Paper presented at the 5th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, South Africa, 1-4 July, 2007.
A two-fluid model was used to model and simulate the flow
of an organic binary mixture through a generator and a bubble
pump tube. Both thermal and non-thermal equilibrium
conditions were examined. Results obtained from a steady state
steady flow experimental system operated with R22-DMAC
(chlorodifuoromethane- N-N' dime-thylacetamide) as working
fluids were used to validate the predictions of the numerical
simulations. The predictions of the numerical simulations for
various heat sources on the flow characteristics were compared
with the experimental results. Based on the numerical
simulations detailed description of the flow characteristics
inside the generator and the bubble pump tube were obtained.