ЭФФЕКТИВНОСТЬ СОЛНЕЧНЫХ ТЕПЛОЭНЕРГЕТИЧЕСКИХ УСТАНОВОК С СЕЛЕКТИВНЫМИ ПРИЕМНИКАМИ ИЗЛУЧЕНИЯ

Аннотация

Subjects of research: solar heat and energy equipments, exactly, radiation characteristics of solar receivers and their influence to efficiency of equipments Purpose of work: to develop methods and models intended to define efficiency of using selective surfaces in solar low and high temperature equipments and working out recommendations by their applications. Methods of the research: There are used fundamentals of photometry, geometrical optics and theoretical bases of heat engineering, universally recognized methods of numerical solution of equation of thermal conductivity and methods of data handling. The results obtained and their novelty: determination methodology of integrated radiation characteristics by equilibrium temperature which is notable with convection heat losses' new circuit of calculation; numerical model of "hot box" which is notable with convection heat losses from side surfaces and determination ability influence of receiving surfaces' selectivity to efficiency; determination methodology of optimal parameters (concentration, conversion temperature) of solar heat-and-power engineering equipments with selective receiver of radiation; determined: maximal efficiency of solar heat-and-power engineering equipments Practical value: determination methodology of integrated radiation characteristics and its experimental refining can be used to determine radiation characteristics of different materials; developed thermal models of solar low temperature equipments and their numerical and software implementation can be used in degree validation of solar receiver's selectivity; results of system optimization receiver - thermodynamic reformer can be used to determine optimal parameters of receiver's selectivity, concentration of solar radiation and temperature transformation Degree of embed and economic effectivity: results of the work allowed to base requirements to selectivity of solar radiation detectors and consequently to bring down costs to manufacturing them. Field of application: low and high solar temperature equipments