NUMERICAL METHODS FOR NON-REVERSIBLE PROCESS IN CONDENSER, APPLICABLE TO HYDROGEN ISOTOPES SEPARATION SYSTEM SORIN GHERGHINESCU National Institute of R&D for Cryogenics and Isotopes Technologies (ICIT) ABSTRACT The increasingly use of numerical methods for thermal exchangers dimensioning led to the development of several computing models able to cope with two-phase flow (with or without phase shift). Regarding the pure vapour condensation in a stratified two-phase flow, different relations are used to obtain the average heat transfer coefficients as well as among those measured. Also there is a noticeable difference between the two set of coefficients, theoretical and measured. |