Thermal performance and numerical simulation of high temperature air combustion boiler with low NOx emission

摘要

Thermal performance of a high temperature air combustion boiler in the experiments and three-dimensional numerical simulations is examined. The fuel can be efficiently combusted by high temperature preheated air (800°C-1000°C) are examined. The boiler has a new feature that the calorific value of the gasification gas is so low that not only air but also gasification gas is preheated to 900°C. At first, the natural gas combustion is experimented, then the high thermal performance and low NOx emission were obtained. The numerical calculation of the syngas combustion is carried out for prediction.