... on performance. A boiler is designed that facilitates the heat transfer required for adequate cooling and is modeled using the effectiveness-number of transfer units method. The computed specific impulse and thrust-to-weight ratio of the design for the propellants considered are roughly 250 s and 2000...

... boiler. Options investigated included the direct combustion of solid biomass via both existing and auxiliary burners, the external gasification of the solid biomass, and the external combustion of the biomass in an auxiliary boiler. The methodology used, key results, and discussion of the relative...

... much lower heating value and different chemical compositions from those of coal and natural gas. Firing these alternative fuels in the boilers that are originally designed for coal firing or natural gas firing may cause unexpected boiler operating issues and/or thermal performance degradation...

...Gasser Hassan; Mohamed Pourkashanian; Derek Ingham; Lin Ma; Stephen Taylor This study is concerned with building a computational fluid dynamics (CFD) model to simulate the combustion process occurring in the combustion chamber of some domestic boilers. The burner used in this boiler...

...Larry W. Swanson; David K. Moyeda A quasisteady multimode heat-transfer model for boiler concentric-tube overfire air ports has been developed that predicts the effect of geometry, furnace heat source and heat sink temperatures, axial injector wall conduction, and coolant flow rate on the tube wall...