of the gas in the liquid phase of the reactions will reduce its consumption and reduce energy consumption for aeration. The constructed calculation schemes and the received results allow to estimate adequacy of theoretical decisions by initial assumptions and, thus, to confirm their expediency for the further practical realization. The spatial resonance created inside the housing by ultrasonic emitters turbulizes the entire liquid-phase component of the housing and causes the gas bubbles to move without hindrance not only upwards, but also in other various directions, keeping them longer in the working fluid, thus enriching the mixture. creating conditions for intensive cell growth.
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