Voloshyn S. 3. The electrothermomechanical drive of systems of natural ventilation for the protected ground on the basis of the shape memory

The dissertation is devoted to a problem of increase of reliability and energy efficiency systems of natural ventilation for constructions of the protected ground. In the dissertation systems of natural ventilation of constructions of the protected ground and the drives used in them are analyzed. The analysis of traditional and alternative drives of the systems of natural ventilation of constructions of the protected ground is conducted; construction of the electrothermomechanical drive is grounded on the basis of the shape memory alloy (SMA) the systems of natural ventilation of constructions of the protected ground and certain to dependence for the calculation of his parameters; the experimental research of the driving elements from SMA and an electrothermomechanical drive is lead; efforts are certain to dependence from a temperature and parameters of drive element, specific effort is certain, that is generated by unit of volume of SMA at heating on 1 ?С; industrial tests of an electrothermomechanical drive have shown efficiency and reliability of the offered decisions; the functional-cost analysis of an electrothermomechanical drive lead with the purpose of definition of function of components of a drive and charges on their realization