Zbaraz L. Modelling of heat exchange processes in the lamella evaporator of the system of heat supply

The purpose of research will consist in studying processes of heat exchange at steam formation in the vertical slot-hole channel and development of effective evaporators of lamellar type. Object of research - laws the heat exchange processes at steam bubbles boiling of a liquid in vertical slot-hole channels of the lamellar evaporator. Methods of research. Achievement of the purpose put in work and the decision of the formulated problems are based on use of methods of physical and mathematical modelling of processes warmly and heat and weight exchange in the lamellar evaporator. Experimental researches of processes heat and weight exchange are carried out at the research stand, for data processing physical experiment methods of mathematical statistics are used. Novelty - on the basis of the data mathematical and physical modelling are received new criterion equation for calculations of factors of heat exchange at boiling a liquid in vertical slot-hole channel and goffered channels in a range of pressure 0,04... 0,15 МPa, with inclusion in criterion the equation of thermodynamic parameter which takes into account nonequilibrium courses of process of steam formation. A degree of introduction - results of work are introduced in educational process NTU "KPI" and for modernization of working systems of a heat supply that is confirmed with four acts. Area of use - industrial heat power engineering.