A Model for Design and Analysis of Regeneratively Cooled Rocket Engines

Abstract

A new model for the design and analysis of a regeneratively cooled rocket engine is developed. In this model two proven rocket thermal analysis codes, TDK and RTE, were conjugated. The integration of these codes was accomplished via an interface file. The accuracy of this combined TDK-RTE model was examined by comparing its results to those of other methods for the SSME and experimental data for a liquid oxygen cooled RP1/LOX engine. Several of the additions and modifications incorporated into this model make it an excellent tool for designing the cooling circuits of regeneratively cooled engines.

Axi-Symmetric Thermal Analysis of Regenerative Cooled Cryogenic Engine Nozzle Using Fem

“…The Heat Transfer between the coolant and the thrust chamber wall is by forced convection. The correlationsusedforcoolantsideheattransferareprincipallybase dontheconventionalNusselt-type correlations for turbulent, thermally fully developed flow for fluids with constant property values [12], [13]. The Reynolds Number of flow is estimated to the order of10 5 ,thus heat transfer correlation is estimated using Nusselt-type correlation developed by Gnielinski; since Reynolds number and Prandtl number of the coolant flow lie in the permissible limits for using Gnielinski correlation [9].…”

Viscosity measurements of hydrocarbon fuel at temperatures from (303.2 to 513.2)K and pressures up to 5.1MPa using a two-capillary viscometer

“…In the heat management technology for scramjet, hydrocarbons are always applied as fuel and coolant in a regenerative cooling system [1][2][3][4]. Thermophysical properties of hydrocarbon fuel are deeply demanded in the cooling system design for future application.…”

Dual Regenerative Cooling Circuits for Liquid Rocket Engines (Preprint)

“…To demonstrate the effectiveness of such a dual-circuit cooling design for a hydrocarbon coolant, consideration is given to the same engine described in reference 5 . The RP1 cooled case is analyzed for a coolant flow rate of 20.3 lbm/s and an inlet temperature of 520 ºR.…”

“…This paper demonstrates the effectiveness of co-current flow and dual-circuit systems. The combined TDK and RTE codes, described in References [2], [3] and [4], are modified to include the capability of a dual-circuit analysis. The modified TDK-RTE model is used to examine the thermal characteristics of a dual-circuit design for the SSME and RP1-LOX engines.…”