Effusion cooling of throat region in rocket engines applying fibre reinforced ceramics

CMC Rocket Combustion Chamber with Effusion Cooling

“…The properties of C/C, as small heat conductivities (1 − 1.2 W/mK), insensibility against thermal shocks and very high tolerable wall temperatures (≥ 2500 K) (see [11], [4], [12] and [13]), make C/C structures especially suited for components with very high thermal loads. Additionally, due to the avoidance of thermal shock problems C/C structures are also attractive in terms of re-usability and its comparatively low densities (1.3−1.4 g/cm 3 ) is especially interesting considering light weight design.…”

Transpiration cooling of a nose cone by various foreign gases

“…They also proposed a model for surface catalysis on the porous material. Serbest et al [15] experimentally investigated transpiration cooling of a porous cylinder combined with a porous nozzle for pressures ranging from 0.8 to 1.2 MPa. Jin et al [16] experimentally studied the thermal performance of the nose cone model subjected to air transpiration and conducted a preliminary numerical investigation to analysis the influence of some relative parameters.…”

“…Bellettre and Bataille [12] experimentally studied the thermal behavior of porous plates subjected to air blowing and modeled the physical phenomena by considering the porous plate as a discrete succession of pores and solid elements which showed good agreement with measured results. In addition, the complicated geometries corresponding to practical applications such as the scramjet engine combustion chamber nozzle, the throat region in rocket engines and nose caps or slender cones for re-entry vehicles have also attracted interest [6,[13][14][15]. These studies were usually conducted in segmented combustors which can produce extreme high pressures and temperatures as in a combustion chamber or in high temperature wind tunnels to simulate re-entry heating conditions.…”

Fabrication of Porous Transpiration C/SiC Composites

“…At present, the research face a problem that the traditional materials such as porous sintered steel, Cu-alloy can not meet the requirement of transpiration cooling technique because of its high density, high coefficient of thermal expansion, low maximum allowable temperature. So the C/C, C/SiC composites with promising properties such as comparatively low densities, small heat conductivities, insensibility against thermal shocks, very high tolerable wall temperatures and low thermal expansion are ideally alternative materials [2,3].…”