| Abstrakt: |
The article considers the urgency and necessity of using systems that allow to utilize the heat of steam-air mixtures as energy wastes. Different variants of utilization on the example of gas boilers as sources of a large amount of energy waste in the form of flue gases are considered, their drawbacks are highlighted. For a more profound utilization of the steam-air mixtures heat, the possibility of using a heat pump, as well as improving the system of automatic control of the process of utilization of the flue gases heat with a heat pump in the composition, is proposed for further increase of energy efficiency. A parametrized scheme of the process of flue gas heat recovery is presented. The results of experiments, on the study of the utilization process in the automatic mode on the physical model, developed by the authors are presented. The analysis of results is carried out. The structural identification of the process of utilization of heat of flue gases as a control object is carried out, the main control channels, cross-links between them, and the most influential perturbations are allocated. A structural scheme of the process is created as an control object. The parametric identification of the main control channels, cross-links and controlled disturbances was carried out, during which mathematical models of the main channels for transformation of coordinate actions were obtained. [ABSTRACT FROM AUTHOR] |
