Boiling process modelling peculiarities analysis of the vacuum boiler

[摘要] The analysis of the low and medium powered boiler equipment development was carried out, boiler units possible development directions with the purpose of energy efficiency improvement were identified. Engineering studies for the vacuum boilers applying are represented. Vacuum boiler heat-exchange processes where boiling water is the working body are considered. Heat-exchange intensification method under boiling at the maximum heat- transfer coefficient is examined. As a result of the conducted calculation studies, heat-transfer coefficients variation curves depending on the pressure, calculated through the analytical and numerical methodologies were obtained. The conclusion about the possibility of numerical computing method application through RPI ANSYS CFX for the boiling process description in boiler vacuum volume was given.

[发布机构] Omsk State Technical University, 11 Mira ave., Omsk; 644050, Russia^1

[效力级别] 物理学 [学科分类] 力学，机械学

[关键词] Boiling process;Development directions;Energy efficiency improvements;Equipment development;Heat exchange process;Maximum heat transfer;Numerical computing;Numerical methodologies