As a result, under this test, the energy-saving efficiency in raising temperature process is 26. 2 percent, and the energy-saving efficiency under steady state of furnace is relative to the temperature of furnace hearth, being 9. 5 to 18 percent.
On the basis of a series of theoretical analysis and experimental studies, the heat exchange characteristics of flame furnace hearth mainly working on convection in the condition of supplying heat by high-speed burner and the corresponding model for heat transfer computation are presented in this paper, an idea is given that the traditional heat exchange theory and computation method in the furnace hearth primarily dependant on radiation should be modified and developed.
Through statistical analysis, an approach to combustion efficiency of 300-600MW boilers existing now in operation and their furnace thermal characteristic parameters under different combustion modes has been made, putting forward some reference parameters for design and mode-selection of furnace hearth in the future.
お dynamic mathematical model of boiler's air-flue gas system is suggested and by using it an experimental analysis is made to simulate the property of dynamic response of the system and the process of implosion in the furnace chamber.
The thermal efficiency of the boiler was obviously improved through perfection of combustion system, test of aerodynamic field in cold furnace chamber, adjustment of combustion in hot stat and reduction of exhaust fume temperature.
Determination of the volumetric heat generation in a furnace chamber from the radiation flux distribution
A thermal model of a furnace chamber involving both a three-dimensional radiation heat transfer equation and an energy equation describing the one-dimensional flow of a combustible mixture is proposed.
The model allows one to calculate the temperature and heat flux distributions both in the volume and at the boundaries of the furnace chamber.
A method is proposed for calculating isothermal flows in channels of complex configuration, for the example of a vortex furnace chamber.
Thermal Calculation of the Furnace Chamber of a Fire‐Tube Boiler With a Dead‐End Furnace