A study of the air temperature and velocity profile in Dan-kwian village kiln cause by rectangular holes in the side wall

Abstract

The research is study in the distribution of the hot air temperature and velocity that
have the free flow inside Dan-kwian Kiln without the product, and then comparing the
behavior for two cases, not penetrate and penetrate the rectangular holes at two side walls
by using the finite element method. The given of data can be used as data base for take
understand and solve in the wood problem and save the energy in the process of heat
supplying in Dan-Kwian kiln. After study the process of heat supplying in Dan-Kwian kiln
and then create the flow domain model same as a real Dan-Kwian kiln and then calculating
for the variable distribution in two cases of temperature are 800°C and 1200°C and the
varying of velocity. The finite element equation constitution of three theorem are the
conservation of mass that bring to the continuity equation, momentum equation in x and y
directions, and the last energy equation are analysis in two dimension. Consider the
boundary condition at the inlet, outlet, and at the wall. To determine the solution for this
problem will be applying the weight residual to the momentum equation, energy equation,
and continuity equation and cause by the form of the equation has non-linear, then we
determine by the technique of the Newton-Raphson iteration, finally, using the ANSYS 8.1
program to calculate for the distribution of temperature and velocity in the kiln.