Abstract
There are great hopes that non-combustion propulsions are used as a rocket engine in safety. We have been investigating and developing the cold gas propulsion system (i.e. CEES engine) without combustion process using LN_2 and H_2O. The study on the propulsion is insufficient in all aspects. In terms of non-combustion systems, experimental studies have been conducted by some universities. Adequate analytical models for the system, however, have been absent. Therefore, I proposed a new theoretical model for non-combustion engine system. The predictions of this proposed model were consistent with experimental measured values in quality. It was shown that the vaporized efficiency in mixing chamber has room for improvement.
