Browsing by Subject "flow dynamics"

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Access status: Open Access ,
A new concept of a catalyst support for internal combustion engines
(Wydawnictwa AGH, 2007) Worsztynowicz, Barbara
Standard catalysis reactors are characterized by their channel structure. There are several channels per each cm2 of the core's surface. At the same time the length of each channel exceeds 100 times the cross section size. This causes splitting of the incoming to the reactor fumes into thousand pieces. Such a construction is characterized by a Iow mechanical endurance, high flow resistance, high inertia and an inclination for corking of particular channels. The core, according to the new conception, is made of: central partition connected continuously along the whole length of the side wall and a series of side and middle elements situated symmetrically on both sides of the middle partition. The height of the element walls is the height of the side walls and together they form a two side system of a network with crossing passage channels. Those channels are open on the axis inflow-outflow as well as in a direction perpendicular to the mid intersection. Both the middle and the side elements have internal spaces forming respectively middle and side compartments. Those compartments form a common two side open space for each pair of elements situated symmetrically to the middle partition. Each compartment has a connection with the channel network through a particular crack. The catalyser with core of the new construction is characterized by the good flow and mechanical properties. Preliminary experimental tests have shown that the phenomena occurring during the flow through the catalyser are with good agreement with the assumptions.