Thermal modeling of radiation and convection sections of primary reformer of ammonia plant

Effect of design parameters on performance of a top fired natural gas reformer

“…The method has been used for many applications in Cartesian or cylindrical coordinate systems [3] that fall into one of the three main categories of well-stirred tank, long furnace and multi-zone. In the well-stirred tank model, the whole body of gases in the furnace is considered as one zone [4,6,7], however, the long furnace model that is one-dimensional along the furnace, divides the furnace gases into several zones. Three-dimensional form of the method, is called multizone model (zone method) and it is applied in a radiative enclosure with subdivision zones in each dimension.…”