Numerical Simulation Of Chicken Manure
Gas Reformers Using An Extended Chemical
Reaction Mechanism
Author(s)
M. Abou-Ellail, R. Amano & K. Beshay
Abstract
The present paper is concerned with the numerical computations of flow, heat
transfer and chemical reactions in two-dimensional cylindrical gas reformers.
The reformer is overlaid with a two-dimensional grid of nodes having 300 in the
radial direction and 1000 nodes in the axial direction. The governing equations
for momentum, mass continuity, energy and species mass fractions are solved
numerically using finite-volume procedures. The solutions are considered
converged when the errors in the finite-volume equations are less than 0.1
percent. The reformer is fed with gasified gas coming from the gasifier at
temperatures ranging from 1000 K to 1300 K. Moreover, the reformer is also
supplied with hot air at temperatures ranging from 700 K to 800 K. The reformer
diameter is 350 mm and is 4574 mm high. The reformed gases contain air,
methane, hydrogen, nitrogen, carbon monoxide and carbon dioxide. The volume
flow rates of the gasified gas range between 60 and 80 Nm3/s. However, the hot
air volume flow rates range between 20 and 30 Nm3/s. The obtained results for
the gas reformer performance at different operating conditions are compared
with the limited available experimental data for similar reformers. The
agreement is acceptable with some discrepancies in the compositions of the
gases exiting the reformer. This is because some of the geometries and boundary
conditions of the tested gas reformers are missing.
Keywords: numerical simulation, gas reformer, chemical reactions, species mole
fraction.
Keywords
numerical simulation, gas reformer, chemical reactions, species mole
fraction
Related Book
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