Airflow mixing augmentation device for hot-air heating systems in modular boilers

The article demonstrates the results of the theoretical research devoted to the study of air flow interaction in hot-air heating systems of automatic modular boilers involving the use of fan heaters. The work quotes the results of mathematic simulation of various density air flows that are vertical to each other

Airflow mixing augmentation device for hot-air heating systems in modular boilers

The article demonstrates the results of the theoretical research devoted to the study of air flow interaction in hot-air heating systems of automatic modular boilers involving the use of fan heaters. The work quotes the results of mathematic simulation of various density air flows that are vertical to each other

Increase of energy efficiency in proportional adjusting of flow rate in the boiler circuit

The article presents the results of theoretical studies in the field of the boiler circuit operating modes for the boiler rooms operating by the independent heat supply scheme. The 3D model of a boiler circuit for a boiler room with 3 MW rated output was developed, based on which there was made an estimation of the boiler pump performance indicators. There is proposed a method for reducing energy costs for the operation of the pumping equipment of the boiler circuit

Analytical evaluation of energy efficiency potential enhancement of heat-generating units by flow variation in the boiler circuit

Three-dimensional models of the most common boiler schemes are developed and the hydraulic characteristic of each scheme is built. The calculation results of the main technical and economic indicators of the schemes are done. They are energy, metal consumption, capital costs and operating costs. According to the results of the analysis, there is a technical solution to reduce the energy consumption of the boiler circuit pumping equipment. The complex evaluation of the options in the context of the boiler manufacturer and operation is made, the investment attractiveness is calculated

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Major Contaminants in Industrial and Domestic Wastewater

This paper provides an overview on the type and concentration of the major contaminants in industrial and domestic wastewater. The present study was conducted to analyze and collect data on hazardous substances in wastewater from petrochemical plants, pulp and paper mills, electroplating industries, power plants, and municipal sources (households and small industries)

Study of Recrystallization Mechanism in Disperse Systems

An experimental and theoretical study is described of the recrystallization kinetics and mechanisms for some model substances of different solubilities like ammonium-aluminum sulfate, silica gel, and gypsum, under temperature and concentration variations. The assymetry of kinetic parameters for dissolution and recrystallization is due to different influence the solid phase surface exhibits in Mndering or favoring hydration/dehydration and incorporation/elimination equilibria. A major obstacle in theoretical interpretation is the lack of a comprehensive theory of concentrated solutions