A condition based maintenance system for important auxiliary equipment of thermal power unit

Through the research and development of key technologies of condition-based maintenance for power generation equipment, a set of important auxiliary equipment condition-based maintenance system for thermal power unit has been developed, which realizes the functions of integrated display of equipment-related data, equipment modeling configuration tool, equipment condition monitoring, equipment deterioration trend warning, equipment fault diagnosis, equipment health status evaluation, maintenance decision-making and so on. By studying the comprehensive assessment model of health state of power generation equipment, the equipment can be analyzed and evaluated scientifically and comprehensively, and the health state of equipment can be controlled step by step, thus improving the reliability of equipment operation.

Thermal Study and Emission Characteristics of Rice Husk Using TG-MS

Rice husks are a by-product that is generated in large quantities in Spain. However, they are not used efficiently. One of their possible applications is its thermal use in power generation equipment. For that purpose, it is important to know the characteristics of rice husks and their thermal behavior, as well as their possible pollutant emission to the atmosphere with respect to its thermal use as a biofuel. In this work, the thermal characteristics of rice husks and their thermal behavior were studied by using thermogravimetry and mass spectroscopy for two different atmospheres (oxidizing and inert). This way, the thermal profiles and the main characteristics were studied, as well as the emission of possible pollutants to the atmosphere, such as CO2, CH4, NO2, NH3, SO2, and H2S. Moreover, three different methods (FWO, KAS, and Starink) were used to carry out a thermal analysis, in order to obtain the main thermal parameters such as activation energy. The results of the analysis predicted that rice husks could be used as biofuel in industrial thermal equipment based on its acceptable calorific value, good thermal characteristics, and low gas emissions both in oxidizing and inert atmosphere (although they have a high ash content).

Using Large-Scale Programs to Help Develop Technological Capabilities

China is a developing country but has made impressive progress in technological capability development. One strategy proved to be effective is the use of large-scale programs to help technological capability development. Examples include the subway equipment industry, the high-speed rail industry, the power generation equipment industry, the power transmission industry, the telecom equipment industry, etc. In all these sectors, China was lagging behind the technological innovation frontier before the related large-scale programs but is now among the world leaders. In this chapter we will try to understand the process of initiating and managing these large-scale programs.

A Review of the Research on the Influence of Cavitation and Abrasion on Hydroturbine Performance

Large and medium sized water conservancy projects generally have comprehensive benefits such as flood control, water supply, irrigation and power generation. As the main hydraulic power generation equipment, the safe and economic operation of hydroturbine generator sets is of vital importance. For a hydroturbine affected by the flow of water in the running process, the paper explores the cavitation and abrasion phenomena, analyses the phenomenon of resource waste, energy waste and material waste caused by unreasonable protection of water turbine, and introduces relevant protective measures. These results further enhance the understanding of the corrosion resistance of the hydroturbine and could be used to optimize the hydroturbine protection techniques.